HomeMy WebLinkAbout2008.10.08 - Sims Way Howard Street Wetland Report950 Pacific Avenue, Suite 515
Tacoma, WA 98402
(253) 926-2493
October 8, 2008
Prepared for
WHPacific
Sims Way Howard Road Wetland Report
Port Townsend, Washington
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TABLE OF CONTENTS
Page
1.0 INTRODUCTION 1-1
1.1 SITE DESCRIPTION 1-2
1.2 WETLAND FINDINGS 1-2
1.3 REGULATORY BACKGROUND 1-4
2.0 METHODS 2-1
2.1 BACKGROUND INFORMATION 2-1
2.2 FIELD INVESTIGATION 2-1
2.2.1 Wetland and Stream Classification, Rating/Typing, Functional Assessment, and
Buffer Width 2-2
3.0 RESULTS 3-1
3.1 BACKGROUND INFORMATION REVIEW 3-1
3.2 WETLAND DELINEATION/FIELD INVESTIGATION 3-1
3.2.1 Wetland A 3-1
3.2.1.1 Vegetation 3-2
3.2.1.2 Soils 3-2
3.2.1.3 Hydrology 3-2
3.2.1.4 Wetland Determination 3-2
3.2.1.5 Upland Characterization 3-3
3.2.2 Wetland C 3-4
3.2.2.1 Vegetation 3-4
3.2.2.2 Soils 3-4
3.2.2.3 Hydrology 3-5
3.2.2.4 Wetland Determination 3-5
3.2.2.5 Upland Characterization 3-5
3.2.3 Wetland E 3-6
3.2.3.1 Vegetation 3-6
3.2.3.2 Soils 3-6
3.2.3.3 Hydrology 3-7
3.2.3.4 Wetland Determination 3-7
3.2.3.5 Upland Characterization 3-7
3.2.4 Wetland I 3-8
3.2.4.1 Vegetation 3-8
3.2.4.2 Soils 3-8
3.2.4.3 Hydrology 3-8
3.2.4.4 Wetland Determination 3-8
3.2.4.5 Upland Characterization 3-9
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3.2.5 Wetland J 3-9
3.2.5.1 Vegetation 3-9
3.2.5.2 Soils 3-10
3.2.5.3 Hydrology 3-10
3.2.5.4 Wetland Determination 3-10
3.2.5.5 Upland Characterization 3-10
3.2.6 Wetland N 3-11
3.2.6.1 Vegetation 3-11
3.2.6.2 Soils 3-12
3.2.6.3 Hydrology 3-12
3.2.6.4 Wetland Determination 3-12
3.2.6.5 Upland Characterization 3-12
3.2.7 Wetland O 3-13
3.2.7.1 Vegetation 3-13
3.2.7.2 Soils 3-13
3.2.7.3 Hydrology 3-13
3.2.7.4 Wetland Determination 3-14
3.2.7.5 Upland Characterization 3-14
3.2.8 Wetland T 3-14
3.2.8.1 Vegetation 3-15
3.2.8.2 Soils 3-15
3.2.8.3 Hydrology 3-15
3.2.8.4 Wetland Determination 3-15
3.2.8.5 Upland Characterization 3-16
3.2.9 Area B 3-16
3.2.10 Area D 3-17
3.2.11 Area F 3-18
3.2.12 Area G 3-18
3.2.13 Area H 3-19
4.0 CONCLUSIONS 4-1
5.0 USE OF THIS REPORT 5-1
6.0 REFERENCES 6-1
LIST OF FIGURES
Figure Title
1 Vicinity Map
2 Study Area Map
3a Wetland Delineation Map
3b Wetland Delineation Map North
3c Wetland Delineation Map Central
3d Wetland Delineation Map South
4 Proposed Improvements
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LIST OF TABLES
Table Title
1 Methods for Wetland Determination
2 Wetland Delineation Summary
3 Summary of Characteristics of Wetlands and Upland Areas
LIST OF APPENDICES
Appendix Title
A Background Information Review Figures
B Soil Profile Reports
C Wetland Data Sheets
D Selected Site Photographs
E Wetland Rating Forms
F Maps with Wetland Flags and Data Plots
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1.0 INTRODUCTION
The City of Port Townsend (City) is a tourist destination and also provides tourist access to the
surrounding Olympic Peninsula through roadway and ferry connections. In order to increase accessibility
within the City, the City is proposing two roadway improvement projects, the Sims Way project and the
Howard Street project (Figure 1).
The Sims Way project will improve operations and enhance the entrance into the City of Port
Townsend from Howard Street to Thomas Street and includes the following improvements:
• Providing access control for Sims Way (SR20) from Howard Street to Logan Street by
construction of a center median
• Constructing roundabouts at the Sims Way intersections at Howard Street and Thomas Street
• Constructing stormwater detention and treatment facilities including ecology embankments
and a storm pond at Logan Street and 3rd Street
• Constructing sidewalks and pedestrian crossings.
The Howard Street project will provide a connection between Sims Way and Discovery Road.
The Howard Street project involves realigning and extending Howard Street to Discovery Road, and
includes the following improvements:
• Constructing an intersection with 6th Street and Howard Street approximately 500 ft north of
the Sims Way – Howard Street roundabout
• Constructing a roundabout at the intersection of Howard Street, Rainier Street and Discovery
Road
• Realigning and extending Howard Street to Discovery road as a two-lane road with on-street
parking and bike lanes
• Constructing rain gardens and a gravel trail parallel to Howard Street.
These projects are adjacent to each other, but have logical termini and independent utility.
Furthermore, it is anticipated the Sims Way project will have federal funding, and the Howard Street
project is anticipated to have Local Improvement District funding.
Landau Associates, under contract to WHPacific, provided environmental investigations within
the Sims Way project area and the Howard Street project areas to assist the City with determining
potential wetland impacts, including impacts to “waters of the U.S.” and their associated buffers as a
result of the improvements.
As part of the scope of this project, this wetland report has been prepared to assist the U.S. Army
Corps of Engineers (USACE) with making a jurisdictional determination of the delineated wetlands. After
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the jurisdictional determination, regardless the wetlands will be regulated by the Port Townsend Code and
a wetland mitigation plan will be provided to compensate for unavoidable wetland and buffer impacts
subject to federal, state and/or local regulations.
1.1 SITE DESCRIPTION
The wetland review area was limited to the Howard Street area beginning approximately 300 ft
south of the intersection of Sims Way (SR 20) with Howard Street, extending north, and ending
approximately 500 ft north of the intersection of Discovery Drive/Rainier Street. There are no wetlands
along the Sims Way corridor, east of Howard Street.
The projects are in the City of Port Townsend, Jefferson County (Figure 2) within Township 30
North, Range 1 West, Sections 09 and 10, and Water Resource Inventory Area (WRIA) 17 – Quilcene-
Snow.
Land uses and the zoning along both Sims Way and Howard Street are mainly commercial with
mixed use areas and some residential uses. The Howard Street project includes a pasture/meadow area
along the west side of Howard Street, however that area is zoned for commercial use according to the
City of Port Townsend Zoning Map.
1.2 WETLAND FINDINGS
The wetland review area is located in Drainage Basin 11 and 16 according to the Port Townsend
Drainage Basin map (see Drainage Basin Map, Appendix A). According to the Port Townsend
Environmentally Sensitive Areas (ESA) Map the area from wetland A north to wetland E is within a
potential Critical Drainage Corridor (See Howard Street Project Area Map, Appendix A). However, the
City’s ESA map is not definitive; it is an indicator of potential critical areas. Further research and field
investigation is underway to determine the presence or absence of a critical drainage corridor. The
proposed stormwater treatment for this project includes adding features such as rain gardens, storm ponds,
and ecology embankments. The roadway design will comply with the Port Townsend Engineering
Design Standards (EDS) Manual requirements for construction in Critical Drainage Corridors. The
location of these wetlands in the Critical Drainage Corridor does not imply a wetland mosaic system.
According to the Department of Ecology’s Wetland Rating System for Western Washington:
“…the entire mosaic should be considered one unit when:
• Each patch of wetland is less than one acre (0.4 hectacres)
• Each patch is less than 100 ft (30 meters) apart, on the average
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• The areas delineated as vegetated wetlands are more than 50% of the total area of the
wetlands and the uplands together, or wetlands, open water, and river bars.
If these criteria are not met, each area should be considered a single unit.”
Although wetlands A through E are located in a potential Critical Drainage Corridor, the upland
area is well over 50% of the total area. Therefore the wetlands within the potential Critical Drainage
Corridor do not meet the criteria for mosaic wetlands.
The following is a synopsis of the wetlands delineated by Landau Associates in the project area,
their size, and wetlands impacts from the roadway project.
Wetland Size
square
feet (sf)
Class
Cowardin/HGM
Categ
ory -
score
Buffer
PTMC
Wetland
Impacts
(sf)
Buffer
Impacts
(sf)
Highest Function
by score and
Regulated PTMC?
A 12,697 PFO/Depressional III-36 80 12,697 64,998 Water Quality -18
Yes
C 1,130 PEM/Depressional IV-28 50 1,130 14,878 Water Quality -16
Yes
E 240 PEM/Depressional IV-29 50 240 11,019 Water Quality -16
No
I 11,159 PSS/Depressional IV- 27 50 462 5,753 Water Quality -14
Yes
J 3,846 PFO/PSS/
Depressional
III- 30 80 266 3,795 Water Quality -14
Yes
N 1,736 PFO/Depressional IV- 29 50 740 19,366 Water Quality –
14
Yes
O 755 PEM/Depressional IV- 29 50 269 9,147 Water Quality -10
No
T 12,936 PEM/PFO/
Depressional
III- 37 60 0 0 Water Quality –
16
Habitat -15 - Yes
PFO – Palustrine Forested
PEM – Palustrine Emergent
PSS – Palustrine Scrub-Shrub
*Wetland O buffer overlaps with Wetland J buffer and, therefore buffer impacts are listed as 0.
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Wetlands K and L were previously delineated and the delineation work only verified the existing
boundaries of those two wetlands. Additionally, Wetlands K and L and their associated buffers are not
impacted by the project.
Wetlands E and O are Category IV and less than 1,000 square feet. According to the PTMC
19.05.110 area 5 Wetlands (C) 2 Category III and IV wetlands less than 1,000 square feet are not
regulated by the PTMC. These are included since there is the potential that the USACE may find these
wetlands as non isolated and jurisdictional.
The total estimated wetland impacts from the proposed project will be a maximum of 0.37 acres
with an estimated buffer impact of 3.1 acres. All mitigation for impacts to wetlands and buffers will be in
compliance with the PTMC, 19.05.110 – Critical Area 5 – Wetlands (F). The City is investigating a
couple of different mitigation options and sites, therefore a separate mitigation report will be prepared for
the proposed project.
Detailed wetland information for each of the delineated wetlands and reviewed areas is provided
in Section 3.0, information includes soils, plants, hydrology, functional scores and upland characteristics.
The complete data sheets are in Appendix C and complete rating forms are available in Appendix E
attached to this report.
1.3 REGULATORY BACKGROUND
Wetlands and streams are regulated by federal, state, and local governmental agencies, and
compliance with one agency does not fulfill permitting requirements of any other agencies. The Clean
Water Act (CWA) requires authorization for the discharge of dredged or fill material into “waters of the
U.S.” under Section 404 and Section 401. The Section 404 permit process is administered by the U.S.
Army Corps of Engineers (USACE). The Washington State Department of Ecology (Ecology) has
administrative oversight under Section 401 of the CWA for water quality certification in the case of
impacts under the jurisdiction of the USACE. If the wetlands are not regulated by the USACE, then
Ecology will require compliance with the State Water Pollution Control Act (RCW 90.48). In addition, if
the wetlands qualify as waters of the State, the Washington State Department of Fish and Wildlife has
jurisdiction and could regulate under the State Hydraulic Code (RCW 77.55). The City of Port Townsend
Municipal Code Section 19.05.110 – Critical area 5 - Wetlands contains requirements for establishing
wetland buffer widths, and building setbacks and for fill or alteration of wetlands and their buffers.
The USACE determines the jurisdiction of a wetland based on the connection, more commonly
referred to as adjacency, to other “waters of the U.S.” The delineated wetlands in the Howard Street
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project may be considered isolated by the USACE. The USACE is the only agency that can make the
determination of adjacent or isolated position.
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2.0 METHODS
The wetland investigation was conducted in accordance with the USACE Wetland Delineation
Manual (USACE 1987); the USACE Regional Guidance letter on the 1987 Manual (USACE 1994); and
the Washington State Department of Ecology’s (Ecology’s) Washington State Wetlands Identification and
Delineation Manual (Ecology 1997). The USACE and Ecology recommend preliminary data gathering
and synthesis of available background information, followed by a field investigation. All delineation work
was conducted prior to the adoption (in June) of the USACE Interim Regional Supplement to the Corps of
Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (USACE 2008).
2.1 BACKGROUND INFORMATION
Public domain resources were reviewed prior to the field investigation to determine existing
conditions and potential wetland and stream resources in the study area and vicinity. The following
public domain resources were reviewed:
• Natural Resource Conservation Service (NRCS) Soil Survey and Hydric Soils List (NRCS
website 2008b)
• U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (USFWS 1987 to
current)
• Washington Department of Natural Resources (WDNR) Washington National Heritage
Program (WDNR website 2008)
• Environmental Sensitive Wetland Area Study, prepared for City of Port Townsend, Public
Works Department, by Loggy Soil and Wetland Consulting, May 2005
• Wetland Delineation and Analysis Report, Howard Street Wetland Delineation, prepared for
City of Port Townsend, Public Works Department, by Alkai Consultants LLC, July 2007.
2.2 FIELD INVESTIGATION
Both USACE and Ecology outline a three-parameter approach to determine the presence or
absence of wetlands that requires evaluating vegetation, soil, and hydrology (Table 1). Landau
Associates’ biologists completed the field delineation using the routine onsite method, where data are
collected at locations representative of typical wetlands and/or uplands of the study area. Following this
method, an area is determined to be wetland if all of the following three criteria are met (see Table 1):
• The dominant vegetation is hydrophytic
• Soils are hydric
• Wetland hydrology is present.
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2.2.1 WETLAND AND STREAM CLASSIFICATION, RATING/TYPING, FUNCTIONAL
ASSESSMENT, AND BUFFER WIDTH
Wetlands identified in the project area were classified according to the USFWS classification
system (Cowardin) (Cowardin et al. 1979) and the hydrogeomorphic classification (HGM) system
(Brinson 1993). Wetlands were rated according to the Washington State Wetland Rating System for
Western Washington, Revised Edition (Hruby 2004). This system categorizes wetlands based on their
existing functions, including water quality, hydrology, and habitat, and if the wetland is rare, vulnerable,
or unreplaceable. Complete wetland rating forms are provided in Appendix E. Wetland buffer widths
were determined based on the City’s Critical Areas Code, Port Townsend Municipal Code (PTMC)
19.05.110 Critical area 5 - Wetlands. There are no streams in the project area.
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3.0 RESULTS
This section presents the results of the background information review, wetland delineation,
classification, and rating effort.
3.1 BACKGROUND INFORMATION REVIEW
The Soil Survey Geographic Database for Jefferson County, Washington (NCRS 2008a)
identifies one soil series within the study area (see Appendix A); complete soil profile reports are
included in Appendix B:
• Clallam gravelly sandy loam (CMC). The Clallam series consists of deep to densic materials,
moderately well drained soils formed in glacial till over very compact glacial till. The
Clallam soil series is not classified as hydric in the National Hydric Soils List (NRCS 2008b).
3.2 WETLAND DELINEATION/FIELD INVESTIGATION
Landau Associates’ biologists Sacha Maxwell and Jessica Stone conducted wetland delineations
on May 21 and May 22, 2008. Additional delineations were conducted by biologists Steven Quarterman
and Jessica Stone on June 2, 2008; and then by Jessica Stone and Theresa Turpin on June 12, 2008. This
delineation effort was conducted within the official growing season as specified by the Seattle District
USACE (in Western Washington the growing season is typically considered to be from March 1 to
October 31). During the field visits, weather conditions were calm, partly cloudy and near 65 degrees F.
Eight wetlands were delineated as part of this critical area investigation. The locations of critical
areas within the study area are shown on Figure 3. Landau Associates delineated the entire boundary of
Wetlands A, C, E, I, J, N, O and T within the study area, verified the existing delineation of wetlands K
and L and evaluated potential wetland sites in areas B, D, F, G, and H.
Data plots collected at locations that are representative of typical wetland or upland conditions for
the wetlands and potential areas are provided in Appendix C. Selected site photographs of the wetland
and site areas are presented in Appendix D. Descriptions of the wetlands and potential wetland areas are
provided below.
3.2.1 WETLAND A
The entire area of Wetland A is approximately 12,697 square feet, and is next to the existing
Howard Street and near the proposed intersection with the 6th Street right of way (ROW) (see Figure
3a)(see photo 1 in Appendix D).
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Wetland A is not shown on the National Wetlands Inventory (NWI) map. Data Plot DP2 was
recorded to characterize the vegetation, hydrology, and soils of Wetland A and is located near the edge of
the wetland. Data Plots DP1, DP3, and DP5 were recorded to describe the adjacent upland area (see
Appendix C).
3.2.1.1 Vegetation
Vegetation in Wetland A is dominated by hydrophytic vegetation. The dominant plant species in
Wetland A include:
• Nootka rose (Rosa nutkana, FAC).
Additional nondominant species found in Wetland A include Scouler willow (Salix scouleriana,
FAC), snowberry (Symphoricarpos albus, FACU), Douglas spirea (Spiraea douglasii, FACW), and short-
scale sedge (Carex deweyana, FACU).
3.2.1.2 Soils
The soil within Wetland A is characterized as low chroma, and was generally black (10YR 2/1)
sandy loam from 0 to 5.5 inches. Below was light brownish gray (2.5Y 6/2) sandy loam from 5.5 inches
to 13 inches with few brown and black (7.5YR 4/4 and 10YR 2/1) redox features.
3.2.1.3 Hydrology
The soil was moist, but not saturated, at the time of the field investigation. The primary
indicators of wetland hydrology observed were water marks, drainage patterns and sediment deposits in
the depressional areas. Recorded data from a previous report conducted by Alkai Consultants, LLC on
February 28, 2007, indicate that the soil was saturated and depressions were inundated at that time (Alkai
2007). Hydrology for Wetland A is primarily from runoff from adjacent fields and the nearby road.
3.2.1.4 Wetland Determination
All three mandatory wetland criteria were satisfied for Wetland A. Landau Associates classified
Wetland A as palustrine forested (PFO) depressional wetland (Cowardin 1979). At the time of the field
investigation, most of Wetland A was dry; however, drainage patterns, watermarks, and changes from
hydrophytic vegetation to upland vegetation were observed.
Using the Ecology wetland rating form, Wetland A is rated as a Category III wetland, scoring
highest for water quality and habitat functions, with a score of 18 and 13 respectively. Hydrologic
functions were rated with a score of 5. A summary of Wetland A is provided in Table 3.
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3.2.1.5 Upland Characterization
The upland area adjacent to Wetland A is characterized by Data Plot DP1, DP3, and DP5, which
only satisfy one of the three mandatory wetland criteria respectively. Data Plot DP1 is located along side
Howard Street, east of Wetland A, Data Plot DP3 is near the western edge of Wetland A, and Data Plot
DP5 is located to the north of Wetland A in a grassy field (see photos 2 through 3 in Appendix D).
Upland areas upslope from Wetland A likely contribute surface flow, but no primary hydrology
indicators were observed in any of the data plots; however, Data Plot PD5 did show a secondary indicator
of oxidized root channels within 12 inches. Furthermore, the percentage of dominant hydrophytic
vegetative species in the upland areas surrounding Wetland A do not exceed 50 percent.
The uplands adjacent to Wetland A consist mostly of shrubs and forests then opens to grass and
other herbaceous vegetation to the north. Vegetation in forested uplands adjacent to Wetland A at Data
Plot DP1 is dominated by:
• Douglas-fir (Pseudotsuga menziesii, FACU)
• Nootka rose (Rosa nutkana, FAC)
• Scouler willow (Salix scouleriana, FAC).
Additional nondominant species at Data Plot DP1 include snowberry (Symphoricarpus albus,
FACU), orchard grass (Dactylis glomerata, FACU), Kentucky fescue (Festuca arundinacea, FAC-), and
white clover (Trifolium repens, FAC).
Vegetation in forested uplands adjacent to the western edge of Wetland A at Data Plot DP3
includes:
• Scouler willow (Salix scouleriana, FAC)
• Himalayan blackberry (Rubus discolor, FACU).
Additional nondominant species at Data Plot DP3 include oceanspray (Holodiscus discolor, NI),
snowberry (Symphoricarpus albus, FACU), salal (Gaultheria shallon, FACU), nootka rose (Rosa
nutkana, FAC), western thimbleberry (Rubus parviflorus, FAC-), bracken fern (Pteridium aquilinum,
FACU), and short-scale sedge (Carex deweyana, FACU).
Vegetation in the grass and herbaceous area to the north adjacent to Wetland A at Data Plot DP5 is
dominated by:
• Sweet vernal grass (Anthoxanthum odoratum, FACU).
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Additional nondominant species in the adjacent grass and herbaceous areas includes common
velvet grass (Holcus lanatus, FAC), meadow buttercup (Ranunculus acris, FACW-), common vetch
(Vicia sativa, UPL), and Kentucky fescue (Festuca arundinacea, FAC-).
The soil of the uplands adjacent to Wetland A is similar to the wetland, which is hydric
characterized as low chroma. During the field investigation, soil was moist, but not saturated, and lacked
primary indictors of wetland hydrology. Data Plot DP5 did meet one secondary hydrology indicator with
oxidized root channels within 12 inches.
A summary of the typical upland area adjacent to Wetland A is provided in Table 3.
3.2.2 WETLAND C
Wetland C has a total area approximately 1,130 square feet, and located near the proposed
Howard Street alignment in a rectangular grassy meadow used agriculturally for grass and hay production
(see Figure 3a) (see photo 4 in Appendix D). At the time of the investigation, the meadow had not been
mowed or disturbed.
Wetland C is not shown on the National Wetlands Inventory (NWI) map. Data plot DP7 was
recorded to characterize the vegetation, hydrology, and soils of Wetland C and was located in its center.
An adjacent depressional area, Area D, was investigated for wetland status but was determined to be
upland. Data plot DP8 was recorded to describe this area and serve as upland descriptions for nearby
Wetland C.
3.2.2.1 Vegetation
Vegetation in Wetland C is dominated by hydrophytic vegetation. The dominant plant species in
Wetland E include:
• Reed canary grass (Phalaris arundinaceae, FACW)
• Tall fescue (Festuca arundinacea, FAC-).
Additional nondominant species found in Wetland C include Douglas hawthorn (Crataegus
douglasii, FAC), field forget-me-not (Myosotis arvensis, FAC), thick-head sedge (Carex pachystachya,
FAC), and tiny vetch (Vicia hirsuta, NI) and English plantain (Plantago lanceloata, FAC).
3.2.2.2 Soils
The soils within Wetland C are characterized as low chroma. Soils in Wetland C are very dark
brown (10YR 2/2) sandy loam from 0 to 7 inches with few dark yellowish brown (10YR 4/4) oxidized
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rhizopheres. Below from 7 to 12+ inches were dark grayish brown (2.5Y 4/2) silty sand with strong
brown (7.5YR 4/6) redox features.
3.2.2.3 Hydrology
Soils in Wetland C were moist, but not saturated, at the time of the field investigation; and there
were no primary hydrology indicators at the time of the delineation. As secondary indicators, there were
oxidized root channels in the upper 12 inches and the hydrophytic vegetation passed the FAC-neutral test.
Hydrology for Wetland C is primarily from surface runoff from adjacent fields and rainfall.
3.2.2.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetlands C. Landau Associates classified
the Wetlands as a palustrine emergent (PEM) depressional wetland (Cowardin 1979). At the time of the
field investigation, soils within Wetlands C were moist but not saturated, and no primary indicators of
wetland hydrology were observed.
Using the Ecology wetland rating form, Wetlands C was rated as Category IV wetlands, scoring
highest for water quality functions with a score of 16, hydrologic functions and habitat were rated 7 and 5
respectively. A summary of Wetland C is provided in Table 3.
3.2.2.5 Upland Characterization
Area D, adjacent to Wetland C, was investigated as a potential wetland and is described by Data
Plot DP8. This upland area satisfies only two of the three mandatory wetland criteria.
Upland areas upslope from Wetland C likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland C consist of grassland areas within a seasonally hayed field.
Vegetation in uplands adjacent to Wetland C are dominated by:
• Black bentgrass (Agrostis gigantean, FAC)
• Sweet vernal grass (Anthoxanthum odoratum, FACU).
Additional nondominant species in adjacent uplands includes Kentucky fescue (Festuca
arundinacea, FAC-), creeping buttercup (Ranunculus acris, FACW-), common vetch (Vicia sativa, UPL),
tiny vetch (Vicia hirsute, NI), and nootka rose (Rosa nutkana, FAC).
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The soil of the uplands adjacent to Wetland C are hydric with low chroma colors. They are very
dark brown (10YR 2/2) fine sandy loam with few dark yellowish brown (10YR 4/4) oxidized rhizopheres
in the upper 8 inches. During the field investigation, soil was moist with no saturated or standing water.
A summary of the typical upland area adjacent to Wetland C is provided in Table 3.
3.2.3 WETLAND E
Wetland E has a total area of approximately 237 square feet, and is located near the proposed
Howard Street alignment in a rectangular grassy meadow used agriculturally for grass and hay production
(see Figure 3a) (see photo 5 in Appendix D). At the time of the investigation, the meadow had not been
mowed or disturbed.
Wetland E is not shown on the National Wetlands Inventory (NWI) map. Data plot DP17 was
recorded to characterize the vegetation, hydrology, and soils of Wetland E and was located in the center
of the wetland. A nearby depressional area, Area D, was investigated for wetland status. Data plot DP8
was recorded to describe this plot and serve as upland descriptions for nearby Wetland E.
3.2.3.1 Vegetation
Vegetation in Wetland E is dominated by hydrophytic vegetation. The dominant plant species in
Wetland E include:
• Sweet vernal grass (Anthoxanthum odoratum, FACU)
• Common velvet grass (Holcus lanatus, FAC)
• Meadow buttercup (Ranunculus acris, FACW)
• Meadow foxtail (Alopecurus pratensis, FACW).
Additional nondominant species found in Wetland E include tall fescue (Festuca arundinaceae,
FAC-), English plaintain (Plantago lanceolata, FACU+).
3.2.3.2 Soils
The soil within Wetland E is characterized as low chroma. Wetland E was generally very dark
grayish brown (10YR 3/2) sandy loam from 0 to 7 inches with few dark yellowish brown (10YR 4/4)
rhizopheres. Below, from 7 to 12 inches was brown (10YR 4/3) sandy loam with brown (7.5YR 4/4)
redox features.
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3.2.3.3 Hydrology
Soils in Wetland E were moist, but not saturated, at the time of the field investigation; and there
were no primary hydrology indicators at the time of the delineation. As secondary indicators, the wetland
had oxidized root channels in the upper 12 inches and passed the FAC-neutral test. Recorded data from
previous reports conducted by Alkai on March 1, 2007 indicate that there was inundation to 4 inches
(Alkai 2007). Hydrology for Wetland E is primarily from surface runoff from adjacent fields and rainfall.
3.2.3.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetlands E. Landau Associates classified
the wetland as a palustrine emergent (PEM) depressional wetland (Cowardin 1979). At the time of the
field investigation, soils within Wetland E were moist, but not saturated, and no other indicators of
primary wetland hydrology were observed.
Using the Ecology wetland rating form, Wetland E is rated as Category IV wetlands, scoring
highest for water quality functions with a score of 16, hydrologic functions and habitat were rated 7 and 6
respectively. A summary of Wetland E is provided in Table 3.
3.2.3.5 Upland Characterization
Area D, just south of Wetland E, was investigated as a potential wetland and is described by Data
Plot DP8. This upland area satisfies only two of the three mandatory wetland criteria.
Upland areas upslope from Wetland E likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland E consist of grassland areas within a seasonally hayed field.
Vegetation in uplands adjacent to Wetland E is dominated by:
• Black bentgrass (Agrostis gigantean, FAC)
• Sweet vernal grass (Anthoxanthum odoratum, FACU).
Additional nondominant species in adjacent uplands includes Kentucky fescue (Festuca
arundinacea, FAC-), creeping buttercup (Ranunculus acris, FACW-), common vetch (Vicia sativa, UPL),
tiny vetch (Vicia hirsute, NI), and nootka rose (Rosa nutkana, FAC).
The soil of the uplands adjacent to Wetland E are hydric with low chorma colors. They are very
dark brown (10YR 2/2) fine sandy loam with few dark yellowish brown (10YR 4/4) oxidized rhizopheres
in the upper 8 inches. During the field investigation, soil was moist with no saturated or standing water.
A summary of the typical upland area adjacent to Wetland E is provided in Table 3.
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3.2.4 WETLAND I
Wetland I has a total area of 11,159 square feet near the northern end of the study area boarding
Discovery Road (see Figure 3a) (see photos 8 and 9 in Appendix D).
Wetland I is not shown on the National Wetlands Inventory (NWI) map. Data Plot DP11 was
recorded to characterize the vegetation, hydrology, and soils of Wetland I and is located near its edge by
Discovery Road. Data Plot DP10 was recorded to describe the adjacent upland area (see Appendix C).
3.2.4.1 Vegetation
Vegetation in Wetland I is dominated by hydrophytic vegetation. The dominant plant species in
Wetland I include:
• Nootka rose (Rosa nutkana, FAC)
• Douglas spirea (Spiraea douglassii, FACW).
Additional nondominant species found in Wetland I include thimbleberry (Rubus parviflorus,
FAC-).
3.2.4.2 Soils
The soil within Wetland I is characterized as low chroma, and was generally very dark brown
(10YR 2/2) sandy loam from 1 to 6 inches. Below from 6 to 12 inches is grayish brown (2.5Y 5/2) soils
with brown (7.5YR 4/4) redox features.
3.2.4.3 Hydrology
The soil was moist at the time of the field investigation with no saturation or free water below
ground surface. Low watermarks were the primary hydrology indicator. A report by Loggy Soil and
Wetland Consulting recorded watermarks, free water and saturation in this parcel on March 21, 2005
(Loggy Soil and Wetland Consulting 2005). Hydrology for Wetland I is primarily from surface runoff
from the adjacent roads and upland areas.
3.2.4.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetland I. Landau Associates classified
Wetland I as a palustrine scrub-shrub (PSS) depressional wetland (Cowardin 1979). At the time of the
field investigation, Wetland I was moist with no standing or saturated soils.
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Using the Ecology wetland rating form, Wetland I was rated as a Category IV wetland, scoring
highest for water quality functions with a score of 14, hydrologic functions and habitat were rated 5 and 8
respectively. A summary of Wetland I is provided in Table 3.
3.2.4.5 Upland Characterization
The upland area adjacent to Wetland I is characterized by data plot Data Plot DP10 which
satisfies two of the three mandatory wetland criteria. Data Plot DP 10 is located north west of the
Wetland.
Upland areas upslope from Wetland I likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland I consist mostly of shrubs and herbaceous vegetation.
Vegetation in upland areas adjacent to Wetland I is dominated by:
• Nootka rose (Rosa nutkana, FAC)
• Salal (Galthiera shallon, FACU)
• Thick-head sedge (Carex pachystachya, FAC).
Additional nondominant species in adjacent uplands includes sword fern (Pteridium aquilinum,
FACU), dandelion (Taraxacum officinale, FACU), creeping buttercup (Ranunculus repens, FACW).
The soil of the upland is similar to Wetland I. During the field investigation, soil was moist with
no saturated or standing water.
A summary of the typical upland area adjacent to Wetland I is provided in Table 3.
3.2.5 WETLAND J
Wetland J has a total area of 3,846 square feet and is located on Discovery Road near Wetland I
at the northern end of the study area (see figure 3a) (see photo 10 in Appendix D).
Wetland J is not shown on the National Wetlands Inventory (NWI) map. Data plot DP12 was
recorded to characterize the vegetation, hydrology, and soils of Wetland J and was located near the edge
of the wetland near Discovery Road. Data plot DP13 was recorded to describe the adjacent upland area
(see Appendix C).
3.2.5.1 Vegetation
Vegetation in Wetland J is dominated by hydrophytic vegetation. The dominant plant species in
Wetland J include:
• Sitka willow (Salix sitchensis, FACW)
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• Nootka rose (Rosa nutkana, FAC)
• Douglas spirea (Spiraea douglassii, FACW)
• Quacking aspen (Populus tremuloides, FAC+)
• Slough Sedge (Carex obnupta, OBL).
3.2.5.2 Soils
The soil within Wetland J is characterized as low chroma, with several inches of leaf litter and
root matter followed by very dark gray (10YR 3/1) sandy loam from 2 to 8 inches and then grayish brown
(2.5Y 5/2) with brown (7.5YR 4/4) mottles from 8 to 16+ inches.
3.2.5.3 Hydrology
The soil was moist at the time of the field investigation. Primary hydrology indicators include
water marks and drainage patterns. A previous wetland reports from Loggy Soil and Wetland Consulting
reported watermarks, free water, and saturation within this parcel area on March 21, 2005 (Loggy Soil
and Wetland Consulting 2005). Hydrology for Wetland J is primarily from surface runoff from the
adjacent roads and upland areas.
3.2.5.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetland J. Landau Associates classified
Wetland J as a combination of palustrine forested and palustrine scrub-shrub (PFO/PSS) depressional
wetland (Cowardin 1979). At the time of the field investigation, Wetland J was moist with no standing or
saturated soils.
Using the Ecology wetland rating form, Wetland J was rated as a Category III wetland, scoring
highest for water quality functions and habitat, with a score of 14 and 11 respectively, hydrologic
functions were rated 5. A summary of Wetland J is provided in Table 3.
3.2.5.5 Upland Characterization
The upland area adjacent to Wetland J is characterized by data plot DP13 which satisfies none of
the three mandatory wetland criteria. Data Plot DP13 is located near a forested area north of Wetland J.
Upland areas upslope from Wetland J likely contribute surface flow, but no primary hydrology
indicators were observed.
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The uplands adjacent to Wetland J consist mostly of shrubs and forested areas. Vegetation in
forested uplands adjacent to Wetland J is dominated by:
• Scouler willow (Salix scouleriana, FAC)
• Salal (Gaulthiera shallon, FACU)
• Oceanspray (Holodiscus discolor, NI).
Additional nondominant species in adjacent uplands includes nootka rose (Rosa nutkana, FAC),
thimbleberry (Rubus parviflorus, FAC-), and sword fern (Pteridium aquilinum, FACU).
The soil of the uplands adjacent to Wetland J are not hydric being very dark brown (10YR 2/2)
with no redox features or concentrations. During the field investigation, soil was moist with no saturated
or standing water.
A summary of the typical upland area adjacent to Wetland J is provided in Table 3.
3.2.6 WETLAND N
Wetland N has a total area of 1,736 square feet and is just south of the Discovery Road and the
proposed Howard Street alignment (see Figure 3a) (see photo 13 in appendix D).
Wetland N is not shown on the National Wetlands Inventory (NWI) map. Data Plot DP15 was
recorded to characterize the vegetation, hydrology, and soils of Wetland N and is located near the edge of
the wetland by Discovery Road. Data Plot DP16 was recorded to describe the adjacent upland area (see
Appendix C).
3.2.6.1 Vegetation
Vegetation in Wetland N is dominated by hydrophytic vegetation. The dominant plant species in
Wetland J include:
• Scouler willow (Salix scouleriana, FAC)
• Douglas spirea (Spiraea douglassi, FACW).
Additional nondominant species in Wetland N includes snowberry (Symphoricarpos albus,
FACU), and slough sedge (Carex obnupta, OBL).
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3.2.6.2 Soils
The soil within Wetland N is characterized as low chroma, and was generally very dark gray
(10YR 3/1) silty sand from 0 to 8 inches. Below from 8 to 12 inches was dark grayish brown (2.5Y 4/2)
silty sand with brown (7.5YR 4/4) redox features.
3.2.6.3 Hydrology
The soil was moist at the time of the field investigation; with no saturation or standing water.
Additional primary hydrology indicators include water marks and drainage patterns. Hydrology for
Wetland N is primarily from surface runoff from the adjacent roads and upland areas.
3.2.6.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetland N. Landau Associates classified
Wetland N as a palustrine forested (PFO) depressional wetland (Cowardin 1979). At the time of the field
investigation, Wetland N was moist with no standing water or saturated soils.
Using the Ecology wetland rating form, Wetland N was rated as a Category IV wetland, scoring
highest for water quality functions and habitat, with a score of 14 and 10 respectively, hydrologic
functions were rated 5. A summary of Wetland N is provided in Table 3.
3.2.6.5 Upland Characterization
The upland area adjacent to Wetland N is characterized by Data Plot DP16 which satisfies two of
the three mandatory wetland criteria. Data Plot DP16 is located near the boundary of Wetland N.
Upland areas upslope from Wetland N likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland N consist mostly of forested areas. Vegetation in forested
uplands adjacent to Wetland N is dominated by:
• Douglas-fir (Pseudotsuga menziesii, FACU)
• Sitka willow (Salix sitchensis, FAC)
• Salal (Gaulthiera shallon, FACU)
• Douglas spirea (Spiraea douglassi, FACW).
Additional nondominant species in adjacent uplands includes nootka rose (Rosa nutkana, FAC),
and service berry (Amelanchier alnifolia, FACU).
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The soil of the uplands adjacent to Wetland N is hydric due to low chroma colors. They are very
dark grayish brown (10YR 3/2) sandy loam followed by brown (10YR 4/3) silty sand with brown (7.5YR
4/4) redox features. During the field investigation, soil was moist with no saturation or standing water.
A summary of the typical upland area adjacent to Wetland N is provided in Table 3.
3.2.7 WETLAND O
Wetland O is approximately 755 square feet, is located on Rainier Street near Wetlands N and J.
This wetland appears to be created as a large ditch/pool near the side of the street. Despite its origins, it
has hydric vegetation, hydrology, and was found to contain amphibian wildlife (see photo 14 in Appendix
D).
Wetland O is not shown on the National Wetlands Inventory (NWI) map. Data plot DP14 was
recorded to characterize the vegetation, hydrology, and soils of Wetland O and was located in the
wetland’s center. There was no specific data recorded to describe the adjacent upland area; however, due
to its location, the upland Data Plot DP16 from Wetland N was used for comparison (see Appendix C).
3.2.7.1 Vegetation
Vegetation in Wetland O is dominated by hydrophytic vegetation. The dominant plant species in
Wetland O include:
• Soft rush (Juncus effusus, FACW)
• Bentgrass (Agrostis stolonifera, FACW).
Additional nondominant species in Wetland O includes common velvet grass (Holcus lanatus, FAC), and
scouler willow (Salix scouleriana, FAC).
3.2.7.2 Soils
The soil within Wetland O is characterized as low chroma, and was generally dark grayish brown
(10YR 4/2) silty sand with few grayish brown (2.5Y 5/2) redox features from 0 to 8 inches. Below from 8
to 12 inches was dark grayish brown (10YR 4/2) silty sand with brown (7.5YR 4/4) redox features.
3.2.7.3 Hydrology
The soil was moist at the time of the field investigation with several inches of ponding adjacent to
the data plot. Additional primary hydrology indicators include water marks and drainage patterns.
Hydrology for Wetland O is primarily from surface runoff from the adjacent roads and upland areas.
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3.2.7.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetland O. Landau Associates classified
Wetland O as a palustrine emergent (PEM) depressional wetland (Cowardin 1979). At the time of the
field investigation, Wetland O had standing water in the lowest section of its depressional area.
Using the Ecology wetland rating form, Wetland O was rated as a Category IV wetland, scoring
highest for water quality and hydrologic functions, both with a score of 10, habitat functions were rated 9.
A summary of Wetland O is provided in Table 3.
3.2.7.5 Upland Characterization
The upland area adjacent to Wetland O is characterized by Data Plot DP16 which satisfies two of
the three mandatory wetland criteria. Data Plot DP16 is located south of Wetland O near Wetland N.
Upland areas upslope from Wetland O likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland N consist mostly of forested areas. Vegetation in forested
uplands adjacent to Wetland N is dominated by:
• Douglas-fir (Pseudotsuga menziesii, FACU)
• Sitka willow (Salix sitchensis, FAC)
• Salal (Gaulthiera shallon, FACU)
• Douglas spirea (Spiraea douglassi, FACW).
Additional nondominant species in adjacent uplands includes nootka rose (Rosa nutkana, FAC),
and service berry (Amelanchier alnifolia, FACU).
The soil of the uplands adjacent to Wetland O is hydric due to low chroma colors. They are very
dark grayish brown (10YR 3/2) sandy loam followed by brown (10YR 4/3) silty sand with brown (7.5YR
4/4) redox features. During the field investigation, soil was moist with no saturation or standing water.
A summary of the typical upland area adjacent to Wetland O is provided in Table 3.
3.2.8 WETLAND T
The area of Wetland T within the project area is approximately 12,936 square feet, near the end
of Howard Street at the southern end of the study area (see Figure 3a) (see photo 15 in Appendix D).
Wetland T was only delineated to the utility access road that bisects the southeast area of the wetland; due
to restricted access the inundated area on the east side of the road was not delineated. A culvert and
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potential seasonal flooding across the road connects the two areas (see photo 16 in Appendix D). Wetland
T is a depressional wetland that directly receives runoff from nearby roads and parking lots.
Wetland T is not shown on the National Wetlands Inventory (NWI) map. Data Plot DP20 was
recorded to characterize the vegetation, hydrology, and soils of Wetland T and is located near the edge of
the wetland. Data Plot DP21 was recorded to describe the adjacent upland area (see Appendix C).
3.2.8.1 Vegetation
Vegetation in Wetland T is dominated by hydrophytic vegetation. Due to restoration in this
wetland, some of the hydrophytic vegetation planted is not typically found in other local wetlands. The
dominant plant species in Wetland T include:
• Pacific willow (Salix lasiandra, FACW)
• Common cattails (Typha latifolia, OBL)
• Bluegrass (Poa pratensis, FAC)
• Tall fescue (Festuca arundinacea, FACU-)
• Soft rush (Juncus effusus, FACW).
Additional nondominant species found in Wetland T include black cottonwood (Populus
balsamifera, FAC), blackberry (Rubus ursinus, FACU), and velvet grass (Holcus lanatus, FAC).
3.2.8.2 Soils
The soil within Wetland T is characterized as low chroma, and was generally black (10YR 2/1)
sandy loam from 0 to 6 inches with very dark gray (10YR 3/1) sandy loam below from 6 to 16+ inches.
3.2.8.3 Hydrology
The soil was moist at the time of the field investigation with saturation at four inches below
ground surface and free water at nine inches below ground surface. There is ponding in the center of the
wetland with emergent vegetation. Hydrology for Wetland A is primarily from surface runoff from the
adjacent roads and parking lots.
3.2.8.4 Wetland Determination
All three mandatory wetland criteria are satisfied for Wetland T. Landau Associates classified
Wetland T as a palustrine emergent/palustrine forested (PEM/PFO) depressional wetland (Cowardin
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1979). At the time of the field investigation, there was ponded water and free water nine inches below
ground surface.
Using the Ecology wetland rating form, Wetland T is rated as a Category III wetland, scoring
highest for water quality functions and habitat, with a score of 16 and 15 respectively. Hydrologic
functions were rated with a score of 6. A summary of Wetland A is provided in Table 3.
3.2.8.5 Upland Characterization
The upland area adjacent to Wetland T is characterized by Data Plot DP21 which satisfies one of
the three mandatory wetland criteria. Data Plot DP21 is located near an upslope trail west of Wetland T.
Upland areas upslope from Wetland T likely contribute surface flow, but no primary hydrology
indicators were observed.
The uplands adjacent to Wetland T consist of a mix of forested, shrub, and grassy areas. Due to
restoration some of the upland vegetation at this site is not typically found in other nearby upland areas.
Vegetation in forested uplands adjacent to Wetland T is dominated by:
• Native blackberry (Rubus ursinus, FACU)
• Common vetch (Vicia satvia, UPL)
• Tall fescue (Festuca arundinacea, FACU-).
The soil of the uplands adjacent to Wetland T is hydric with low-chroma colors. They are dark
grayish brown (10YR 4/2) sandy loam followed by are light brownish gray (10YR 6/2) sandy loam with
dark yellowish brown (10YR 4/6) redox features. During the field investigation, soil was moist with no
saturated or standing water.
A summary of the typical upland area adjacent to Wetland T is provided in Table 3.
3.2.9 AREA B
Area B was investigated as a potential wetland and located next in the center of a rectangular
grassy meadow used agriculturally for grass and hay production (see Figure 3a). At the time of the
investigation, the meadow had not been mowed or disturbed. Area B is described by Data Plot DP6. This
area has been determined to be upland since it satisfies only one of the three mandatory wetland criteria.
Area B had no primary hydrology indicators and only had oxidized root channels in the upper 12
inches of soil as a secondary indicator. A wetland report by Alkai reported soil saturation at 2 inches in
this area on February 28, 2007 (Alkai 2007).
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The vegetation in Area B consists of primarily upland vegetation within a seasonally hayed field.
Vegetation in Area B is dominated by:
• Sweet vernal grass (Anthoxanthum odoratum, FACU)
• Kentucky fescue (Festuca arundinacea, FAC-)
• Tall buttercup (Ranunculus acris, FACW-).
Additional nondominant species includes common velvet grass (Holcus lanatus, FAC), black
bentgrass (Agrostis gigantea, FAC), creeping thistle (Cirsium arvense, FACU+), and tiny vetch (Vicia
hirsute, NI).
The soils in Area B are hydric due to low chroma colors. They are very dark grayish brown
(10YR 3/2) sandy loam with dark yellowish brown (10YR 4/4) oxidized rhizopheres from 0 to 8.5 inches
followed by gray (2.5Y 6/1) silty sand with brown (7.5YR 4/4) redox features from 8.5 to 12 inches.
During the field investigation, soil was moist with no saturated or standing water.
A summary of the Area B is provided in Table 3.
3.2.10 AREA D
Area D was investigated as a potential wetland and located next to Wetland C in a rectangular
grassy meadow used agriculturally for grass and hay production (see Figure 3a). At the time of the
investigation, the meadow had not been mowed or disturbed. Area D is described by Data Plot DP8. This
area has been determined to be upland since it satisfies only two of the three mandatory wetland criteria.
Area D had no primary hydrology indicators and only had oxidized root channels in the upper 12
inches of soil as a secondary indicator.
The vegetation in Area D consists of marginally hydrophytic vegetation within a seasonally
hayed field near a shrub boarder. Vegetation in Area D is dominated by:
• Black bentgrass (Agrostis gigantea, FAC)
• Sweet vernal grass (Anthoxanthum odoratum, FACU).
Additional nondominant species includes Kentucky fescue (Festuca arundinacea, FAC-), tall
buttercup (Ranunculus acris, FACW-), common vetch (Vicia sativa, UPL), tiny vetch (Vicia hirsute, NI).
The soils in Area D are hydric due to low chroma colors. They are very dark brown (10YR 2/2)
sandy loam with dark yellowish brown (10YR 4/4) oxidized rhizopheres from 0 to 8 inches followed by
dark grayish brown (2.5Y 4/2) silty sand with strong brown (7.5YR 4/6) redox features from 8 to 12
inches. During the field investigation, soil was moist with no saturated or standing water.
A summary of the Area D is provided in Table 3.
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3.2.11 AREA F
Areas F was investigated as a potential wetland and located near the eastern edge of the proposed
Howard Street alignment by a trailside ditch in a rectangular grassy meadow used agriculturally for grass
and hay production (see Figure 3a). At the time of the investigation, the meadow had not been mowed or
disturbed. Area F is described by Data Plot DP18. This area has been determined to be upland since it
satisfies only one of the three mandatory wetland criteria.
Area F had no primary or secondary hydrology indicators. It was reported by Alkai Consultants
that Area F had seasonal saturation and free water 3 inches below ground surface on March 1, 2007 but
was gone by May (Alkai 2007).
The vegetation in Area F consists of grassland areas within a seasonally hayed field near a shrub
boarder. Vegetation in Area F is dominated by:
• Sweet vernal grass (Anthoxanthum odoratum, FACU).
Additional nondominant species in adjacent areas includes common vetch (Vicia satvia, UPL),
tall fescue (Festuca arundinacea, FAC-), and English plantain (Plantago lanceolata, FAC) and field
forget-me-not (Myosotis arvensis, FAC).
The soils in Area F are hydric due to low chroma colors. They are very dark grayish brown
(10YR 3/2) from 0 to 8 inches followed by brown (10YR 4/3) sandy loam with brown (7.5YR 4/4) redox
features from 8 to 12 inches. During the field investigation, soil was moist with no saturated or standing
water.
A summary of Area F is provided in Table 3.
3.2.12 AREA G
Area G was investigated for potential wetland status and is characterized by data plot DP19,
which only satisfies two of the three mandatory wetland criteria. Data Plot19 is located in the center of
Area G, near the proposed Howard Street alignment (see Figure 3a).
There were no observed primary or secondary hydrology indicators. A wetland report by Alkai
indicates that on March 1, 2007 there was saturation and free water present at 7 inches below soil surface
within this area. The concluded this area to be upland due to a lack of hydrophytic vegetation (Alkai
2007).
The vegetation in Area G consists mostly of shrubs with herbaceous vegetation in the openings
and borders. Although it is dominated by hydrophytic vegetation with a FAC rating, the majority of non-
dominant species are upland. Vegetation in Area G is dominated by:
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• Nootka rose (Rosa nutkana, FAC)
• Bluegrass (Poa pretensis, FAC).
Additional nondominant species in adjacent forested uplands includes salal (Gaulthiera shallon,
FACU), snowberry (Symphoricarpos alba, FACU), trailing blackberry (Rubus ursinus, FACU), common
velvet grass (Holcus lanatus, FAC), cleavers bedstraw (Galium aparine, FACU), and dandelion
(Taraxacum officinale, FACU).
The soils of Area G are hydric due to their low chroma colors. From 1 to 6 inches they are very
dark brown (10YR 2/2) sandy loam, then grayish brown (2.5Y 5/2) silty sand with brown (7.5YR 4/4)
redox features from 6 to 12 inches. During the field investigation, soil was moist with no saturated or
standing water.
A summary of Area G is provided in Table 3.
3.2.13 AREA H
Area H was investigated as a potential wetland and located near the eastern edge of the proposed
Howard Street alignment by a trailside ditch in a rectangular grassy meadow used agriculturally for grass
and hay production (see Figure 3a). At the time of the investigation, the meadow had not been mowed or
disturbed. Area H is described by Data Plot DP9. This area has been determined to be upland since it
satisfies only one of the three mandatory wetland criteria.
Area H had no primary hydrology indicators and only oxidized root channels in the upper 12
inches of soil as a secondary indicator. Alkai Consultants were unable to collect information from Area H,
but reported seeing ponding on March 1, 2007 which was gone by May (Alkai 2007).
The vegetation in Area H consists of grassland areas within a seasonally hayed field near a shrub
boarder. Vegetation in Area H is dominated by:
• Sweet vernal grass (Anthoxanthum odoratum, FACU)
• Spotted cats-ear (Hypochaeris radicata, FACU).
Additional nondominant species in adjacent areas includes nootka rose (Rosa nutkana, FAC),
colonial bentgrass (Agrostis tenuis, FAC), tall fescue (Festuca arundinacea, FAC-), English plantain
(Plantago lanceolata, FAC), and creeping buttercup (Ranunculus acris, FACW-).
10/8/08 Y:\550\049.020\R\Port Townsend_rpt.doc LANDAU ASSOCIATES
3-20
The soils in Area H are hydric due to their low chroma colors. They are very dark brown (10YR
2/2) sandy loam with dark yellowish brown (10YR 4/4) oxidized rhizopheres from 0 to 6 inches and then
from 6 to 12 inches are dark grayish brown (2.5Y 4/2) silty sand with strong brown (7.5YR 4/6) redox
features. During the field investigation, soil was moist with no saturated or standing water.
A summary of the Area H are provided in Table 3.
10/8/08 Y:\550\049.020\R\Port Townsend_rpt.doc LANDAU ASSOCIATES
4-1
4.0 CONCLUSIONS
The Sims Way project has no impacts to any wetlands in the project area.
The Howard Street project impacts Wetland A, where the construction of the intersection with 6th
Street and Howard Street is planned. Impacts to Wetland A are estimated to be 12,697 square feet and
buffer impacts to Wetland A are estimated to be 64,998 square feet. All impacts shall be mitigated based
upon the requirement of the Port Townsend Code.
In addition to the impacts to wetland A, impacts will occur to other wetlands along the Howard
Street project (See Figure 4). The Howard Street realignment impacts approximately of 0.37 acres of
wetlands, which is less than ½ acre of wetland impacts. If the USACE does have jurisdiction of the
wetlands in the project area, the total wetland impacts are less than ½ an acre and would qualify under the
Nationwide Permit Program, NWP – 14 for linear transportation crossings. Wetland and buffer impacts
will be mitigated in compliance with the City of Port Townsend Municipal Code Section 19.05.110 –
Critical area 5 – Wetlands. The City is considering two areas for mitigation one of the areas is under
private ownership.
Once the jurisdictional determination is made by the USACE, a separate mitigation plan and
report will be completed for the Howard Street project, all wetland and buffer impacts will be mitigated
through either replacement, buffer enhancement, preservation or a combination of those methods as
allowed by the PTMC.
10/8/08 Y:\550\049.020\R\Port Townsend_rpt.doc 6-1 LANDAU ASSOCIATES
6.0 REFERENCES
Alkai Consultants, LLC. 2007. Howard Street Wetland Delineation and Analysis Report. Prepared for
City of Port Townsend, Department of Public Works. July 31.
Brinson, M. M. 1993. A Hydrogemorphic Classification for Wetlands. Technical Report WRP-DE-4,
U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and
Deepwater Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service,
Washington, D.C.
Ecology. 1997. Washington State Wetlands Identification and Delineation Manual. Publication No.
96-94. Washington State Department of Ecology. Olympia, Washington. March.
Greytag Macbeth. 1994. Munsell Soil Color Charts. New Windsor, New York.
Hruby, T. 2004. Washington State Wetland Rating System for Western Washington–Revised.
Publication No. 04-06-025. Washington State Department of Ecology. Olympia, Washington. August.
Loggy Soil and Wetland Consulting. 2005. Environmental Sensitive Wetland Area Study, Wetland
Delineation-Howard Street LID. Prepared for Port Townsend Public Works Department. May.
NRCS website. 2008a. Web Soil Survey. http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx.
Natural Resource Conservation Services. U.S. Department of Agriculture. Accessed May 21, 2008.
NRCS website. 2008b. Hydric Soils List. http://soils.usda.gov/use/hydric/. Natural Resources
Conservation Services. U.S. Department of Agriculture. Accessed May 21, 2008.
NRCS website. 2003. Field Indicators of Hydric Soils in the United States – Guide for Identifying and
Delineating Hydric Soils, Version 5.01. ftp://ftp-fc.sc.egov.usda.gov/NSSC/Hydric_Soils/
FieldIndicators_v5_01.pdf. Natural Resources Conservation Service, U.S. Department of Agriculture.
Accessed March 13, 2007.
Port Townsend Zoning Map. http://www.cityofpt.us/Publicworks/PDFs/Zone.pdf accessed August 11,
2008.
Reed, P.B., Jr. 1988, revised 1993. National List of Plant Species That Occur in Wetlands: Northwest
(Region 9). U.S. Fish & Wildlife Service Biological Report 88 (26.9). Washington, D.C.
USACE. 2008. Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual:
Western Mountains, Valleys, and Coast Region. April.
USACE. 1994. Washington Regional Guidance on the 1987 Wetland Delineation Manual. U.S. Army
Corps of Engineers, Seattle District Regulatory Branch. May 23.
USACE. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. U.S.
Army Corps of Engineers, Waterways Experiment Station. Vicksburg, Mississippi. March.
10/8/08 Y:\550\049.020\R\Port Townsend_rpt.doc 6-2 LANDAU ASSOCIATES
USFWS. 1987. National Wetland Inventory. U.S. Fish and Wildlife Service. http://www.fws.gov/nwi/.
Accessed May 21, 2008.
WDNR website. 2008. Sections that Contain Natural Heritage Features Associated with Wetlands, Data
Current as of October 31, 2007. http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf.
Washington National Heritage Program. Washington State Department of Natural Resources. Accessed
May 21, 2008.
Page 1 of 1
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Page 1 of 1
TABLE 2
WETLAND DELINEATION SUMMARY
10/13/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb2.doc LANDAU ASSOCIATES
Appendix F provides maps for each wetland showing Wetland Flags and Data Plots
System
Classification
(Cowardin/HGM)
Ecology
Rating
(Score
1-100)
Ecology
Category
Buffer Width
(in feet per PTMC – Use = High)
Wetland
Impacts Square
Feet (SF)
Buffer Impacts
Square Feet (SF)
Wetland
A
PFO/Depression 36 III 80 12,697 64,998
Wetland
C
PEM/Depression 28 IV 50 1,130 14,878
Wetland
E
PEM/Depression 29 IV Wetland is smaller than 1,000 SF,
therefore not regulated by PTMC
Not regulated by
PTMC
Not regulated by
PTMC
Wetland
I
PSS/Depression 27 IV 50 462 5,753
Wetland
J
PFO/PSS/Depression 30 III 80 222 3,795
Wetland
N
PFO/Depression 29 IV 50 740 19,366
Wetland
O
PEM/Depression 29 IV Wetland is smaller than 1,000 SF,
therefore not regulated by PTMC
Not regulated by
PTMC
Not regulated by
PTMC
Wetland
T
PEM/PFO/Depression 37 III 60 0 0
Key
PFO = Palustrine Forested
PEM = Palustrine Emergent
PSS = Palustrine Scrub-Shrub
Page 1 of 5
TABLE 3
SUMMARY OF CHARACTERISTICS OF WETLANDS AND UPLANDS
10/8/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb3.doc LANDAU ASSOCIATES
SUMMARY OF WETLAND A
Wetland Classification PFO (Cowardin) Depression (HGM)
Approximate Size of Wetland 12,697 square feet (entire wetland)
Hydrology Indicator(s) Water marks, sediment deposits, drainage patterns in wetlands
Hydric Soils? Yes (see data plot DP2 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP2 in Appendix D)
Rating and Buffer Width Score = 36 (Ecology Category III), requiring a 80-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality, moderately provides important habitat for
many species, to a lesser extent reduces flooding and erosion (see wetland rating form
Wetland A in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND A
Hydrology Indicator No primary indicators, one secondary indicator of oxidized root channels in upper 12
inches (see data plot DP1, DP3 and DP5 in Appendix D)
Hydric Soils? Yes (see data plot DP1, DP3 and DP5 in Appendix D)
% Hydrophytic Vegetation 0 - 66% (see data plot DP1, DP3 and DP5 in Appendix D)
SUMMARY OF WETLAND C
Wetland Classification PEM (Cowardin) Depression (HGM)
Approximate Size of Wetland 1,130 square feet (entire wetland)
Hydrology Indicator(s) Oxidized root channels in upper 12 inches, FAC-Neutral test
Hydric Soils? Yes (see data plot DP7 in Appendix D)
% Hydrophytic Vegetation 50% (see data plot DP7 in Appendix D)
Rating and Buffer Width Score = 28 (Ecology Category IV), requiring a 50-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality and to a much lesser extent reduces flooding
and erosion and provides habitat for many species (see wetland rating form Wetland C
in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND C
Hydrology Indicator No primary indicators, one secondary indicator of oxidized root channels in upper 12
inches (see data plot DP8 in Appendix D)
Hydric Soils? Yes (see data plot DP8 in Appendix D)
% Hydrophytic Vegetation 50% (see data plot DP8 in Appendix D)
Page 2 of 5
TABLE 3
SUMMARY OF CHARACTERISTICS OF WETLANDS AND UPLANDS
10/8/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb3.doc LANDAU ASSOCIATES
SUMMARY OF WETLAND E
Wetland Classification PEM (Cowardin) Depression (HGM)
Approximate Size of Wetland 237 square feet (entire wetland)
Hydrology Indicator(s) Oxidized root channels in upper 12 inches, FAC-Neutral test
Hydric Soils? Yes (see data plot DP17 in Appendix D)
% Hydrophytic Vegetation 75% (see data plot DP17 in Appendix D)
Rating and Buffer Width Score = 29 (Ecology Category IV), requiring a 50-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality and to a much lesser extent reduces flooding
and erosion and provides habitat for many species (see wetland rating form Wetland E
in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND E
Hydrology Indicator No primary indicators, one secondary indicator of oxidized root channels in upper 12
inches (see data plot DP8 in Appendix D)
Hydric Soils? Yes (see data plot DP8)
% Hydrophytic Vegetation 50% (see data plot DP8)
SUMMARY OF WETLAND I
Wetland Classification PSS (Cowardin) Depression (HGM)
Approximate Size of Wetland 11,159 square feet (entire wetland)
Hydrology Indicator(s) Water marks
Hydric Soils? Yes (see data plot DP11 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP11 in Appendix D)
Rating and Buffer Width Score = 27 (Ecology Category IV), requiring a 50-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality and to a much lesser extent reduces flooding
and erosion and provides habitat for many species (see wetland rating form Wetland I in
Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND I
Hydrology Indicator No indicators (see data plot DP10 in Appendix D)
Hydric Soils? Yes (see data plot DP10 in Appendix D)
% Hydrophytic Vegetation 75% (see data plot DP10 in Appendix D)
Page 3 of 5
TABLE 3
SUMMARY OF CHARACTERISTICS OF WETLANDS AND UPLANDS
10/8/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb3.doc LANDAU ASSOCIATES
SUMMARY OF WETLAND J
Wetland Classification PFO/PSS (Cowardin) Depression (HGM)
Approximate Size of Wetland 3,846 square feet (entire wetland)
Hydrology Indicator(s) Water marks, drainage patterns in wetlands
Hydric Soils? Yes (see data plot DP12 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP12 in Appendix D)
Rating and Buffer Width Score = 30 (Ecology Category III), requiring a 80-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality, moderately provides important habitat for
many species, to a lesser extent reduces flooding and erosion (see wetland rating form
Wetland J in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND J
Hydrology Indicator No indicators (see data plot DP13 in Appendix D)
Hydric Soils? None (see data plot DP13 in Appendix D)
% Hydrophytic Vegetation 33% (see data plot DP13 in Appendix D)
SUMMARY OF WETLAND N
Wetland Classification PFO (Cowardin) Depression (HGM)
Approximate Size of Wetland 1,736 square feet (entire wetland)
Hydrology Indicator(s) Water marks, drainage patterns in wetlands
Hydric Soils? Yes (see data plot DP15 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP15 in Appendix D)
Rating and Buffer Width Score = 29 (Ecology Category IV), requiring a 50-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality, moderately provides important habitat for
many species, to a lesser extent reduces flooding and erosion (see wetland rating form
Wetland N in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND N
Hydrology Indicator No indicators (see data plot DP16 in Appendix D)
Hydric Soils? Yes (see data plot DP16 in Appendix D)
% Hydrophytic Vegetation 50% (see data plot DP16 in Appendix D)
Page 4 of 5
TABLE 3
SUMMARY OF CHARACTERISTICS OF WETLANDS AND UPLANDS
10/8/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb3.doc LANDAU ASSOCIATES
SUMMARY OF WETLAND O
Wetland Classification PEM (Cowardin) Depression (HGM)
Approximate Size of Wetland 755 square feet (entire wetland)
Hydrology Indicator(s) Water marks, sediment deposits, drainage patterns in wetlands
Hydric Soils? Yes (see data plot DP14 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP14 in Appendix D)
Rating and Buffer Width Score = 29 (Ecology Category IV), requiring a 50-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality and reduces flooding and erosion, to a lesser
extent provides important habitat for many species (see wetland rating form Wetland O
in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND O
Hydrology Indicator No indicators (see data plot DP16 in Appendix D)
Hydric Soils? Yes (see data plot DP16 in Appendix D)
% Hydrophytic Vegetation 50% (see data plot DP16 in Appendix D)
SUMMARY OF WETLAND T
Wetland Classification PEM/PFO (Cowardin) Depression (HGM)
Approximate Size of Wetland 12,936 square feet (within project area)
Hydrology Indicator(s) Saturation in upper 12 inches
Hydric Soils? Yes (see data plot DP20 in Appendix D)
% Hydrophytic Vegetation 80% (see data plot DP20 in Appendix D)
Rating and Buffer Width Score = 37 (Ecology Category III), requiring a 80-foot buffer in accordance with Port
Townsend Municipal Code.
Principal Functions Primary function is improving water quality, moderately provides important habitat for
many species, to a lesser extent reduces flooding and erosion (see wetland rating form
Wetland T in Appendix E).
SUMMARY OF UPLAND ADJACENT TO WETLAND T
Hydrology Indicator No indicators (see data plot DP21 in Appendix D)
Hydric Soils? Yes (see data plot DP21 in Appendix D)
% Hydrophytic Vegetation 0% (see data plot DP21 in Appendix D)
Page 5 of 5
TABLE 3
SUMMARY OF CHARACTERISTICS OF WETLANDS AND UPLANDS
10/8/08 Y:\550\049.020\R\Tables\Wetland Delineation_tb3.doc LANDAU ASSOCIATES
SUMMARY OF UPLAND AREA B
Hydrology Indicator Oxidized root channels in upper 12 inches (see data plot DP6 in Appendix D)
Hydric Soils? Yes (see data plot DP6 in Appendix D)
% Hydrophytic Vegetation 33% (see data plot DP6 in Appendix D)
SUMMARY OF UPLAND AREA D
Hydrology Indicator Oxidized root channels in upper 12 inches (see data plot DP8 in Appendix D)
Hydric Soils? Yes (see data plot DP8 in Appendix D)
% Hydrophytic Vegetation 50% (see data plot DP8 in Appendix D)
SUMMARY OF UPLAND AREA F
Hydrology Indicator None (see data plot DP18 in Appendix D)
Hydric Soils? Yes (see data plot DP18 in Appendix D)
% Hydrophytic Vegetation 0% (see data plot DP18 in Appendix D)
SUMMARY OF UPLAND AREA G
Hydrology Indicator None (see data plot DP19 in Appendix D)
Hydric Soils? Yes (see data plot DP19 in Appendix D)
% Hydrophytic Vegetation 100% (see data plot DP19 in Appendix D)
SUMMARY OF UPLAND AREA H
Hydrology Indicator Oxidized root channels in upper 12 inches (see data plot DP9 in Appendix D)
Hydric Soils? Yes (see data plot DP9 in Appendix D)
% Hydrophytic Vegetation 0% (see data plot DP9 in Appendix D)
APPENDIX A
Background Information Review Figures
T
A
X
3
5
10TH STREET
12TH
SP
R
I
N
G
STREET
HO
O
D
12TH
BA
K
E
R
RA
I
N
I
E
R
SH
A
S
T
A
STREET
HO
W
A
R
D
STREET
CL
I
F
F
Mc
P
H
E
R
S
O
N
STREET
STREET
G
L
E
N
C
O
V
E
R
D
.
IV
Y
ST
R
E
E
T
DIS
C
O
V
E
R
Y
RO
A
D
SR
20
SP
R
I
N
G
S
T
.
5TH STREET
IV
Y
ST
R
E
E
T
STREET
STREET
SP
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P P P
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( FEET )
SCALE
0100 50 200100
Sims Way / Howard Street
Improvements
City of Port Townsend April 6, 2008
PROJECT KEY MAP
Legend
Identified Wetlands
Project Area
Stormwater Features
1 INCH =FT100
20
7TH ST
9TH ST
HOWARD ST
W SIM S W AY
DISCOVERY BAY RD
HOOD ST
S PARK AVECmC
514200
514200
514260
514260
514320
514320
514380
514380
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514440
514500
514500
5327700
5327700
5327760
5327760
5327820
5327820
5327880
5327880
5327940
5327940
5328000
5328000
5328060
5328060
5328120
5328120
0 300 600 900150Feet07014021035Meters
Soil Map–Jefferson County Area, Washington
Natural ResourcesNatural ResourcesNatural ResourcesNatural ResourcesConservation ServiceConservation ServiceConservation ServiceConservation Service Web Soil Survey 2.0National Cooperative Soil Survey 6/27/2008Page 1 of 3
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Units
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Gully
Short Steep Slope
Other
Political Features
Municipalities
Cities
Urban Areas
Water Features
Oceans
Streams and Canals
Transportation
Rails
Roads
Interstate Highways
US Routes
State Highways
Local Roads
Other Roads
Original soil survey map sheets were prepared at publication scale.
Viewing scale and printing scale, however, may vary from the
original. Please rely on the bar scale on each map sheet for proper
map measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov
Coordinate System: UTM Zone 10N
This product is generated from the USDA-NRCS certified data as of
the version date(s) listed below.
Soil Survey Area: Jefferson County Area, Washington
Survey Area Data: Version 5, Sep 5, 2007
Date(s) aerial images were photographed: 6/21/1990
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
Soil Map–Jefferson County Area, Washington
Natural Resources
Conservation Service
Web Soil Survey 2.0
National Cooperative Soil Survey
6/27/2008
Page 2 of 3
Map Unit Legend
Jefferson County Area, Washington (WA631)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CmC Clallam gravelly sandy loam, 0
to 15 percent slopes
22.0 100.0%
Totals for Area of Interest (AOI)22.0 100.0%
Soil Map–Jefferson County Area, Washington
Natural Resources
Conservation Service
Web Soil Survey 2.0
National Cooperative Soil Survey
6/27/2008
Page 3 of 3
Howard Street Project Area
Port Townsend Environmentally Sensitive Areas Map
City of Port Townsend
Drainage Basin Map
APPENDIX B
Soil Profile Reports
LOCATION CLALLAM WA
Established Series
Rev. LJH/RJE/MPR/SBC
02/2004
CLALLAM SERIES
The Clallam series consists of moderately deep to densic materials, moderately well
drained soils formed in glacial till over very compact glacial till. These soils are on
glaciated hills and have slopes of 0 to 30 percent. The average annual precipitation is
about 23 inches and the mean annual temperature is about 48 degrees F.
TAXONOMIC CLASS: Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts
TYPICAL PEDON: Clallam gravelly ashy sandy loam - forested. (Colors are for moist
soil unless otherwise noted. All textures are apparent field textures.)
Oi--0 to 1 inch; slightly decomposed needles, leaves, and twigs.
Oe--1 to 2 inches; moderately decomposed needles, leaves, and twigs.
A--2 to 3 inches; brown (10YR 4/3) gravelly ashy sandy loam, light brownish gray
(10YR 6/2) dry; weak fine and very fine granular structure parting to weak very fine
subangular blocky; slightly hard, friable, slightly sticky and nonplastic; many fine and
very fine roots; many fine and very fine irregular and tubular pores; 15 percent gravel;
strongly acid (pH 5.2); abrupt smooth boundary. (1 to 4 inches thick)
Bw1--3 to 12 inches; brown (10YR 5/3) gravelly ashy sandy loam, light gray (2.5Y 7/2)
dry; common medium distinct dark yellowish brown (10YR 4/4) redox concentrations,
very pale brown (10YR 7/4) dry; weak fine and very fine subangular blocky structure;
hard, friable, nonsticky and nonplastic; many fine and very fine and common medium
roots; many fine and very fine irregular and tubular pores; 20 percent gravel and 5
percent cobbles; strongly acid (pH 5.4); clear smooth boundary. (3 to 14 inches thick)
Bw2--12 to 30 inches; brown (10YR 5/3) very gravelly ashy sandy loam, light gray (2.5Y
7/2); common medium distinct dark yellowish brown (10YR 4/4) redox concentrations,
very pale brown (10YR 7/4) dry; weak fine and very fine subangular blocky structure;
hard, firm, nonsticky and nonplastic; common fine and very fine, and few medium roots;
many very fine irregular and common very fine tubular pores; 35 percent gravel and 10
percent cobbles; strongly acid (pH 5.4); clear wavy boundary. (7 to 18 inches thick)
Cd1--30 to 39 inches; light brownish gray (2.5Y 6/2) dense glacial till that crushed to
very gravelly sandy loam, light gray (2.5Y 7/2) dry; common medium distinct strong
brown (7.5YR 5/6) redox concentrations, reddish yellow (7.5YR 6/6) dry; massive; very
hard, very firm, slightly sticky and nonplastic; few very fine irregular and common very
fine tubular pores; 30 percent gravel and 5 percent cobbles; strongly acid (pH 5.4); clear
wavy boundary. (7 to 19 inches thick)
Cd2--39 to 62 inches; grayish brown (2.5Y 5/2) dense glacial till that crushes to very
gravelly loam, light gray (2.5Y 7/2) dry; massive; very hard, very firm, slightly sticky
and slightly plastic; few very fine irregular pores; 30 percent gravel and 10 percent
cobbles; moderately acid (pH 6.0).
TYPE LOCATION: Clallam County, Washington; 4,000 feet south and 600 feet east of
the northwest corner of sec. 24, T. 30 N., R. 5 W. Willamette Meridian.
RANGE IN CHARACTERISTICS:
Depth to densic contact - 20 to 40 inches
Moisture control section - dry 60 to 90 days following the summer solstice
Average annual soil temperature - 49 to 51 degrees F.
Reaction - strongly acid to slightly acid
A horizon -
Value - 3 or 4 moist, 4 to 6 dry
Chroma - 2 to 3 moist and dry
Texture - ashy-SL, ashy-L
Clay content - 3 to 18 percent
Rock fragments - 15 to 35 percent gravel, 0 to 20 percent cobbles, 15 to 35 percent total
Some pedons have an E horizon
Bw horizons -
Hue - 7.5YR to 2.5 Y
Value - 3 to 5 moist, 4 to 7 dry
Chroma - 3 or 4 moist, 2 to 4 dry
Texture - ashy-SL, ashy-L
Clay content - 3 to 18 percent
Rock fragments - 15 to 50 percent gravel, 5 to 20 percent cobbles, 35 to 60 percent total
Some pedons have a C horizon
Cd horizons -
Hue - 7.5YR to 2.5Y
Value - 5 or 6 moist, 4 to 7 dry
Chroma - 2 or 3 moist and dry
Texture - SL, L, FSL
Clay content - 5 to 25 percent
Rock fragments - 15 to 50 percent gravel, 0 to 10 percent cobbles, 15 to 60 percent total
COMPETING SERIES: These are the Dehart, Macreeing, Mcguire, Olete, Stutler, and
Tukey series. Dehart, Mcguire, and Stutler soils are more than 40 inches deep. Macreeing
and Olete soils have a lithic contact at 20 to 60 inches. Tukey soils average 20 to 30
percent clay in the particle size control section.
GEOGRAPHIC SETTING: Clallam soils are on glaciated hills at elevations of 25 to
1,800 feet. Slopes are 0 to 30 percent. Clallam soils formed in glacial till over very
compact dense glacial till. The soils are in a mild marine climate and have cool, dry
summers and cool, moist winters. Average annual precipitation is 16 to 30 inches.
Average January temperature is about 37 degrees F, average July temperature is about 59
degrees F, and the mean annual temperature is about 48 degrees F. Frost-free season is
160 to 220 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Agnew, Bellingham,
Catla, Elwha, Hoypus, McKenna, Yeary, and Louella soils. Agnew soils have an argillic
horizon and are somewhat poorly drained. Bellingham soils have an aquic moisture
regime and a fine particle-size class. Catla soils are loamy and have a densic contact at 10
to 20 inches. Elwha soils are coarse-loamy. Hoypus soils are sandy-skeletal. Louella soils
are coarse-loamy and have a mollic epipedon. McKenna soils have an aquic moisture
regime. Yeary soils are fine-loamy.
DRAINAGE AND PERMEABILITY: Moderately well drained; moderately rapid
permeability above the very compact glacial till (A and Bw horizons) and very slow
permeability in the very compact glacial till (Cd horizons).
USE AND VEGETATION: Timber production and wildlife are the principal uses.
Some areas are used for cropland and pasture. Native vegetation is predominantly
Douglas-fir with some western hemlock, grand fir, western redcedar, red alder, and
Pacific madrone. Understory species include salal, evergreen huckleberry, red
huckleberry, Oregongrape, creambush oceanspray, longtube twinflower, rose, blackberry,
western swordfern, and western brackenfern. Principal crops are alfalfa and grass hay,
barley, oats, strawberries, raspberries, and pasture.
DISTRIBUTION AND EXTENT: Northeastern Olympic Peninsula and Puget Sound
Valleys, Washington; MLRA 2. This series is moderately extensive.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Western part of Puget Sound Basin, Washington,
Reconnaissance Soil Survey, 1910
REMARKS: Diagnostic horizons and other features
Ochric epipedon - from 2 to 3 inches
Cambic horizon - from 3 to 30 inches
Densic material - from 30 to 62 inches
Particle size control section - 10 to 30 inches (Bw horizons)
Additional data needed for base saturation and volcanic ash influence to distinguish
Clallam series and Whidbey series.
ADDITIONAL DATA: National Soil Survey Laboratory, Sample numbers--S77WA 9-
2-2, S77WA 9-2-3, S77WA 9-2-4, S77WA 9-2-5.
National Cooperative Soil Survey
U.S.A.
Jefferson County Area, Washington Version date: 9/5/2007 9:02:29 AM
CmC—Clallam gravelly sandy loam, 0 to 15 percent slopes
Map Unit Setting
• Mean annual precipitation: 23 inches
• Mean annual air temperature: 48 degrees F
• Frost-free period: 160 to 200 days
Map Unit Composition
• Clallam and similar soils: 100 percent
Description of Clallam
Setting
• Parent material: Basal till
Properties and qualities
• Slope: 0 to 15 percent
• Depth to restrictive feature: 20 to 40 inches to dense material
• Drainage class: Well drained
• Capacity of the most limiting layer to transmit water (Ksat): Very low to
moderately low (0.00 to 0.06 in/hr)
• Depth to water table: About 18 to 36 inches
• Frequency of flooding: None
• Frequency of ponding: None
• Available water capacity: Very low (about 1.9 inches)
Interpretive groups
• Land capability classification (irrigated): 6s
• Land capability (nonirrigated): 4s
Typical profile
• 0 to 3 inches: Gravelly sandy loam
• 3 to 23 inches: Very gravelly sandy loam
• 23 to 60 inches: Gravelly sandy loam
APPENDIX C
Wetland Data Sheets
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 1
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Potential seasonal wetland
VEGETATION Indica
tor Statum %Cover Dominant?
1FACUTree20Yes
2FACShrub50Yes
3FACShrub20Yes
4 Symphoricarpus albus FACUShrub10No
5FACUHerb15No
6 Festuca arundinacea FAC-Herb10No
7 Trifolium repens FACHerbTNo
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):66
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A fine sand with silt, mod.dense, granular
A fewfinefaintfine sand with silt, mod.dense, granular
B fewfinedistinctfine sand with silt, mod.dense, granular
B sandy loam, blocky
B sandy loam, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is this Sampling Point Within a Wetland?No
Remarks:
2.5 YR 4/4
none
none
10 YR 3/3
10 YR 3/3
Near edge of Wetland A, alongside Howard Street
5/21/2008
none
7.5 YR 4/4; 10 YR 5/1
Wetland vegetation very marginal due to non-dominant vegetation classified as non-wet. Data plot satisfies hydrophytic vegetation
criterion.
Notes
Pseudotsuga menziesii
Scientific Name
10 YR 2/2
10 YR 2/2
0-3
3-6
6-7
7-13
Matrix Color (Moist)
Rosa nutkana
Dactylis glomerata
RMF ColorDepth (inches)
Soil moist but not saturated in upper 16+ inches. Data plot does not satisfy hydrology criterion.
percent
Data satisfies hydric soils criteria.
Data plot satisfies two of the three mandatory wetland criterion. The data plot is classified as upland.
Salix scouleriana
10 YR 3/313-16+
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland A, PFO
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 2
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation: Seasonal wetland
VEGETATION
Indicator Statum %Cover Dominant?
1 Rosa nutkana FACShrub30Yes
2 Salix scouleriana FACShrub15No
3 Symphoricarpos albus FACUShrub10No
4 Spiraea douglasii FACWShrubTNo
5 Carex deweyana FACUHerb5No
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XOtherAlkai report, July 2007XWater MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
XSediment DepositsOther (explain in remarks)
Field Observations:XDrainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam, granular
A fewfineProminentsandy loam, dense, granular
B fewfineProminentsandy loam, dense, granular
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is this Sampling Point Within a Wetland?Yes
Remarks:
Data plot satisifies hydric soil criterion.
Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category III depressional wetland.
13+2.5 Y 6/27.5 YR 4/4
0-5.510 YR 2/1none
5.5-132.5 Y 6/27.5 YR 4/4 , 10 YR 2/1
percent
Depth (inches)Matrix Color (Moist)RMF Color
Moist in upper 24+ inches. Previous report by Alkai indicate area inundated on 2/28/2007. Data plot satisfies hydrology criterion.
saplings
5/21/2008
Near edge of Wetland A, alongside Howard Street
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 3
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation: Potential seasonal wetland
VEGETATION Indicato
r Statum %Cover Dominant?
1FACTree25Yes
2FACUShrub25Yes
3NIShrub15No
4FACUShrub10No
5 Gaultheria shallon FACUShrub10No
6 Rosa nutkana FACShrub10No
7 Rubus parviflorus FAC-Shrub5No
8FACUherb5No
9 Carex deweyana FACUherb5No
10
% Dominant Species that are OBL, FACW or FAC (excluding FAC-):50
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is this Sampling Point Within a Wetland?No
Remarks:
similar to DP 2 - not characterized in detail.
Soil description similar to Data Plot 2. Data plot satisfies hydric soils criterion.
Data plot satisfies one of the three mandatory wetland criteria. The data plot is classified as upland.
percent
Depth (inches)Matrix Color (Moist)RMF Color
Due to the lack of hydorlogy and number of non-dominant plant species classified as non-wet, the data plot does not satisfy
hydrophytic vegetation criterion.
Soil is moist, not saturated, in the upper 12 inches. Data plot does not satisfy hydrology criterion.
Pteridium aquilinum
Salix Scouleriana
Rubus discolor
Symphoricarpos albus
Holodiscus discolor
5/21/2008
Near western edge of Wetland A
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 4
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1 Vicia sativa UPLHerb50Yes
2 Anthoxanthum odoratum FACU Herb40Yes
3 Festuca arundinacea FAC-Herb15No
4 Myosotis arvensis FACHerbTNo
5FACHerbTNo
6NIHerbTNo
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):0
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A commonvery finDistinctsandy loam, granular
B fewfine to mDistinctsilty sand, blocky, dense, concretions
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:
Depression in field
Data plot satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
0-2010 YR 3/2 to 3/1Ox.Rhizos 10YR 4/4
20+2.5 Y 6/1 to 6/27.5YR 4/4 to 10YR 4/3
Soil moist but not saturated. Data plot does not satisfy hydrology criterion.
Depth (inches)Matrix Color (Moist)RMF Color
percent
Scientific Name Notes
Data plot satisfies hydric soils criterion.
5/21/2008
Holcus lanatus
Vicia hirsuta
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 5
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1 Anthoxanthum odoratum FACU Herb60Yes
2 Holcus lanatus FACHerb15No
3FACW-Herb15No
4UPLHerb15No
5 Festuca arundinacea FAC-Herb10No
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):0
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A fewvery fineDistinctsandy loam, granular
B7.5YR 4/4 to 10 YR 4/3 fewfine-medDistinctsilty sand, blocky, dense, concretions
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:
Adjancent to Wetland A, in low, sloping area
Data plot satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
Ranunculus acris
0-910 YR 3/2 to 3/1Ox.Rhizos 10YR 4/4
9-12+2.5 Y 6/1 to 6/2
percent
Soil moist but not saturated. Data plot does not satisfy hydrology criterion.
Depth (inches)Matrix Color (Moist)RMF Color
Scientific Name Notes
Data plot satisfies hydric soils criterion.
5/21/2008
Vicia sativa
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 6
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1FACU Herb25Yes
2 Festuca arundinacea FAC-Herb20Yes
3FACW-Herb20Yes
4FACHerb10No
5NIHerb10No
6FACU+Herb3No
7NIHerbTNo
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):33
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
xOtherAlkai report, July 2007Water MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A commonvery finDistinctsandy loam, granular
B7.5YR 4/4 to 10 YR 4/3 fewfineDistinctsilty sand, blocky, dense
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:
Middle of depression in field in Area B with "wettest"
vegetation community
Anthoxanthum odoratum
Ranunculus acris
Cirsium arvense
Holcus lanatus
Data plot satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
0-8.510 YR 3/2 to 3/1Ox.Rhizos 10YR 4/4
8.5-12+2.5 Y 6/1 to 6/2
Data plot satisfies hydric soils criterion.
Soil moist but not saturated. Previous report by Alkai indicate area saturation at 2 inches on 2/28/2007
Depth (inches)Matrix Color (Moist)RMF Color
percent
Vicia hirsuta
5/21/2008
Agrostis gigantea
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland C, PEM
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 7
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1 Crataegus douglasii FACShrubTNosmall
2 Phalaris arundinacea FACWHerb40Yes
3 Festuca arundinacea FAC-Herb30Yes
4 Myosotis arvensis FACHerb15No
5 Carex pachystachya FACHerb10No
6 Vicia hirsuta NIHerb10No
7 Plantago lanceolata FACHerbTNo
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):50
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesXFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A fewvery findistinctfine sandy loam, granular
B 40%mediumprominentsilty sand, blocky, dense
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category IV depressional wetland.
Data plot satisfies hydric soils criterion.
0-710 YR 2/2Ox.Rhizos 10YR 4/4
7-12+2.5 Y 4/27.5YR 4/6 (mid range)
percent
Soils moist but not saturated. Data plot satisfies hydrology criterion.
Depth (inches)Matrix Color (Moist)RMF Color
Change in vegetation from upland apparent. Due to hydrology and number of non-dominant wetland plant species the data plot
satisfies hydrophytic vegetation criterion.
5/21/2008
Scientific Name Notes
Middle of depression in field in Wetland C with
"wettest" vegetation community
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 8
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1FACShrubTNo
2FACHerb40Yes
3FACU Herb20Yes
4FAC-Herb10No
5FACW-Herb5No
6 Vicia sativa UPLHerb5No
7NIHerbTNo
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):50
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
Hor.Abundance Size Contrast Soil Description, Texture, Structure
A fewvery findistinctfine sandy loam, granular
B 40%mediumprominentsilty sand, blocky, dense
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:Data plot satisfies two of the three mandatory wetland criterion. The data plot is classified as upland.
Data plot satisfies hydric soils criterion.
0-810 YR 2/2Ox.Rhizos 10YR 4/4
8-12+2.5 Y 4/27.5YR 4/6 (mid range)
percent
Data plot does not satisfy hydrology criterion.
Depth (inches)Matrix Color (Moist)RMF Color
Wetland vegetation is marginal. Data plot satisfies hydrophytic vegetation criterion.
Anthoxanthum odoratum
Vicia hirsuta
Ranunculus acris
Festuca arundinacea
Agrostis gigantea
Rosa nutkana
5/21/2008
Scientific Name Notes
Middle of depression in field in Area D with "wettest"
vegetation community
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 9
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Seasonally hayed, vegetation currently undisturbed.
Is Site a Potential Problem Area?No
VEGETATION Indicato
r Statum %Cover Dominant?
1 Rosa nutkana FACShrub15No
2 Anthoxanthum odoratum FACU Herb60Yes
3 Hypochaeris radicata FACUHerb20Yes
4 Agrostis tenuis FACHerb10No
5 Festuca arundinacea FAC-Herb10No
6 Plantago lanceolata FACHerb10No
7 Ranunculus acris FACW-Herb1No
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):0
Remarks:Rosa nutkana colonizing from edge.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XOtherAlkai report, July 2007Water MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A fewvery findistinctsandy loam, granular
B 40%mediumprominent
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:Area was considered a wetland in Alkai report due to ponding viewed from distance but no data plots were conducted. Data plot
satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
silty sand, blocky, very dense, few
rounded gravels
0-610 YR 2/2Ox.Rhizos 10YR 4/4
6-12+
Data plot satisfies hydric soils criterion.
2.5 Y 4/27.5YR 4/6 (mid range)
percent
Data plot does not satisfy hydrophytic vegetation criterion.
Depth (inches)Matrix Color (Moist)RMF Color
Remarks: Soil moist but not saturated. Alkia report had no recorded data, but stated ponding on 7/28/07 from distance, gone by 5/16/07. Data plot does
not satisfy hydrology criterion.
5/21/2008
Scientific Name Notes
Middle of depression in field in Area H with "wettest"
vegetation community
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 10
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Potential seasonal wetland area
VEGETATION Indicat
or Statum %Cover Dominant?
1FACShrub100Yes
2FACUShrub20Yes
3 Carex pachystachya FACHerb50Yes
4 Agrostis spp (?)FACHerb25Yes
5 Pteridium aquilinum FACUHerb5No
6 Taraxacum officinale FACUHerbTNo
7 Ranunculus repens FACWHerbTNo
8
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):75
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XWater MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam, granular, wood, worms
B commonmed.prominentsity sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:Data plot satisfies two of the three mandatory wetland criterion. The data plot is classified as upland.
Data plot satisfies hydric soils criterion.
1-610 YR 2/2none
6-12+2.5 YR 5/27.5 YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Remarks: Symphoricarpos albus outside of plot. Agrostis sp. Was not identifiable to species due to lack of inflorescence or other indistinguishable
features. Genus of this species are generally FAC or wetter. Data plot satisfies hydrophytic vegetation criterion.
Other: Loggy Soil and Wetland Consulting 5/05
Remarks: Loggy Soil report indicates hydrology in parcel, identified outside this plot in Data Plot 11. Data plot does not satisfy hydrology criterion.
Gaulthiera shallon
Rosa nutkana
growing under and around Rosa nutkana
5/22/2008
Middle of depression area near Wetland I
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland I, PSS
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 11
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Seasonal wetland area
VEGETATION Indicat
or Statum %Cover Dominant?
1 Spiraea douglassii FACWShrub80Yes
2 Rosa nutkana FACShrub20Yes
3 Rubus parviflorus FAC-Shrub5No
4
5
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XWater MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam, granular
B commonmed.prominentsity sand, blocky, few gravels
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:
Remarks: Loggy Soils Report indicates watermarks, free water and saturation in this parcel on 3/21/05. Data plot satisfies hydrology criterion.
Other: Loggy Soil and Wetland Consulting 5/05 X
Data plot satisfies hydric soils criterion.
Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category IV depressional wetland.
6-12+2.5 YR 5/27.5 YR 4/4
Depth (inches)Matrix Color (Moist)RMF Color
1-610 YR 2/2none
percent
Symphoricarpos albus outside of plot. Data plot satisfies hydrophytic vegetation criterion.
5/22/2008
Edge of Weland I, alongside Discovery Rd.
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland J, PFO/PSS
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 12
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Seasonal Wetland
VEGETATION Indicat
or Statum %Cover Dominant?
1 Populus tremuloides FAC+Tree50Yes
2FACWTree35Yes
3 Rosa nutkana FACShrub40Yes
4 Spiraea douglassii FACWShrub40Yes
5 Carex obnupta OBLHerb70Yes
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XWater MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:XDrainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
O root mat and leaf litter
A sandy loam, granular
B 40%fineprominentsilty sand with gravel
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category III depressional wetland.
Other: Loggy Soil and Wetland Consulting 5/05 X
Remarks: Loggy Soils Report indicates watermarks, free water and saturation in this parcel on 3/21/05. Data plot satisfies hydrology criterion.
5/22/2008
Near edge of Wetland J alonside Discovery Rd
Scientific Name Notes
Salix sitchensis
percent
Depth (inches)Matrix Color (Moist)RMF Color
0-2
2-810 YR 3/1none
8-16+2.5 YR 5/27.5 YR 4/4
Data plot satisfies hydric soils criterion.
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 13
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Potential seasonal wetland area
VEGETATION Indicat
or Statum %Cover Dominant?
1 Salix scouleriana FACForest80Yes
2 Gaulthiera shallon FACUShrub80Yes
3 Holodiscus discolor NIShrub20Yes
4FACShrub10No
5 Rubus parviflorus FAC-Shrub5No
6 Pteridium aquilinum FACUHerb 5No
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):33
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
Water MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
O duff, leaf litter and twigs
A sandy loam, granular, ashy
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?No
Is Sampling Point Within a Wetland?No
Remarks:
Data plot does not satisfy hydric soils criterion.
Data plot satisfies none of the three mandatory wetland criterion. The data plot is classified as upland.
0-1
1-12+10 YR 2/2none
percent
Depth (inches)Matrix Color (Moist)RMF Color
Other:
Remarks: Data plot does not satisfies hydrology criterion.
Rosa nutkana
5/22/2008
Near edge of Wetland J alongside Discovery Rd
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland O, PEM
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 14
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?Yes
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1FACShrub5No
2FACWHerb20Yes
3 Agrostis stolonifera FACWHerb20Yes
4 Holcus lanatus FACHerb10No
5
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherXWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
XSediment DepositsOther (explain in remarks)
Field Observations:XDrainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerept Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A/B fewvery finfaintdense silty sand with gravel
B 50%mediumdistinctdense silty sand with gravel
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:
Area disturbed, A horizon may have been removed. Data plot satisfies hydric soils criterion.
Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category IV wetland.
0-810 YR 4/22.5 YR 5/2
8-12+10 YR 4/27.5 YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Moist in upper 12+ inches, ponded water adjacent and downslope. Data plot satisfies hydrology criterion.
Salix scouleriana sapling
Juncus effusus
5/22/2008
Scientific Name Notes
Near center of Wetland O (man-made depression)
Man made, but may have been weltand prior to road creation, etc. A layer may have been partially
removed.
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland N, PFO
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 15
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Road prism adjacent
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1FACTree50Yes
2FACWShrub70Yes
3FACUShrub10No
4OBLHerb10No
5
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesXWater-Stained Leaves
OtherXWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:XDrainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A silty sand, granular
B 60%courseprominentsity sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:
Data plot satisfies hydric soils criterion.
Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category IV depressional wetland.
0-810 YR 3/1none
8-12+2.5 Y 4/27.5YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Soil moist but not saturated. Data plot satisfies hydrology criterion.
Symphoricarpos albus
Carex obnupta
Salix scouleriana
Spiraea douglassii
5/22/2008
Near edge of Wetland N, alongside Discovery Rd.
(area not previously investigated)
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 16
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Road prism adjacent
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1 Pseudotsuga menziesii FACUTree20Yes
2 Salix sitchensis FACWTree30Yes
3FACUShrub60Yes
4 Spiraea douglassii FACWShrub40Yes
5 Rosa nutkana FACShrub10No
6 Amelanchier alnifolia FACUShrub10No
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):50
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam, granular, ashy
B 70%coursefaintsity sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:Data plot satisfies two of the three mandatory wetland criterion. The data plot is classified as upland.
0-910 YR 3/2none
9-1210 YR 4/37.5YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Soil moist but not saturated. Data plot does not satisfy hydrology criterion.
Gaulthiera shallon
5/22/2008
Near edge of Wetland N, alongside Discovery Rd.
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland E, PEM
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 17
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?NoExplanation: Area seasonally hayed, vegetation currently undisturbed
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1FACU Herb20Yes
2FACHerb15Yes
3FACW-Herb15Yes
4 Alopecurus pratensis FACWHerb15Yes
5 Festuca arundinaceae FAC-Herb10No
6 Plantago lanceolata FACHerb5No
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):75
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedXOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XOtherAlkai report, July 2007Water MarksLocal Soil Survey Data
No recorded data availableDrift LinesXFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A fewvery findistinctsandy loam, granular, ashy
B 60%largefaintsity sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks:Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a category IV depressional wetland.
0-710 YR 3/2Ox.Rhizos 10YR 4/4
7-1210 YR 4/37.5YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Remarks: Although only one plant species is dominant at ≥20% cover, other species ≥ 15% were considered as dominants to better represent the
vegetation at this site. Data plot satisfies hydrophytic vegetation criterion.
Remarks: Soil moist but not saturated. Previous report by Alkai indicate inundation to 4 inches on 3/1/07. Data plot satisfies hydrophytic vegetation
criterion.
Ranunculus acris
Anthoxanthum odoratum
Holcus lanatus
5/22/2008
Scientific Name Notes
Middle of depression in field in Wetland E with
"wettest" vegetation community
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 18
Investigator:SM and JCSState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?YesExplanation: Adjacent to road prism and area seasonally hayed, vegetation currently undisturbed
Is Site a Potential Problem Area?NoExplanation:
VEGETATION Indicat
or Statum %Cover Dominant?
1FACU Herb40Yes
2 Vicia sativa UPLHerb15No
3 Festuca arundinacea FAC-Herb10No
4 Plantago lanceolata FACHerb5No
5 Myosotis arvensis FACHerbTNo
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):0
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XOtherAlkai report, July 2007Water MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A finesandy loam, granular
B 30%mediumfaintsilty sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
XNone Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:
Data plot satisfies hydric soils criterion.
Data plot satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
0-810 YR 3/2none
8-12+10 YR 4/37.5YR 4/4
percent
Depth (inches)Matrix Color (Moist)RMF Color
Remarks: Alkai report indicated seasonal saturation and free water at 3 inches BGS on 3/1/2007. Data plot does not satisfy hydrology criterion.
Anthoxanthum odoratum
5/22/2008
Scientific Name Notes
Middle of depression in field in Area F with "wettest"
vegetation community
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 19
Investigator:JCS and SJQState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?YesExplanation:Potential seasonal wetland area
VEGETATION Indicat
or Statum %Cover Dominant?
1FACShrub80Yes
2FACUShrub5No
3 Symphoricarpos albus FACUShrub5No
4 Rubus ursinus FACUShrubTNo
5 Poa pratensis FACHerb60Yes
6 Holcus lanatus FACHerbTNo
7 Galium aparine FACUHerbTNo
8 Taraxacum officinale FACUHerbTNo
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):100
Remarks:
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
XOtherAlkai report, July 2007Water MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam, granular, wood, worms
B commonmed.promenantsity sand, blocky
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Matrix Color (Moist)RMF Color
1-610 YR 2/2none
6/2/2008
Middle of depression in Area G
Scientific Name Notes
Gaulthiera shallon
Rosa nutkana
percent
Symphoricarpos albus outside of plot. Hydrophytic vegetation very marginal. Data plot satisfies hydrophytic vegetation criterion.
Alkai report indicated saturation and free water at 7 inches 3/01/07. Data plot does not satisfies hydrology criterion.
Depth (inches)
6-12+2.5 Y 5/27.5 YR 4/4
Remarks: Hydrology not likely sufficient. Although dominated by FAC other vegetation is FACU and Alkai report (2007) classified area as upland based
on lack of hydric vegetation on 3/01/07. Data plot satisfies two of the three mandatory wetland criterion. The data plot is classified as upland.
Data plot satisfies hydric soils criterion.
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Wetland T, PEM/PFO
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 20
Investigator:JCS and TMTState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1FACWTree30Yes
2 Populus balsamifera FACSapling5No
3 Rubus ursinus FACUShrub10No
4OBLHerb30Yes
5 Poa pratensis FACHerb30Yes
6 Festuca arundinacea FACU-Herb30Yes
7 Juncus effusus FACWHerb20Yes
8 Holcus lanatus FACHerb5No
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):80
Remarks:Data plot satisfies hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsXSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
XNo recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneNone Present
Depth to Free Water in Pit (inches BGS):9
Depth to Saturated Soil (inches BGS):4
Remarks:Data plot satisfies hydrology criterion.
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam
B sandy loam
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?Yes
Wetland Hydrology Present?Yes
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?Yes
Remarks: Next to a ponded area with emergent vegetation. Data plot satisfies all three mandatory wetland criterion. The data plot is classified as a
category III depressional wetland.
Data plot satisfies hydric soils criterion.
6-16+10 YR 3/1none
Depth (inches)Matrix Color (Moist)RMF Color
0-610 YR 2/1none
percent
Typha latifolia
Salix lasiandra
6/12/2008
Near the edge of ponding area in Wetland T
Scientific Name Notes
DATA FORM
ROUTINE WETLAND DETERMINATION
(Adapted from 1987 COE Wetlands Delineation Manual Form Content Approved by HQUSACE 3/92)
GENERAL INFORMATION
Project Site:Howard Street LIDDate:Community ID:Upland
Applicant/Owner:City Port TownsendCity:Port TownsendData Plot #:DP 21
Investigator:JCS and TMTState:WAPlot Location:
Do Normal Circumstances Exist?Yes
Is site significantly disturbed (Atypical)?No
Is Site a Potential Problem Area?No
VEGETATION Indicat
or Statum %Cover Dominant?
1 Rubus ursinus FACUShrub20Yes
2 Festuca arundinacea FACU-Herb60Yes
3UPLHerb30Yes
4
5
6
7
8
9
10
% of Dominant Species that are OBL, FACW or FAC (excluding FAC-):0
Remarks:Data plot does not satisfy hydrophytic vegetation criterion.
HYDROLOGY
Recorded Data (describe in Remarks)Primary Indicators:Secondary Indicators (2 or more required):
Stream, Lake, or Tide GaugeInundatedOxidized Root Channels in Upper 12”
Aerial PhotographsSaturated in Upper 12 inchesWater-Stained Leaves
OtherWater MarksLocal Soil Survey Data
No recorded data availableDrift LinesFAC-Neutral Test
Sediment DepositsOther (explain in remarks)
Field Observations:Drainage Patterns in Wetlands
Depth of Surface Water (inches BGS):NoneXNone Present
Depth to Free Water in Pit (inches BGS):None
Depth to Saturated Soil (inches BGS):None
Remarks:Data plot does not satisfy hydrology criterion.
SOILS
Map Unit Name (Series and Phase):Clallam SeriesDrainage Class: Moderately well drained
Taxonomy (Subgroup):Loamy-skeletal, isotic, mesic Oxyaquic Vitrandic Haploxerepts Field Observations Confirm Mapped Type?
Profile Description:
orizo Abundance Size Contrast Soil Description, Texture, Structure
A sandy loam
B 40%prominentsandy loam
B
Presence of Hydric Soil Indicators:
Histosol(not tested)Reducing ConditionsHigh Organic Content in Surface Layer in Sandy Soils
Histic EpipedonXGleyed or Low-Chroma ColorsListed on National Hydric Soils List
Sulfidic OdorConcretionsListed on Local Hydric Soils List
Aquic Moisture RegimeOrganic Streaking in Sandy SoilsOther (explain in remarks)
None Present
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?No
Wetland Hydrology Present?No
Hydric Soils Present?Yes
Is Sampling Point Within a Wetland?No
Remarks:
6/12/2008
Upslope from DP 20 and Wetland T near trail
Scientific Name Notes
Vicia satvia
percent
Depth (inches)Matrix Color (Moist)RMF Color
0-410 YR 4/2none
2-610 YR 6/210 YR 4/6
6-16+2.5 YR 4/2
Data plot satisfies hydric soils criterion.
Data plot satisfies one of the three mandatory wetland criterion. The data plot is classified as upland.
APPENDIX D
Selected Site Photographs
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-1 LANDAU ASSOCIATES
Photo 1: Wetland A, looking north on Howard Street.
Photo 2: Looking south towards Wetland A from field
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-2 LANDAU ASSOCIATES
Photo 3: Upland area east of Wetland A
Photo 4: Large field looking south
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-3 LANDAU ASSOCIATES
Photo 5: Wetland E depression in middle of field
Photo 6: Large field looking north after being hayed in late June
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-4 LANDAU ASSOCIATES
Photo 7: Looking into Area G from Discovery Road.
Photo 8: Looking down Wetland I from Discovery Road.
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-5 LANDAU ASSOCIATES
Photo 9: Southern end of Wetland I.
Photo 10: Looking into Wetland J
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-6 LANDAU ASSOCIATES
Photo 11: Wetland L
Photo 12: Wetland soils
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-7 LANDAU ASSOCIATES
Photo 13: Wetland N
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-8 LANDAU ASSOCIATES
Photo 14: Wetland O
8/13/08 Y:\550\049.020\R\Appendix D_site photos.doc D-9 LANDAU ASSOCIATES
Photo 15: Center of Wetland T
Photo 16: Utility road dividing Wetland T, small culvert under road
APPENDIX E
Wetland Rating Forms
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland A Date of site visit: May 21, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 12,697 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III X IV
Category I = Score > 70 Score for Water Quality Functions 18
Category II = Score 51 - 69 Score for Hydrologic Functions 5
Category III = Score 30 – 50 Score for Habitat Functions 13
Category IV = Score < 30 TOTAL Score for Functions 36
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) III
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
2
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
2
Total for D 1 Add the points in the boxes above 9
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland x Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 18
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
2
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 5
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 5
Comments
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants x Scrub/shrub (areas where shrubs have > 30% cover) x Forested (areas where trees have > 30% cover) If the unit has a forested class check if: x The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure....................points = 0
2
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 x Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
1
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
1
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. x Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) x Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
2
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 7
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
x No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
2
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 6
TOTAL for H 1 from page 8 7
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 13
Comments:
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland A
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = X not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching,filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland C Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 1,130 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III IV X
Category I = Score > 70 Score for Water Quality Functions 16
Category II = Score 51 - 69 Score for Hydrologic Functions 7
Category III = Score 30 – 50 Score for Habitat Functions 5
Category IV = Score < 30 TOTAL Score for Functions 28
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) IV
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
3
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
0
Total for D 1 Add the points in the boxes above 8
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 16
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
4
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 7
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 7
Comments
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed x Emergent plants ____ Scrub/shrub (areas where shrubs have > 30% cover) Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
0
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
0
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
0
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
0
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 1
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
x Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
0
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries,other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 4
TOTAL for H 1 from page 8 1
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 5
Comments:
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland C
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching,filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland E Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 237 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III IV X
Category I = Score > 70 Score for Water Quality Functions 16
Category II = Score 51 - 69 Score for Hydrologic Functions 7
Category III = Score 30 – 50 Score for Habitat Functions 6
Category IV = Score < 30 TOTAL Score for Functions 29
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) IV
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
3
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
0
Total for D 1 Add the points in the boxes above 8
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 16
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
4
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 7
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 7
Comments
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed x Emergent plants ____ Scrub/shrub (areas where shrubs have > 30% cover) Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
0
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 or more types present......points = 2 x Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
1
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
0
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
0
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 2
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
x Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
0
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 4
TOTAL for H 1 from page 8 2
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 6
Comments:
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland E
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland I Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 11,159 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III IV X
Category I = Score > 70 Score for Water Quality Functions 14
Category II = Score 51 - 69 Score for Hydrologic Functions 5
Category III = Score 30 – 50 Score for Habitat Functions 8
Category IV = Score < 30 TOTAL Score for Functions 27
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) IV
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
2
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
0
Total for D 1 Add the points in the boxes above 7
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 14
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
2
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 5
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 5
Comments
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants x Scrub/shrub (areas where shrubs have > 30% cover) Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
0
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
0
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
1
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) x Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
1
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 3
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
x Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
1
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 5
TOTAL for H 1 from page 8 3
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 8
Comments:
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland I
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland J Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 3,846 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III X IV
Category I = Score > 70 Score for Water Quality Functions 14
Category II = Score 51 - 69 Score for Hydrologic Functions 5
Category III = Score 30 – 50 Score for Habitat Functions 11
Category IV = Score < 30 TOTAL Score for Functions 30
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) III
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
2
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
0
Total for D 1 Add the points in the boxes above 7
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 14
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
2
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 5
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 5
Comments
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants x Scrub/shrub (areas where shrubs have > 30% cover) x Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
1
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 x Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
1
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
1
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) x Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
1
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 5
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
x No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
2
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 6
TOTAL for H 1 from page 8 5
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 11
Comments:
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland J
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = X not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland N Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 1,496 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III IV X
Category I = Score > 70 Score for Water Quality Functions 14
Category II = Score 51 - 69 Score for Hydrologic Functions 5
Category III = Score 30 – 50 Score for Habitat Functions 10
Category IV = Score < 30 TOTAL Score for Functions 29
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) IV
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
2
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
0
Total for D 1 Add the points in the boxes above 7
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 14
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
2
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
0
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 5
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 5
Comments
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants Scrub/shrub (areas where shrubs have > 30% cover) x Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
0
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 x Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
1
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
1
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) x Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) x Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
2
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 5
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
x Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
1
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries,other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 5
TOTAL for H 1 from page 8 5
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 10
Comments:
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland N
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland O (man-made depression near road) Date of site visit: May 22, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 240 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III IV X
Category I = Score > 70 Score for Water Quality Functions 10
Category II = Score 51 - 69 Score for Hydrologic Functions 10
Category III = Score 30 – 50 Score for Habitat Functions 9
Category IV = Score < 30 TOTAL Score for Functions 29
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) IV
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
2
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
1
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
2
Total for D 1 Add the points in the boxes above 5
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 10
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
2
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
5
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 10
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 10
Comments
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed x Emergent plants Scrub/shrub (areas where shrubs have > 30% cover) Forested (areas where trees have > 30% cover) If the unit has a forested class check if: The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
0
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 x Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
1
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
1
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
1
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
0
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 3
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
x No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
2
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
0
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
3
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 6
TOTAL for H 1 from page 8 1
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 7
Comments:
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland O
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 1 of 9
WETLAND RATING FORM – WESTERN WASHINGTON
Version 2 – Updated July 2006 to increase accuracy and reproducibility among users
Name of wetland (if known): Wetland T Date of site visit: June 12, 2008
Rated by: SM and JCS Trained by Ecology? Yes X No Date of training:
SEC:09 TWNSHP: 30 RNGE: 01W Is S/T/R in Appendix D? Yes No_____
Map of wetland unit: Figure 3 Estimated size: 12,936 SF
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland: I II III X IV
Category I = Score > 70 Score for Water Quality Functions 16
Category II = Score 51 - 69 Score for Hydrologic Functions 6
Category III = Score 30 – 50 Score for Habitat Functions 15
Category IV = Score < 30 TOTAL Score for Functions 37
Category based on SPECIAL CHARACTERISTCS of Wetland I II Does not apply X
Final Category (choose the “highest” category from above”) III
Summary of basic information about the wetland unit.
Wetland Unit has Special
Characteristics Wetland HGM Class
used for Rating
Estuarine Depressional x
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above x Check if unit has multiple
HGM classes present
Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will
need to protect the wetland according to the regulations regarding the special characteristics found in the wetland.
Check List for Wetlands that Need Additional Protection
(in addition to the protection recommended for its category) YES NO
SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or
Endangered animal or plant species (T/E species)?
For the purposes of this rating system, “documented” means the wetland is on the appropriate
state or federal database.
X
SP2. Has the wetland unit been documented as habitat for any State listed Threatened or
Endangered animal species? For the purposes of this rating system, “documented” means the
wetland is on the appropriate state database. Note: Wetlands with State listed plant species
are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form).
X
SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? X
SP4. Does the wetland unit have a local significance in addition to its functions? For example, the
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or
in a local management plan as having special significance.
X
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 2 of 9
Classification of Vegetated Wetlands for Western Washington
If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with
multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8.
1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
NO – go to 2 YES – the wetland class is Tidal Fringe
If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
YES – Freshwater Tidal Fringe NO – Saltwater Tidal Fringe (Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it
is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt
Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and
this separation is being kept in this revision. To maintain consistency between editions, the term “Estuarine” wetland is kept. Please
note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. _____).
2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water
runoff are NOT sources of water to the unit.
NO – go to 3 YES – The wetland class is Flats
If your wetland can be classified as a “Flats” wetland, use the form for Depressional wetlands.
3. Does the entire wetland meet both of the following criteria?
______The vegetated part of the wetland is on the shores of a body of permanent open water (without any
vegetation on the surface) where at least 20 acres (8ha) in size;
______At least 30% of the open water area is deeper than 6.6 (2 m)?
NO – go to 4 YES – The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland meet all of the following criteria?
x_____The wetland is on a slope (slope can be very gradual).
______The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may
flow subsurface, as sheetflow, or in a swale without distinct banks.
______The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep).
NO – go to 5 YES – The wetland class is Slope
5. Does the entire wetland meet all of the following criteria?
______The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or
river.
______The overbank flooding occurs at least once every two years.
NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding..
NO – go to 6 YES – The wetland class is Riverine
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of
the year. This means that any outlet, if present is higher than the interior of the wetland.
NO – go to 7 YES – The wetland class is Depressional
7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not
pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The
wetland may be ditched, but has no obvious natural outlet.
No – go to 8 YES – The wetland class is Depressional
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a
slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO
BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT
AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the
rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in
the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less
than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area.
HGM Classes within the wetland unit being rated HGM Class to Use in Rating
Slope + Riverine Riverine
Slope + Depressional Depressional
Slope + Lake-fringe Lake-fringe
Depressional + Riverine along stream within boundary Depressional
Depressional + Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of
freshwater wetland
Treat as ESTUARINE under wetlands with special
characteristics
If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes
within a wetland boundary, classify the wetland as Depressional for the rating.
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 3 of 9
D Depressional and Flat Wetlands Points
WATER QUALITY FUNCTIONS – Indicators that wetland functions to improve water quality. (only 1 score
per box)
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 3• Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet........points = 2
• Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 1• Unit is a “flat” depression (Q.7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) Provide photo or drawing
1
D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) YES points = 4 NO points = 0 0
D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class):
• Wetland has persistent, ungrazed vegetation > = 95% of area...............................................points = 5• Wetland has persistent, ungrazed vegetation > = 1/2 of area.................................................points = 3
• Wetland has persistent, ungrazed vegetation > = 1/10 of area...............................................points = 1• Wetland has persistent, ungrazed vegetation < 1/10 of area..................................................points = 0
Map of Cowardin vegetation classes
5
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland..........................................................points = 4• Area seasonally ponded is > 1/4 total area of wetland..........................................................points = 2
• Area seasonally ponded is < 1/4 total area of wetland..........................................................points = 0 Map of Hydroperiods
2
Total for D 1 Add the points in the boxes above 8
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland? Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging x Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other
YES multiplier is 2 NO multiplier is 1
Multiplier
2
TOTAL – Water Quality Functions Multiply the score from D1 by D2; then add score to table on p. 1 16
HYDROLOGIC FUNCTIONS – Indicators that wetland unit functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland unit
• Unit is a depression with no surface water leaving it (no outlet)...........................................points = 4• Unit has an intermittently flowing, OR highly constricted permanently flowing outlet.........points = 2
• Unit is a “flat” depression (Q.7 on key) or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch...........................points = 1(If ditch is not permanently flowing treat unit as “intermittently flowing”) • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing).......points = 0
0
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For
units with no outlet measure from the surface of permanent water or deepest part (if dry).
• Marks of ponding are 3 ft. or more above the surface or bottom of the outlet.......................points = 7
• The wetland is a “headwater” wetland..................................................................................points = 5• Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet...........................points = 5
• Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet......................................points = 3• Wetland is flat (yes to Q.2 or Q.7 on key)but has small depressions on the surface that trap waterpoints = 1
• Marks of ponding less than 0.5 ft.........................................................................................points = 0
3
D 3.3 Contribution of wetland unit to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
• The area of the basin is less than 10 times the area of unit...................................................points = 5• The area of the basin is 10 to 100 times the area of the unit .................................................points = 3
• The area of the basin is more than 100 times the area of the unit..........................................points = 0• Entire unit is in the FLATS class.........................................................................................points = 5
3
Total for D 3 Add the points in the boxes above 6
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49)
Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from
Multiplier
1
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 4 of 9
groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. ____ Wetland drains to a river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems Other
YES multiplier is 2 NO multiplier is 1
no
TOTAL – Hydrologic Functions Multiply the score from D3 by D4; then add score to table on p. 1 6
Comments
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 5 of 9
These questions apply to wetlands of all HGM classes. Points
HABITAT FUNCTIONS – Indicators that wetland functions to provide important habitat. (only 1 score
per box)
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure (see P. 72):
Check the types of vegetation classes present (as defined by Cowardin) –Size threshold for each class is
1/4 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed x Emergent plants Scrub/shrub (areas where shrubs have > 30% cover) x Forested (areas where trees have > 30% cover) If the unit has a forested class check if: x The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that qualify. If you have: Map of Cowardin vegetation classes4 structures or more.......points = 4 3 structures...................points = 22 structures....................points = 1 1 structure ....................points = 0
2
H 1.2 Hydroperiods (see p.73):
Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to
cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). x Permanently flooded or inundated 4 or more types present points = 3 x Seasonally flooded or inundated 3 or more types present......points = 2 Occasionally flooded or inundated 2 types present...................points = 1 x Saturated only 1 type present ....................points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland.................= 2 points Freshwater tidal wetland.........= 2 points Map of hydroperiods
2
H 1.3 Richness of Plant Species (see p. 75): Count the number of plant species in the wetland that cover at least 10 ft2 (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species ......................points = 2 5 – 19 species....................points = 1 List species below if you want to: < 5 species ........................points = 0
2
H 1.4 Interspersion of Habitats (see p. 76):
Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H1.1), or
the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none.
Note: If you have 4 or more classes
or 3 vegetation classes and
open water, the rating is
always “high”.
Use map of Cowardin classes.
3
H 1.5 Special Habitat Features (see p. 77):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column. Large, downed, woody debris within the wetland (> 4 in. diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (1m) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error.
2
H 1 TOTAL Score – potential for providing habitat Add the points in the column above 11
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 6 of 9
H 2 Does the wetland have the opportunity to provide habitat for many species? (only 1 score
per box)
H 2.1 Buffers (see P. 80):
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of “undisturbed”.
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% of circumference. No structures are within the undisturbed part of buffer
(relatively undisturbed also means no grazing, no landscaping, no daily human use)..............points = 5
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 50% circumference.....................................................................................................points = 4
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 95% circumference.....................................................................................................points = 4
100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
> 25% circumference.....................................................................................................points = 3
50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water
for > 50% circumference...............................................................................................points = 3
If buffer does not meet any of the criteria above:
No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland >
95% circumference. Light to moderate grazing or lawns are OK...................................points = 2
No paved areas of buildings within 50m of wetland for > 50% circumference.
Light to moderate grazing or lawns are OK....................................................................points = 2
Heavy grazing in buffer.................................................................................................points = 1
x Vegetated buffers are < 2m wide (6.6 ft) for more than 95% circumference
(e.g. tilled fields, paving, basalt bedrock extend to edge of wetland)..............................points = 0
Buffer does not meet any of the criteria above...............................................................points = 1
Arial photo showing buffers
0
H 2.2 Corridors and Connections (see p. 81)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 150 ft. wide, has at least a 30% cover of shrubs, forest or native
undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads, paved roads,
are considered breaks in the corridor).
YES = 4 points (go to H 2.3) NO = go to H 2.2.2
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian
or upland) that is at least 50 ft. wide, has at least 30% cover of shrubs or forest, and connects to
estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-
fringe wetland, if it does not have an undisturbed corridor as in the question above?
YES = 2 points (go to H 2.3) NO = go to H 2.2.3
H. 2.2.3 Is the wetland:
• Within 5 mi (8km) of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture (> 40 acres) OR YES = 1 point
• Within 1 mile of a lake greater than 20 acres? NO = 0 points
1
Comments:
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 7 of 9
H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82):
Which of the following priority habitats are within 330 ft. (100m) of the wetland? NOTE: the connections do
not have to be relatively undisturbed. These are DFW definitions. Check with your local DFW biologist if
there are any questions.
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres)
Cliffs: Greater than 7.6m (25 ft) high and occurring below 5000 ft.
Old-growth forests: (Old growth west of Cascade Crest) Stands of at least 2 tree species, forming a
multi-layered canopy with occasional small openings, with at least 20 trees/ha (8 trees/acre) > 81cm
(32 in) dbh or > 200 years of age.
x Mature forests: Stands with average diameters exceeding 53cm (21 in) dbh; crown cover may be
less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is
generally less than that found in old-growth; 80 – 200 years old west of the Cascade Crest.
Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where greases
and/or forbs form the natural climax plant community.
Talus: Homogenous areas of rock rubble ranging in average size 0.15 – 2.0m (0.5 – 6.5 ft),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May
be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages.
Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy
coverage of the oak component of the stand is 25%.
Urban Natural Open Space: A priority species resides within or is adjacent to the open space and
uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting
other priority habitats, especially those that would otherwise be isolated; and/or the open space is an
isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban
development.
Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed
by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean
water is at least occasionally diluted by freshwater runoff from the land. The salinity may be
periodically increased above that of the open ocean by evaporation. Along some low-energy
coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward
to where ocean-derived salts measure less than 0.5 ppt. during the period of average annual low flow.
Includes both estuaries and lagoons.
Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and
may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs,
snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and
that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion
control).
If wetland has 3 or more priority habitats..= 4 points If wetland has 1 priority habit..= 1 point
If wetland has 2 priority habitats...............= 3 points No habitats...............................= 0 points
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list.
(Nearby wetlands are addressed in question H 2.4).
1
H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (see p. 84)
• There are at least 3 other wetlands within 1/2 mile, and the connections between them are
relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating,
but connections should NOT be bisected by paved roads, fill, fields, or other development..........points = 5
• The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe
wetlands within 1/2 mile.....................................................................................................points = 5
• There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are
disturbed.............................................................................................................................points = 3
• The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands
within 1/2 mile....................................................................................................................points = 3
• There is at least 1 wetland within 1/2 mile...........................................................................points = 2
• There are no wetlands within 1/2 mile..................................................................................points = 0
2
H 2 TOTAL Score – opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 4
TOTAL for H 1 from page 8 11
Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 15
Comments:
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 8 of 9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wetland Type – Check off any criteria that apply to the wetland. Circle the Category when the appropriate
criteria are met.
SC1 Estuarine wetlands? (see p.86)
Does the wetland unit meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt.
YES = Go to SC 1.1 NO x
SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural
Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC
332-30-151? YES = Category I NO = go to SC 1.2
Cat. 1
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES = Category I NO = Category II ___ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/II). The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. ___ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland ___ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. II
Dual
Rating
I/II
SC2 Natural Heritage Wetlands (see p. 87)
Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHP/DNR.)
S/T/R information from Appendix D or accessed from WNHP/DNR web site
YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 NO x
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species?
YES = Category 1 NO x not a Heritage Wetland
Cat I
SC3 Bogs (see p. 87)
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use
the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
wetland based on its function.
1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES = go to question 3 NO = go to question 2
2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over
bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or
pond? YES = go to question 3 NO = is not a bog for purpose of rating
3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present,
consist of the “bog” species listed in Table 3 as a significant component of the vegetation (more
than 30% of the total shrub and herbaceous cover consists of species in Table 3)?
YES = Is a bog for purpose of rating NO = go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hole dug at least 16” deep. If the pH is
less than 5.0 and the “bog” plant species in Table 3 are present, the wetland is a bog.
4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western
hemlock, lodgepole pine, quaking aspen, Englemann’s spruce, or western white pine. WITH any of
the species (or combination of species) on the bog species plant list in Table 3 as a significant
component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)?
YES = Category I NO = Is not a bog for purpose of rating
Cat. I
Wetland name or number Wetland T
Wetland Rating Form – western Washington, version 2 (7/06) Page 9 of 9
SC4 Forested Wetlands (see p. 90)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife’s forests as priority habitats? If you answer yes you will still need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and “OR” so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 – 200 years old
OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than
100%; decay, decadence, numbers of snags, and quantity of large downed material is generally
less than that found in old-growth.
YES = Category I NO = not a forested wetland with special characteristics
Cat. I
SC5 Wetlands in Coastal Lagoons (see p. 91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depression adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks.
The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5
ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the
bottom.)
YES = Go to SC 5.1 NO not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has
less than 20% cover of invasive plant species (see list of invasive species on p. 74).
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed
or un-mowed grassland.
The wetland is larger than 1/10 acre (4350 square ft.)
YES = Category I NO = Category II
Cat. I
Cat. II
SC6 Interdunal Wetlands (see p. 93)
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or
WBUO)?
YES = Go to SC 6.1 NO not an interdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
• Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- lands west of SR 105 • Ocean Shores-Copalis – lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger?
YES = Category II NO = go to SC 6.2
SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre?
YES = Category III
Cat. II
Cat. III
Category of wetland based on Special Characteristics
Choose the “highest” rating if wetland falls into several categories, and record on p. 1.
If you answered NO for all types enter “Not Applicable” on p. 1
no
Comments:
APPENDIX F
Maps with Wetland Flags and Data Plots