HomeMy WebLinkAbout1998.09.00 - Hilltop Tavern Wetland InvestigationENGINEERING
LAND SURVEYING
WETLAND DELINEATION
DEVELOPMENT CONSULTI NG
$eptember 1998
WETLAND INVESTIGATION
Section 9, Township 30 North, Range 1 West, W.M.
Jefferson County, Washington
Prepared for:
First Western lnvestments
Clark Land 0flice PLLC
P0. Box 2199 . 935 North Fifth Avenue
Sequim, WA 98382
(360) 681-2161 . Fax (360) 683-5310
Toll Free (681-2161
F,*
WETLAND INVESTIGATION
For
FIRST WESTERN INVESTMENTS
EXECUTIVE SUMMARY
An investigation performed on September 9, 1998 revealed a small wetland on the
easterly pioperty boundary of the project site. This wetland has been previously
delineated and classified by others and was not subject to this investigation. No other
wetlands were noted or observed on the remaining portion of the property.
WETLAND INVESTIGATION
For
FIRST WESTERN INVESTMENTS
CONTENTS
I. PROJECT OVERVIEW
A. SCOPEB. PROJECT DATA.....C. GENEML SITE DESCRIPTION1. Existing Site Conditions2. Vegetation ....................
II. WETLANDINVESTIGATION
A. METHODOLOGY...1. Review of Existing lnformation .............2. Evaluation of Field ConditionsB. WETLAND INVESTIGATION FINDINGS
III. SUMMARY
APPENDIX I- SITE LOCATION
APPENDIX tt - REFERENCES
APPENDIX III - WETLAND DEFINITIONS
A. HYDROPHYTICVEGETATIONB. HYDRIC SOILC, HYDROLOGY
APPENDIX IV - WETLAND DATA FORMS
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WETLAND INVESTIGATION
For
FIRST WESTERN INVESTMENTS
I. PROJECT OVERVIEW
A. SCOPE
The scope of this report includes the results of a field investigation to determine
the presence of wetlands on the project site within the city limits of Port
Townsend. Prior to the September 1998 site visit, a wetland had been
previously delineated and classified by others. Review of this wetland waS not
within the scope of this rePort.
PROJECT DATA
ProPertY Owner:George Barber
First Western lnvestments
100 Second Avenue South, Suite 250
Post Office Box 1449
Edmonds, WA 98020-1449
(425) 775-6000
Wetland Specialist:Nancy L. McHenry
Clark Land Office
935 North Sth Avenue
Post Office Box 2199
Sequim, WA 98382
(360) 6;81-2161
(360) 683-5310 (FAX)
Location Northeasterly of the intersection of State
Route 20 (Sims Road) and Mill Road
located in Section 9, Township 30 North,
Range 1 West, W.M., CitY of Port
Townsend
Soil Type (per SCS): Clallam gravelly sandy loam
B
1
C. GENERAL SITE DESCRIPTION
The following conditions represent the surrounding general site conditions as
observed by Nancy L. McHenry of Clark Land Office, during a'September 9,
1 998 site investigation.
1. Existing Site Conditions
The 13.S-acre property is composed of two parcels (Parcel A and Parcel
B) as shown in Appendix l. The property is currently vacant with no
physical improvements. Parcel A (2.8 acres) has been graded relatively
flat and contains pasture grasses. A small wetland on the easterly
property line was observed and has been examined and documented in a
ieport prepared previously by others. This area is sketched on the
attached site plan (Appendix l).
Parcel B (10.7 acres) is currently forested with vegetation typically found
in a second growth forest in the Port Townsend area. Discovery Bay
Road as shown in Appendix I bisects this parcel.
The surrounding property uses are commercial and residential. The
property is bounded on the north and west by residential homes, on the
south by Sims Way and on the east by Hilltop tavern.
2. Vegetation
The majority of the project site contains vegetation typically found in
second growth forests. The vegetation includes Western red cedar,
Douglas fir, red alder, Pacific madrone, salal, rhododendron, blackberries,
and sword fern.
II. WETLAND INVESTIGATION
A. METHODOLOGY
1. Review of Existing lnformation
Prior to the site investigation, existing information was reviewed to obtain
background knowledge of the area. Literature reviewed (see Appendix ll)
as part of the delineation included:
City of Port Townsend Environmentally Sensitive Areas Ordinance,
Chapter 19.05, Port Townsend Municipal Code
2
a
a
a
Soil Survey of Jefferson County Area, Washington, Sheet Number 42
(usDA 1e75)
National Wetland lnventory Maps, U.S. Fish and Wildlife Service, Port
Townsend South Quadrangle, July 1987
2. Evaluation of Field Conditions
The routine wetland determination method as described in the U.S. Army
Corps of Engineers Wetlands Delineation Manual, January 1987 (1987
Technical Manual) was utilized in defining the wetland on the project site.
According to the Technical Manual and City of Port Townsend
Ordinances, three parameters must be examined for wetland
determination: vegetation, soils, and hydrology. For an area to be
classified as a wetland, the area must exhibit hydrophytic vegetation,
hydric soils, and wetland hydrology. Please refer to Appendix lll for
definitions of these parameters.
The entire projecf site was walked to evaluate areas for further
investigation. A wetland that had been previously delineated and
classified was observed along the easterly property line.
a) Hydrophytic Vegetation
The property was visually observed for the dominant plant species. With
the exception of the one identified wetland area, the dominant plant
species would be considered not hydrophytic and are further noted in
Appendix lV.
b) Hydric Soil
The soil mapped in the Jefferson County Area Soil Survey is listed as
Clallam gravelly sandy loam. This soil type was confirmed on the
property. This soil is not listed on the register for hydric soils and does
not meet the criteria of hydric soils.
c) Hydrology
The hydrology for the majority of the project site comes from precipitation.
Due to the nature of the underlying soils, this water infiltrates into the soil,
No indicators were present verifying the wetland hydrology criteria,
therefore the hydrology criteria is not satisfied.
3
B. WETLAND INVESTIGATION FINDINGS
After reviewing all data relevant to make a wetland determination, with the
exception of the previously identified wetland, it was determined that the project
site would be considered non-wetland.
III. SUMMARY
An investigation performed on September 9, 1998 revealed a small wetland on the
easterly pioperty boundary of the project site. This wetland has been previously
delineated and ilassified by others and was not subject to this investigation. No other
wetlands were noted or observed on the remaining portion of the property.
4
APPENDIX I - SITE LOCATION
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APPENDIX tI - REFERENCES
Environmental Laboratory. 1987. Corps of Engineers Wetland Delineation
Manual, Technical Report Y-87-1, U.S. Army Engineer Watenrvays Experiment
Station, Vicksburg, MississiPPi.
City of Port Townsend Environmentally Sensitive Areas Ordinance, Chapter
19.05, Port Townsend Municipal Code.
Kollmorgen Corporation. 1994. Munsell Soil Color Charts. Macbeth Division of
Kollmorgen Corporation. Baltimore, Maryland.
Olympic Wetland Rescources, lnc., May 1997. Hilltop Wetland. Wetland
Delineation Report.
Pojar, Jim and A. MacKihnon. 1994. Plants of the Pacific Northwest Coast.
Lone Pine Publishing. Redmond, Washington.
Reed, P.8., Jr. 1988. National List of Plant Species that occur in Wetlands:
Northwest (Region 9). U.S. Fish and Wildlife Service Biological Report 88(26.9).
Reed, P.B., Jr. 1993. 1993 Supplement to List of Plant Species that occur in
Wetlands: Northwest (Region 9). Supplement to Biological Report 88(26.9).
U.S. Army Corps of Engineers, Seattle District
Northwest. September, 1984.
Wetland Plants of the Pacific
U.S. Department of Agriculture. August 1975. Soil Survey of Jefferson County
Area, Washington. Soil Conservation Service.
U.S. Department of Agriculture
Soil Conservation Service.
1991. Hydric Soils of the State of Washington
U.S. Department of Fish and Wildlife. 1980. National Wetlands lnventory. Port
Townsend South Quadrangle.
Washington State Department of Ecology. 1993. Washington State Wetland
Rating System for Westernr Washington. Olympia, Washington.
APPENDIX III - WETLAND DEFINITIONS
HYDROPHYTIC VEGETATION
Hydrophytic vegetation is defined in the City of Port Townsend
Environmentally Sensitive Areas Ordinances as:
Macrophytic plant life (i.e., plant life large enough to be perceived
or examined without instrumentation) growing in water or on a
substrate (i.e., a layer of earth beneath the soil surface) that is at
least periodically deficient in oxygen as a result of excessive
water content.
For each area observed, the dominant plant species was noted. The
1987 Technical Manual states that hydrophytic vegetation criterion is met
when more than 50% of the dominant species is hydrophytic. To
determine the wetland plant indicator status, the National List of Plant
Species that occur in Wetlands: Northwest (Reqion 9), U.S. Fish and
Wildlife Service 1988 and the 1993 Supplement was utilized. The
wetland plant rating lists plants in different categories by their wetland
indicator status. The indicator status is summarized in Table 1.
Table 1. Wetland Plant lndicator Status
A.
lndicator Status Definition
Obligate Wetland Plants (OBL)Plants that occur almost always
(estimated probability >99%) under
natural conditions.
Facultative Wetland Plants
(FACW)
Usually occur in wetlands (estimated
probabi I ity 67 o/o-99%), but occasionally
found in non-wetlands.
Facultative Plants (FAC)Equally likely to occur in wetlands or
non-wetlands (estimated probability
340/o-660/o).
Facultative Upland Plants
(FACU)
Usually occur in non-wetlands
(estimated probabil ity 67 o/o-99o/o), but
occasionallv found in wetlands.
Upland Plants (UPL)Occur in wetlands in another region,
but occur almost always (estimated
probability >99%) under natural
conditions in non-wetlands.
B. HYDRIC SOIL
City of Port Townsend defines hydric soil as:
Soil that is saturated, flooded or ponded long enough during the
growing season to develop anaerobic conditions in the upper part.
The presence of hydric soil shall be determined following the
methods described in the Corps of Engineers Wetland Delineation
Manual, Technical Report Y-87-1.
Utilizing the Technical Manual, soil samples from each plot are obtained
using a soil sampler. The samples are observed for hydric indicators
within the first 18 inches of the soil horizon. Hydric indicators include soil
mottling and/or gleyed soils. Mottles are spots of discoloration in the soil
caused by oxidized iron in the soil. Gleyed soils are predominately gray
in color. Soil chroma, or color, was determined using Munsell Soil Color
thgrts, 1994. Other hydric soil indicators can include the depth of an
organic layer, sulfuric odors, soil concretions, and listed as hydric soils on
the local or national Hydric Soils List.
The soils observed in the field were compared to the Soil Survev for
Jefferson Countv Area to confirm the soil type mapped.
HYDROLOGY
Wetland hydrology is defined in the Technical Manual as " ... areas that
are periodically inundated or have soils saturated to the surface at some
time during the growing season." lndicators of hydrology can be present
at any time of the year. These indicators can include observing saturated
soils, water marks, drift lines, sediment deposits, water-stained leaves,
and oxidized root channels in the upper 12 inches of the soil.
c
APPENDIX IV - WETLAND DATA FORMS
DATA FORM
ROUTTNE WETI-AND DETERMINATION
(19S7 COE Wettands Delineation Manual)
ProjecUSite:(.'v
ApplicanUOwnen
lnvestigator:
Date:
County:
State:
Do Normal Gircunstances Exist on the Yes
Yes
Yes
No
No
Nols the site significantly disturbed (Atypical Situation)?
ls the area a potential Problem Area?
needed on reverse.
Community lD
Transect lD:
Plot lD:
VEGETATION
HYDROLOGY
Stratum lndicatorDominant Plant SPecies
11
12.
,t5
il
L.( fl f
r
7
20
j:.( t")J tr, ,^
Percent of Dominant Species that are OBL, FACW or FAC
(exduding FAC).
lndicator
-,Fac-NT*
A- kf;(e'r 6t*Remarks: * UbU
-
Recorded Data (Describe in Remarks):
-
Stream, Lake, or Tide Gauge
6 -
Aerial PhotograPhs
-OtherRecorded Data Available
Wetland hydrology lndicators:
Primary lndicators:
t/r
_ lnundated_ Saturated in Upper 12 lnches
_Water Marks_ Drift Lines
_ Sediment Deposits_ Drainage Patterns in Wetlands
Secondary lndicators (2 or more required)
Vo -
Oxidized Root Channels in Upper 1?
_ Water-Stalned Leaves_ Local Soil Survey Data_ FAC-NeutralTest_ Olher (Explain in Remarks)
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
f cr,",
-(in.)
(ih.)
Remarks
. solLs
WETIAND DETERMINATION
Map Unit Name
(Series and Phase):
(,'rIi.ut (o{i;,##-r'"",
Taxonomy (SubgrouP):C,
Field Observations
Confirm MpOped TVRe? Yes No
Profile Description:
Matrix Color Mottle Colors Mottle Texture, Concretions,ryffiDepth
findtes)
D-12
/LLb*
Horizon (Munsell Moist)(Munsell Moist)re
N/*
A loYte.ol st3 lcY,z.s/u
(.(
Hydric Soil lndicators:
_ Hlstosol_ Histic Eplpedon_ Sulfidic Odor
-Aquic
Moisture Regime
_ Reducing Conditions
-Gleyed
or Low-Chroma Colors
_ Concretions
-
High Organlc Content in Surfa ce Layer Sandy Soils
-
Organlc Streaking in Sandy Soils
-
Listed on Local Hydric Soils List
-
Listed on National Hydric Soils List
_Other (Explain in Remarks)
Remarks: l.l Of -(-
HydrophyticVegetation Present? Yes
Wetland Hydrology Presenf? Yes
Hydric Soils Present? Yes
(Circle)(Circle)
ls this Sampling Point \Mthin a Wetland?
Remarks:
M
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