HomeMy WebLinkAbout1997.10.00 - Wetlands Inventory for 49th Street & Jackman StreetI
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WETLANDS INVENTORY
FOR THE
CITY OF PORT TOWNSEND
49TH STREET PROPERTY
October 1997
prepared for:
Sam Gibboney
City of Port Townsend
617 Tyler Street
Port Townsend, WA 98368
prepared by:
S. Shanewise
Senior Ecologist
Wetland and Wtldlife Consultlng Services
416 S. \Washington
Olympia, \7A 98501
G60) 352-9897
FAX G50) 352-9914
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Ecologist
CONTENTS
Figure 1: Vicinity Map
Introduction........... ............... I
Methods ..... I
Results.... ..,.............2
Figure 2: Schematic Wetlands Map
Figure 3: Soils Map
Figure 4: National Wetlands Inventory Map
Figure 5: PHS/HRTG Map
Appendix I: Wetlands Descriptions
Text
Data Sheets
Category Ratings
Wetland and Buffer Functions
Appendix II: Plant Species List
References
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Sec. 34, T31N, RlW
PORT TOWNSEND 49TH STREET PROPERTY
VICINITY MAP
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-All locations approximate-
FIGURE 1
Two potential wetland areas occur; one non-jurisdictional wetland area based solely on
a minor variation in soil chroma; the second potential wetland boundary would occur at
the edge of regular spring inundation for this system. Both potential areas are
dominlted by Facultative vegetation. If wetland hydrology occurs in most years (8
years out of 10), the regularly saturated or inundated area could be a wetland p9r thg
Atypical Situation Methodology outlined in the Washington State Wetlands Delineation
Manual. This maximum wetland boundary could not be delineated in the absence of
hydrology.
INTRODUCTION
The subject property is comprised of three separate parcels and totals an area of
approximately one-half acre. The site is located in the City of Port Townsend and
under city ownership. Existing land use is primarily abandoned pasture, with two
distinct plant communities, shrub and grassland. No residences or structures occur.
This property is situated within a regionally significant drainage corridor and receives
moderate volumes of runoff during storm events. Seasonal surface water conditions
have been historically reduced by fill and drainage, and more recently reportedly
increased by filling adjacent properties. Due to modifications of hydrology and
marginal hydric soil conditions, wetland delineation conditions are technically difficult.
METHODS
Site Inspection
Property reconnaissance was conducted on 2 October 1997. All areas.of th_e property
were inspected for wetland conditions. All wetland boundaries were field flagged for
identification.
Classification
Wetland characteristics are described within this report according to the Fish and
WildlW Service Cowardin Classification S\stem (1989).
Delineation
Wetland delineation followed a Routine Methodology based upon the Washington
State Wetland ldentification and Delineation Manual (1997) requiring positive
indicators for wetland soil, hydrology, and plants:
Wetland hydrotogy was determined by water conditions in pits or inferred from
approved hydrology indicators if seasonally dry conditions prevailed;
Presence of hydric soil was determined by soil pits dug around suspected
wetlands. Soil was inspected for hydric conditions; inspection included
comparison with the Munsell Color Charts (1992). General soil characteristics
were derived from information contained within the Soil Conservation Service
Soil Survey for Jefferson County (1969);
Occurrence of wetland vegetation was determined through species identification,
estimation of dominance and then assignment of wetland indicator status;
indicator status was assigned based upon the National List of Plant Species That
Occur In Wetlands (1989).
PORT TOWNSEND
State Category Rating
The Washington State Wetlands Rating System for Western Washington (1993), was
used to establish Category Ratings for the wetlands.
WDFW Natural Heritage Review
A data search of the Washington Department of Fish and Wildlife Natural Heritage
System and Priority Habitats and Species data base was performed.
Confirmation
Wetland status depicted in this report has not been confirmed by a government
official, and therefore has no legal status. Agencies with jurisdictional authority
over wetlands at the local, state and federal level need to be consulted for their
signed agreement to our findings before tlere is any guarantee of no change. _ Our
estimation for the accuracy of the unconfirmed wetland boundaries portrayed
within this reportis )95Vo.
Individual Wetland Descriptions
An individual description ofthe wetland system is provided in Appendix I of this
report. The wetland-description contains documentation of the wetland delineation
cohditions, functions and values assessment, classifications, and description of
hydrology, soils, and plants.
DISCUSSION/RESULTS
Gravel Fill Overlying Native Soil in Western Property Vicinity
Throughout the westein property vicinity (lots 7 & 8) gravel fill material has been
spread approximately lainches deep. -The activity appears historical and likely
occurred prior to adoption of the Port Townsend Environmental Sensitive Areas
Ordinanc6 0992) ancl would be an authorized activity under 404 (nationwide26). The
gravelly fill material is unstratified without apparent soil horizons. The underlying
iative soil condition is more characteristic of the San Juan series mapped for this
portion of the property. The underlying soil matrix_chroma is both 1 and 2 without
iedoximorphiifeaturds. Caution should be used in hydric soil determinations in the
San Juan sbries based solely on soil chroma due to the naturally dark parent material.
Regardless of the potential hydric status of the native soil, it occurs beneath twelve
incles of non-hydiic ttt. Therefore, under the Routine methodology, this area would
lack a hydric soil condition and be non-wetland. (See further discussion on potential
use of Atypical Situation methodology, pages 3-4).
Prominent Drainage Corridor
This property is situated in a regionally significant.draina_ge corridor.^The wetland
natur^atly drains northeasterly approximulgly .fS mile to the Chinese Gardens wetland
adjaceni to the Puget Sound'shbleline. The system continues to drain within this
corridor, however, the native drainage route has been modified. The headwater
drainage route has been diverted in numerous locations in the project vicinity. Ditches,
drain tile, and berms have been constructed to reduce and divert surface water
inundation.
2PORT TOWNSEND
Backfilled Ditch
The above drainage corridor connected to a roadside ditch on the north side of 49th east
of Jackman. It appears that this ditch was the primary drainage outlet for the majority
of the surface water which flowed across the subject property. Anecdotal evidence
suggests that filling of the lots on the north side of 49th, east of the subject property,
disrupted this previous flow. This created an impoundment which resulted in increased
surface water conditions on the subject, and neighboring properties. The primary
drainage corridor now occurs through a shallow ditch system between neighboring
properties.
Wetland Boundary per the Routine Methodology
It is our professionatJudgment that the Routine Wetland Delineation Methodology is
the most-appropriate ilelineation method for this site. The Routine methodology
delineates the area which is assumed to be historically wetland and not increased or
decreased by impoundments or ditches. The primary parameter used for delineation
under the Routine methodology is a slight variation in soil matrix chroma. The hydric
soil condition is identified by a 10YR 2lL matrix chtoma, while the adjacent non-
wetland soil is l0YR2l2. No mottling occurs in either soil profile. Facultative
vegetation (monotypic Rosa nutkana) occurs thro-ughout the_wetland/upland interface,
and hydrology is known to occur beyond the delineated wetland boundary. The
wetlaird boundary is flagged with orange tape labeled Wetland Delineation and
numbered 1 through 8, counter-clockwise.
Wetland Boundary per the Atypical Situation Methodology
When one paramet6r (i.e., hydric soil) is absent and wetland hydrology still occurs, the
area could be deemed wetlarid per the Atypical Situation Methodology. In this
particular case, vegetation is hydrophytic (Facultative dominated) and wetland
hydrology is known to occur. Therefore, the minor variation in soil color could be
ifnored-ilf hydrology is present in most yealq. The relativg permanence and cause of
t[e increaseil wetland area should be carefully evaluated when using the Atypical
Situation methodology. Because the increased area of wetland hydrology is largely a
result of filling, the Atypical Situation methodology would not seem appropriate for
this site.
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Category III
Per Ecology'
III wetland.
(10
S
The
small size (-4
The
hydrologically
te93).
Relatively Low Functional Values
This wetl-and rates low for most recognized wetland functions. The primary high value
functions this wetland performs are stormwater detention and sediment-capture. During
runoff events this wetland area is known to detain moderate volumes of stormwater.
Non-Jurisdictional in Size
Per the City of Port Townsend Wetland Ordinance, Category III wetlands of less than
5,000 squaie feet are non-jurisdictional. This wetland area is estimated to be
approxirirately 4,000 squaie feet in size and would therefore be non-jurisdictional. A
sirivey of the-delineated wetland boundary could determine an exact area of this
system.
3PORT TOWNSEND
Excavated Ditch on Bast Side of Lot 7 (See Figure 2)
An excavated ditch which drains into the subject wetland area occurs on the east side ofLot7. A l-soil matrix chroma occurs with Facultative vegetation (Graminoids).
Although this ditch may contain wetland characteristics, wetland ditches excavated in
upland ground are non-jurisdictional per the Port Townsend Environmental Sensitive
Areas Ordinance.
No Priority Habitats & Species Mapped in the Project Area (See Figure 5)
There are no Priority Habitats or Species documented to occur in the project area; none
were observed at the time of study.
CONCLUSIONS & RECOMMEI\DATIONS
Surface Water Conditions Have Likely Been Increased by Impoundment
The filling of lots adjacent to the subject property, which were the primary outlet for
this area, has likely resulted in increased surface water conditions beyond the identified
wetland boundary.
Using the Atypical Situation
The Atypical Situation methodology could identify a significantly greater area as
jurisdictional wetland for this site. In our professional judgment, under these
circumstances (man-made interference of natural drainage route), it is not an
appropriate use of this methodology.
Jurisdictional Ruling by City Staff Necessary
The City of Port Townsend review authority should determine whether the Routine
Methodology (as delineated) or the Atypical Situation Methodology should be used for
a wetland delineation for this site. The delineated wetland area is eligible for a
nationwide 26 permit (ACOE) and non-jurisdictional in size per the Routine
methodology.
Site is Well Suited for Stormwater Detention Facility
The primary function this wetland provides is stormwater detention within a regionally
significant surface water runoff route. Other wetland functions are of low value due to
the small size and historical disturbances to this system. A stormwater detention
facility on this site would help alleviate flooding problems and could enhance wildlife
habitat values if enhancement features were incorporated into the facility design.
4PORT TOWNSEND
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Sec. 34, T31N, RlW
Partial Legend
AgB = Alderwood gravelly sandy loam
SaB = San Juan gravelly iandy ldam
Soil Survey of Jefferson County
Soil Conservation Servlce
PORT TOWNSEND 49TH STREET PROPERTY
SOILS MAP
Sheet # 4O
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Scale 1 :10,O00
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-All locations approximate-FIGURE 3
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Sec. 34, T31N, R1W
Jefferson County
US Department of lnterior Fish and Wildlife Service
Prepared by National Wetlands lnventory
1987
PORT TOWNSEND 49TH STREET PROPERTY
NATIONAL WETLANDS INVENTORY MAP
PORT TOWNSEND NORTH
Scale 1:24,OOO
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-All locations approximate-
FIGURE 4
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Sec. 34, T31N, RlW
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PORT TOWNSEND 49TH STREET PROPERTY
PHS/HRTG MAP
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Port Townsend North
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APPENDIX I: WETLAND DESCRIPTIONS
PORT TOWNSEND 49TH STREET PROPERTY
October 1997
Wetland No. L
Isolated Depression
Area: 4,000 square feet (ocular estimate)
Classification
This isolated wetland depression occurs within a regionally significant drainage corridor
in the Chinese Garden watershed. The system has been historically disturbed by
agricultural activities and numerous drainage modifications. The disturbed wetland is
dominated by a monotypic shrub community with evidence of ditching and
impoundments affecting hydrology.
Cowardin
PALUSTRINE
Shrub, broad-leaved deciduous (Rosa nutkana)
Seasonally flooded, fresh
Mineral (Alderwood series)
State Category Rating: III
Primary Reason(s): Small in size and not hydrologically
species composition and hydrologic isolation for a lower
Boundary Delineation
This indistinct wetland boundary is based solely on a slight variation in soil matrix
chroma. The wetland soil was defined by a 1 soil matrix chroma while the adjacent
upland chroma is 2; mottling is not present. Facultative vegetation occurs throughout
tlie wetland and adjacent upland. Surface water conditions are known to persist beyond
the delineated wetland boundary. The following table depicts general field indicators
used to delineate this wetland boundary:
WETLAND UPLAND
Epilobium watsonii
1 chroma
isolated. Lacks the plant
Category IV rating.
2 chroma
VEGETATION
SOILS
HYDROLOGY
BOTH
Rosa nutkana
Rubus discolor
Rumex crispus
Ranunculus repens
Alderwood series
no mottles
1PORT TOWNSEND APPENDIX I
seasonally flooded
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Functions & Values:
The following is a list of commonly recognized wetland functions, with an estimated
relative value rating and a brief conceptual statement regarding the primary factor
affecting this rating. A summary table is also provided for quick reference.
HIGH MODERATE LOW
123
Sediment Capture HIGH
Seasonal flooding, small size limits Sediment Capture function
HIGHStormwater Detention/Retention
Seasonally flooded, minor depressional basin with restricted outlet
Surface Water Runoff Route MODERATE
Located within fragmented drainage corridor, primary drainage route for system
Surface Water Supply
Seasonal flow, Chinese Garden watershed
Biofiltration
Dominated by woody vegetation
Groundwater Exchange
Surface water system
Plant/Animal Habitat Value
Monotypic vegetation and small in size
Flood Attenuation
Not associated with riverine system
MODERATE
LOW
LOW
LOW
NA
Hydrology
Tiis wetla:nd occurs within the Chinese Garden watershed. The basin is one of many
fragmented systems within a prominent drainage corridor. The wetland appeSrs
entirely influenced by surface water conditions with little oT no groundwater influence.
Wetlaid hydrology has been diverted by a filled ditch which once received most of the
runoff from this system. Surface watef conditions are now_significantly increased with
only a minor outl6t route through neightoring properties_. S-tpding water is now
kndwn to occur in most years beyond the delineated wetland boundary.
Soils
This wetland is mapped within an Alderwood gravelly sandy loam soil formation. The
Alderwood series is iypically not hydric and the wetland may be in an unmapped hydric
soil inclusion. A 10YR 2/l-soil matrix chroma without mottles occurs within the
delineated wetland boundaries.
2PORT TOWNSEND APPENDIX I
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Vegetation
A monotypic shrub community dominated by Rosa nutkana occurs throughout this
wetland and adjacent upland ground. The plant community is characteristic of
abandoned and disturbed pastures.
Plant Community Characterization
The following plants are the dominant species which charucteize this community:
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DATA FORM
ROI'TTNE ONSITE DETERMINATION METHOD
Field Investigauor(s): M. Bennett
Project/Site: 49th & ,Jackman
Applicant/Owner: Port Townsend
Date: 2 October 1997
State: WA County: .fefferson
Plants Community #/Name: L-IN
I Do normal environmental conditions exist at the plant community? Yes
Have the vegetation, soils, andfor hydrology been significantly disturbed? No
Indications of draining, ditching, and berms
VEGETATION
Indicator
s
H
H
H
H
s
1
2
3
4
5
5
r-es
Rosa nutkana
EpiTobiun watsonii
Polygonum persicaria
Rumex crispus
Ranuncul.us repens
Rubus discoTor
FAC
NI
FACW
FAEW
FACW
FASU-
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1)
Percent of dominant species Ehat are OBL, FACW, and/or FAC: > 50 t
Is the hydrophytic vegetation criterion met? Yes
Rationale: DominanL spp. FAC and wetter
SOILS
Series/phase: Alderwood gravelly sandy loam Subgroup: DysEric Entic Durachrepts
Is Ehe soil on the hydric soils list? No
Is the soil a Histosol? No Histic epipedon present?
Is the soil: Mottled? No GleYed?
Matrix Color: 10 YR 2/L MoEtIe Colors:
Other hydric soil indicauors:
Is the hydric soil criterion met? Yes .
Rationale: 1 chroma
ITYDROIJOGY
Is the ground surface inundated? No Surface Water Depth:
Is tshe soil saturated? No
Depth to free-standing water in pit/soil probe hole:
other field evidence of surface inundaEion or soil saturation:
Is the wetland hydrology criterion met? Yes
Rationale: Flooding into early spring months of most years verified by city staff and
neighbors.
.IURI SDICTI ONAI, DETERMINATION AIID RATIONAI,E
Is tshe plant community a wetland? Yes
Rationale for jurisdictional decision: Positive for all 3 parameters
1 our-
DATA FORM
ROIITINE ONSITE DETERMINATION METHOD
Fie1d Investigator(s): M. Bennett
Project/Site: 49th & Jackman
Applicant/Owner: Port Townsend
Date: 2 October 1997
State: WA County: .fef ferson
PlanE CommuniEy #/Name: 1-OUI
Do normal environmental conditions exist at the plant community? Yes
Have. the vegetation, soils, andfor hydrology been significantly disturbed? No
VEGETATION
Indicator
s
s
1
2
Rosa nutkana
Rubus discoTor
Series/phase: Alderwood gravelly sandy loam
Is the soil on Ehe hydric soils list? No
Is the soil a HisEosol? No
Is the soil: Mottled? No
Matrix Color: 10 YR 2/2
Other hydric soil indicaEors.
Is the hydric soil criterion met? No
Ratsiona1e: 2 clhroma without mottles
FAC
FACU-
Subgroup: Dystric Entic Durachrepts
Histic epipedon present?
GIeyed?
Mottle Colors:
PercenE of dominant species that are OBL, FACW, and/or FAC: 50t
Is the hydrophytic vegetation criterion met? yES
Rationale: 50t Facultative
SOILS
IIYDROLOGY
Is the ground surface inundated? No Surface Water Depth:
Is the soil saturated? No
DepLh to free-standing water in pit/soil probe hole:
other field evidence of surface inundation or soil saturation:
Is the wetland hydrology qFiterion meE? Yes
Ragionale: SEanding water into spring months in most years as documented by city staff
and neighbors.
iN'RISDICTIONAI, DETERMINATION AND RATIONA],E
Is Ehe plant community a wetland? No
Rationale for jurisdictional decision: Non hydric soil condition. hydrology created from
drainage barriers, not trNormal circumstanceg. rl
Wetlands Rating Field Data Form
Background lnformation:
Name of Rater:,1 2 u Affiliation:46?6.t:Sate. rt elLa *
Name of wetland (if known): f
Government Jurisdiction of wclland
krcation: l/4 Scction: of l/4 S:fl / Range: t
Sources of lnformation: (Check all sources that apply)
Site visit: '/ uscs ropo Map:
-
NwI ^^o, / Aerial Photo' / Soils survey : ./
Other: ./ nocrit""/a<
When The Field Data form is complete enter Category here:z
Q.l. High Quality Natural Wetland
Answer this question if you havc adcquatc inlirrmation or cxJrericncc to rlo su
If not find som@ne with (he expcrtise to answer the questions. Ttrcn, if tlrc
answer to questions'la, lb and lc are all NO, con(act the Natural Heritage
program of DNR
1a. Human caused disturbances
ls there significant evidence ofhuman-caused changes to topography or
hydrologyof the wetland as indicate<l bi any of the following conclitions?
Consider only changes.that may have taken place in the last 5 decades. The
impacts of changes done earlier have probably been stabilized and the wetland
ecosystem will be close to reaching some new equilibrium that may represent
a high quality wetland.'
la'I. Upstream watershed > lLq, impcrvious.
la2. Wetland is ditchcd and water llow is not ohstructcd.
la3. Wetland has been gradul, filled, krggcd
la4. Water in wetland is ctrntrolleil by dikes, weirs, etc.
1a5. We0and is grazed.
1a6. Other indicators of disturbance (list below)
Circle Answers
Ycs:tu Q.2
to Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
No: go to lb.
25
lb Are there populations of non-native plants which arc cunently prqsent'
cover more than l07o of the wetland, and appear to bc. invading native
populations? Briefly
Infbrmation source(s)
describe any non-native plant Jrrpulations and
lc. Is there evidence of human+aused clisturbanccs which have visibly
degraded water quality. Evidence of the degradation of water quality
include: direct (untreated) runoff from roads or parking lot.s; presence'
or historic evidence, of waste dumps; oily sheens; the smell of organic
chemicals; or lifestock use. Briefly describe:
YES: go to Q.2
No: go to lc.
YES: go to Q.2
NO: Possiti,le Cat. I
con(act DNR
Q.2. lrreplaceable Ecological Functions:
I)ocs the wetland: <
O have at lea^st ll4 acreolorganic soil.s degrr than 16 inches
ancl the wetland is relativcly undisturbcd; OR
[IIf the answer is NO because the wetland is disturhed briefly de.scritrc:
Indicators of disturbance may include:
- Wetland has treen graded, filled, loggocl;
Organic soils on the surfacc are driecl-out for
more than half of the Year;
- wetland receives direct stormwater runoff from
urban or agricultural areas.l;
OR:
O have a tbrestsl class greater than I acre;
OR
O have characteristics of an estuarine systcnu
OR
O have eel grass. floating or non-floating kelp brxls?
@^"gotoe.3)YES go to 2a
YES: Go to 2b
YES: Go to 2c
YES: Go tu 2d
2a. Bogs an&Fens
Are any of the tfuee following conditions met for the area of organic mil?
2a-1. Are Sptngnum mosscs a common grouncl cover (>30%) arrl thc
cover of invasive sgrecies (eee Table 3) is less than l0%?
Is the area of sphagnum mosses ard deep organic soils > ll2 acre?
Is the area of sphagnum mosses arxl deep organic soils l/4-ll2 acre?
2a.2.Is there an area of organic soil which has an emergent class with at least
one species from Tahle 2, and cover of invasivc spocies is < l(l% (se Table 3X
Is the area of herbaceous plants and dep organic soils > lf2 rcte'!
Is the area of herbaceous plants ancl dttp organic soils l/4- l/2 acre?
YES:
YES:
Category I
Category II
NO: Go toZa-3
YES:
YES:
Category I
Category II
NO: Gu to 2a.3
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2a.3; [s thc vegctation a mixturc of only hcrbaccttus plants and Sphagnum
mosses with no scrub/shrub or forcstcd clas.scs'l
Is the area of herbaceous plants, Sphagnum, and deep organic
i:lfiJf lfl,ilr.*us pranrs, sphagnum, and deep organic
soils 1/4-ll2 acre?
YES: Category I
YES: Category II
NO: Go to Q.3.
Q.2b. Mature forested wetland.
2b.1. Does 50% of the cover of up1rcr forest canopy consist of cvergrccn
trees older than 80 years or deciduous trees oldcr than 50 years?
Note: Ttre size of Eees is often not a measure of age, and size cannot
be used as a surrogate for age (see guidance).
2b.2. Does SOVo of the cover of forest canopy consist of evergreen trees older
than 50 years, AND is the structr.rral diversity of thc ftlrest high as
characterized by an additional layer oftrees 20'-49'tall, shrubs 6' '20',
tall, and a herbaceous groundcover?
2b.3. Ddes < 25Vo of the areal cover in the herbaceouVgroundcover or
the shrub layer consist of invasive/exotic plant species from the list on p. I 9?
YES: Category I
NO: Go to 2b.2
YES: Go to 2b.3
NO: Go to Q.3
YES: Category I
NO: Go to Q.3
Q.2c. Estuarine wetlands.
2cl. Is the wetland listed as National Wildlife Refuge, National Park,
National Estuary Rqserve, Natural Area Preserve, State Park, or
Educational, Environmental or Scientific Reserves designa(ed under
wAc 332-30-15r?.....
2c.2. Is the wetland > 5 acres:
Note: If an area contains patches of salt tolerant vegetation that are
l)Jess than 600 feet apart and that are separated by mudflats that go
dry on a Mean [,ow Tide, or
2) separated by tidal channels that are Iess than l0(l feet wi<Je;
all the vegetated areas are to bc considere<l togcther in calculating
the wetland arga.
or is the wetland l-5 acres;
or is the wetland < I acre?. .
YES: Category I
NO: Go to2c.2
YES: Category I
YES: Go to 2c.3
YES: Go toZc.4
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2c.3. Does the wetland meet at least 3 of the folkrwing 4 criteria: . .
- minimum existing evidence of human related disturbance such as
diking, ditching, filling, cultivation, grazingor the presence of non-
native plant sgrccies (see guidance for delinition); '
- surface water connection with tidal saltwats or tidal freshwater;
- at least 75% of the wetland has a 100' buffer of ungrazed pasture,
open water, shrub or forest:
- has at least 3 of the following features: low marsh; high marsh; tidal
channels; lagoon(s);woodydcbris; orcontiguous freshwater wetland.
2c.4. Does the wetland meet all of the four criteria under 2c3. (aklve)?
YES: Category I
NO: Category tI
YES: Category II
NO: Category ttl
Q2d. Eel Grass and Kelp Beds
2d.1. Are eel grass beds present?.
2d.2. Are there floating or n<rn-floating kelp betl(s) present with grcater than
507o macro algal covcrinthe monthof Augu.st orScptember?.... .....
YES: Category I
NO: go toZd.z
YES: Category I
NO: Category II
Q.3. Category lV wetlands.bJo
3a. Is the wetland: less than I
hydrologically isolatcd and,
mmprised of one vegetated class that is
by one species from Table 3 (page 19) or Table 4 (page 20 )
3b. Is the wetland: less than two acres
and.Sdrologicallyisolated, -- f s
wittr@ 90% oiareal cover is any combination of
species from Table 3 (page 19)
3c. Is the wetland excavated ftom upland ind a pnd smaller than I acre
withcrut a surface watcr connection to streams. lakes, rivers, or other
wclland. and has < 0.1 acrc of vegd:{ation.
(
llSlCategory IV
4o'do to ru
YES: Category IV
@o to r"
YES: Category IV
@otoe.4
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Q.4. Significant habitat value.
Answer aII questions and enter data rcqucstcd.
4a- Total wetland area
Estimale area, sclect from choices in Lhe near-right column, and score in lhc
far column:
Entcr acreage ofwetland hcrc: acrcs, and sourco:-
Circle scrtres that qualifyac[r$ pain$>2fi) 6
40- 2fit 510-40 4
5- 10 3l-.5 2o.r-l o.<().1 0
4b. Wetland classes: Circle the wetland classes below that qualify:
Open Water: if tlre area of open water is > ll4 acrre
Aquatic Beds: if the area of aquatic beds > ll4 acre,
Emergent: if the area of emergent class is > ll4 acte,
if ttre area of scrub-shrub class is > l/4 acre,
Forested: if area of forested class is > ll4 acre,
Adcl the number of wetland classqs, above, that qualify, arul lhen
Score according to the columns at riglrt.
e.g. If there are 4 cla.sses (aquatic becls, Qpcn walcr, emergcnt &
scrub- shrub), you would ckcle 8 fnints in the far right column.
# ofclasses
I
2
3
4
5
.....:.6.......8
.......10
'lc. Plant species diversity.
For each wetland class (at right) that qualifis in
4b above, count the numbcr of different plant sgncics
you can find ftat cover more than 5% of the grouncl.
You do not have to namethem
Score in column at farright:
e.g. If a wetland has an aquatic bed class with 3 sSrecies,
an emergent class with 4 species and a scrub-shrub
class with 2 species you would circle 2, 2, and I in the
far column.
Note: Any plant species with a cover of > SVo
quali.fies for lnints within a class, cvcn lhosc
that are not of that cl&s.s.
Chss
Aquatic Be<l
# snccicr- in class Pointst.
2
3
>3
()
I
2
3
0
1
2
3
0
Emagent I
2-3
4-5
>-5
Scruh-.Shrub I
2
3-4
>4
2
3
Forestcd I
2
34
>4
0
I
2
3
29
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{
4d. Structural diversitY.
If the wctland has a forqstcd class,,add I point if cach of thc following
classcs is prcsent within thc forcsted cla.ss and is largcr than l/4 acrc:
-herbaceous ground cover. .
Also add 1 point if there is any "open water" or "aquatic bed" class
immediately next to the forested area (ie. there is no scruVshrub or
emergent vegctation htwccn thcm).
'shrubs.
-trees > 50' tall
-trees 20'- 49' taU
YES. I
YES-1
YES-I
YES. I
YES. I
4e. Decidc from the diagrams bclorv whcthcr inl.cmpcrsion bctwccn
wctland classcs is high, modentc, low or none? If you think thc
amount of interspcrsion falts in bctween thc diagrams scorc accordingly
(i.c. a modcratcly high amount of instenpcrsion would tscorc a 4,
whilc a modcratcly low amoirnt would scorc a 2)
none low
moderate moderate
low
high
YES= I
YES= I
YEs@
YES= 2
YES= I
YES= I
4f. Habitat features.
Answer questions below. circle.features that apply, and scorc to right:
ls there evidcncs that ttre opcn or standing watcr was causcd by bcavcrs
Is a heron rookery located within 3ffi'L /A(at l.t
Arc raptor nesVs located within 3ffi? t t t
Arc thcrc at lcast 3 standing dcad trccs (snags) per acrc grcatcr than
10" in diametcr at "brcast hcight" (DBHX.
Arc thcrc at lcast 3 downed logs pcr acrc with a diamctcr
> (r" lor at lcast l0' in lcngth?
Arc thcrc arcas (vegctatcd or unvegetatcd) within ttrc wctlurd that arc
pondcd for at lcast 4 months out of thc ycar, and thc wetland has not
qualified as having an opcn watcr class in Qucstion 4b. ?
30
49. Connection to streams. (Score one answer only.)
49.1. Does the we0and provicte habitat for fish al any time of the year AND
does it have a pcrennial surface water conncction to a fish bearing strcam.
4g.2 Does the wetland providc fish habitat scasonally AND dtrc.s it havc
a seasonal surface watcr conncction to a {ish bcaring strcam.
4g.3 Does the wetland function to exfnrt organic mattcr tfuough a surlhcc
water connection at alt times of the year to a Jrerennial stream.
4g.4 Does the wetland function to export organic matter through a surfacc
water cornectjon to a stream on a seasonal basis? 4tfutu4
YES=6
YES=4
YES=4
4h. Buffers.
Score tlre existing buffers on a scale of l -5 based on the following ftiur <Iuscriptions.
If the iondition of the buffers do not exactly match the descrigxion, score cither a
point Ngher or lower depending on whcther the huffers are less or more degraded.
Forest, scmb, native grassland or open water buffers are present lbr
more than l00'around 957o of lhe circumference.
Forest, scrub, native.grassland, or open water buffers wider than l(X)'
for more than lf2 of the wetland circumference, or a forest, scrub,
grasslands, or open water buffers for more than 50' around 95Vo of lhe
circumference.
Forest, scrub, native grassland, or open water huffers wider than l(X)'
for more than l/4 of the wetland circumference, or a forest, scrub, native
grasslurd, or opcn water buffers wider thah 50' for more than ll2 ttf thc
wetl and circu mference.
No roacls, buildings or pavcrl arcas within l(X)'of tlrc wctlilnd lor Iuurc tltan
95% of the wetlan<t circumt'crcncc.
No roaG, buildings or paved areas within 2-5'of the wetland for ntore
th'an 95% of thecircumference, or
No roads buildings or paved areas within 50'of the wetland for more than
ll2 of the wetland circumference.
Paved areas, irldustrial areas or rqsidendal cons(ruction (with less than 5(I
betwecn houses) are less than 2.5 fecf tiom the wetland for morc than 95%
of the circumference of the wetland.
Score = -5
Score = 2
Score = 2
Score = I
Score = 0
XoreQ
I3
4i. Connection to other habitat areas:
.Sclcvt lhc duscriplion wldclt hcsl ntalcltcs llrc silc hcing cvaluatc<J
-Is the wetland conncctql to, or part of. a riparian corriclor at lcast l(X)' wicle
connecting two or more wetlands; or, is there an upland conncction prcsent >l(n'
wide with good forest or shnrb cover (>25Vo covcr) connecting it wilh a
Signilicant Habitat Area?
- Is the wetland connected to any other Habitat Area with either l) a forested/shrub
conidor < 100' wide, or.2) a a conidor that is > 100'wide, but has a low vegetative
cover less than 6 feet in height?
-Is the wetland conn@ted to. or a part ol, a riparian curridor betwccn 50 - l(X)' wide
wilh scruh/shnrb or ftrrtrst cuvcr conncctirtn tu ulhcr wctlan<ls?
- Is thc wctland conncctql to any olhcr Habi(at fuea with narr()w crrridor (<l(XI)
ruf hrw vcgctation (< 6' in lrcighl)?
- Is the wetland and its buffcr (if the buffcr i.s lqss (han 50' widc) complctcly isolated
by dcvelopment (urban,. residential with a den.sity greatcr than ?acre, or industrial)?
YES=5
YES=3
YliS = 3
Yhs
YES =0
Now add the scores circled (for Q.5a - Q.si above) to get a total.
Is the Total greater than or equal to 22 points? YES = Category
NO=
II
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32
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APPENDIX II: PLANT SPECIES LIST
PORT TOWNSEND 49TH STREET PROPERTY
October 1997
I
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.'.5 r:
watsonii
Polygonum persicaria
Ranunculus repew
Rosa nutknra
Rttbus discolor
Rwnex crispus
portPll'lT. tst
PLANT SPECIES LIST
COMMON
Watson s
grass family
lady's thumb
creeping buttercup
nootka rose
Himalayan blackberry
curly dock
INDICATOR
FACW
FACW
FAC
FACU-
FACW
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REFERENCES
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979, Reprinted 1992.
Classification of Wetlands and Deepwater Habitats of the United States. U.S.
Fish and Wildlife Service, FWS/OBS-79131,103 pp.
Hitchcock, C.I., andA. Cronquist. L976. FloraofthePacificNorthwest. University
of Washington Press, Seattle, WA.
Munsell Color. 1992. Munsell SoiI Color Clwns. Kollmorgen Corporation
Baltimore, Maryland.
National Wetlands Inventory Maps. Circa t987 - 1989. US Deparnnent of the the
Interior.
Reed, P.B. Jr. 1989. National List of Plant Species thal Occur in Wetlands: National
Summary. USFWS Biological report 88(24). ZMpp.
U.S.D.A. Soil Conservation Service. 1969. Soil Survey of Jffirson Couttty Area,
Washington
U.S.D.A. 199I. Hydric Soils of the United States.
Washington Deparrnent of Ecology. LggT . Washington State Wetland ldentification
and Delineation Manual. Publication #96-94.
Washington Department of Ecology. L993. Washington State Wetlands Rating Slstem
for Western Washington Publication #93-74.
portrefs.W
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4
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NOTE: All locations aPProximate
VERTICAL DATUM:
MEAN SEA LEVEL, NGVD 1 929
BENCH MARK:
JEFFERSON COUNTY GPS CONTROL PT # 122
REBAR WTH ALUM. CAP 88.33 NW OF PT
# 1O2 ELEV. _ 99.62
*'en
49TH ST.
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Wctland and Wlldllfc Blololy
416 S. Washington
Olympia, VUA 98501-
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CITY OF'PORT TOWNSEND
JACKMAN & 49TH SITE
SCHEMATIC WETLAND MAP
S34, T31N, RlW
exmrlcr*.1
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@
: Wetland \
= Delineated wetland boundary
: Data points
E> = Direction of flow
-
: Property boundary
-i
Approximately 1" = 40'
October 1997 FIGURE 2