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Wetland Delineation Report
Hilltop Wetland
City of Port Townsend, WA
May 1997
Prepared for
William Wolcott
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Prepared by:
Olympic Wetland Resources, lnc.
Dixie Llewellin, Principal Bioiogist
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0lympic Wetland Resources
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Contents
Description of Site
Introduction
Methodology
Findings
Vegetation
Hydrology
Soils
Wetland Classification
Summary
Literature cited
Tables
1 Summary of vegetation
2. Summary of soil features
Appendix A
Wetland Delineation MaP
Appendix B
Locatibn MaP
National Wetland Inventory MaP
Soil Survey
COE Wetland Data Sheets
WSDOE Wetland Rating Field Data Form
William Wolcott Wetland Report 97-0069 Olympic Wetland Resourcesi lnc. 5 1997
0lympic Wetland Resources
Port Townsend, WA 98368
360 385-6432 dllewell@olympus.net
May 20,1997
William Wolcott
705 R Street
Port Townsend, WA 98368
Report File Number:
Report Subject:
97-0069
William Wolcott Wetland Delineation Report
William Wolcott Delineation Report
Hilltop Wetland
Description of Site
Legal Description: Township 30 North. Range 1 West. Section 9. Port Townsend, WA.
Slope: 0 to 5oh,
o Location: City of Port Townsend, WA, Parcel # 001094003 Tax 9
Soils: CmC Clallam gravelly sandy loam (tVe-1)
The Hilltop wetland exists in a distinct ditch (an average of 42 inches below grade) west of the
gravel parking lot for the Hilltop Tavern. The parcel west of this wetland is a flat grassy field'
Sloping uphill and to the north is the parcel owned by William Wolcott. The wetland has been
acting as a catchment basin and drainage corridor for the adjacent properties.
No culverts were seen directly south, under Highway 20, and the wetland system does not extend
in that direction. In the lower south-east end of the wetland an 8 inch pipe apparently drains
excess water to the east where it connects with a storm drain from the Hilltop Tavem parking lot.
From this point a 12 rnchpipe directs water towards Howard Street and eventually across
Highway 20.
1WilliamWolcottWetlandReport97-0069 Olympic Wetland Resources, lnc. 5 /97
the wetland in question, vegetation diversity, wetland types, and habitat value. Higher quahty
wetlands are assigned larger buffer associations'
wetland boundaries were flagged at approximately 50 foot intervals. Two data points were
established to determine wetland and upland botrndaries. At each of these points information was
recorded for soils, vegetation and hydrology. The complete Corps of Engineers data sheets can be
found in Appendix B.
Findings
This wetland has well established trees and shrubs, and has firnctioned as a stormwater retention
site for many years. The wetland is confined to a channel where a distinct elevation drop clearly
defines the edge. At the north end of the drainage this distinction is not as clearly defined. Two
data points inihat location verifies the upland/wetland edge. The south west corner post marker
of the Wolcott property is approxim ately 25 feet outside the wetland boundary.
The Hilltop wetland measured approximately 160 feet in length by 40 feet at the widest point
approximately 6,400 square feet or '67 of an acre)'
This wetland is not recorded on the National Wetland lnventory Maps CNWI) or the City of Port
Townsend Wetland Maps (Draft 95). The Jefferson County soil survey classifies the soil as
Clallam gravelly sandyioam (Cmc) which is not listed as a hydric soil. Several wetlands within
the port Townsend city limits are found within this soil series. Clallam soils consists of a hard
glacial till layer which drain slowly causing water to flow lateraliy and pool in depressions.
Vegetation
Wetland plant species must constitute greater than 50% of the total vegetation present to meet the
qualification u, u site dominated by hydrophytic vegetation. Dominance of plant species is
determined by calculating actual aerial cover within a 30 foot radius of the data point. Commonly
occturing plant species hive been rated bythe United States Fish and wildlife (USF$D, National
Lirt of PIarrt Sp"ci., fltat Occrr in Wetlands: No.thwest (It"eiot 9) as to their frequency of
rr"" io *"U*dr *d oott-*etlands. Dtring the fieldwork, each species was recorded at the
sample data sites, and given a rating according to their indicator status'
The upland portion of the site is dominated by Madrona, Douglas' t*d, oceanspray. The
wetland plant community consisted mainly of Scouler willow, Nootka rose, Cattails, and Sedges.
Several iarge euaking aspen were found on site near the southwest comer marker of the Wolcott
property. fr"tfuna vegetation was found primarily in the gully between the Hilltop Tavem
i*i.i'd lot and the opin field, therefore the wetland edge was easily identified along the east and
west boundaries. The Highway defined the southem border. In the transition zone at the north
enJ, wh"r" both wetlana ana upland vegetation merged, soil pits were dug to confirm exact
wetland boundaries. A summary of dominant on site vegetation for each data point can be found
in Table 1.
JWilliamWolcottWetlandReport97-0069 Olympic Wetland Resources, lnc. 5 /97
IlydrologY
Wetland hydrology is defined in the 1987 Corps of Engineers Manual as "areas that are periodically
inundated or have soils saturated to the surface at some time during the growing season".
Indicators of hydrology include visual observation of inundation or soil satwation, water-stained
leaves, cracking at the soil surface or sediment deposits. Positive signs of hydrology were present
during the May 97 delineation.
Surface saturation and ponded water up to 10" deep was observed during the May field visits. In
general, hydrology was confined to the ditched area. Since the actual wetland edge depended on the
fr.r.n.. of water within the top 12 inches of the surface test pits were dug in the northern end of
the wetland where the ground appeared dry and the boundaries were not obvious.
The wetland had a foul sewage odor and contained alarge amount of garbage' According to
Richard Staph, the property owner to the west, a 10 inch pipe enters the central section of this
wetland receiving overflow from the Hilltop Tavem septic system.
Soils
A hydric soil is a soil that formed under conditions of saturation, flooding or ponding long
rrorrgh
during the growing season to develop anaerobic conditions in the upper part. It is not
alwais possible to directly evaluate soil conditions. For example.when water can be observed in
the slil at depths less than 12" for longer than l2.5Yo of the growing season, indicators are used
to infer pr.rJrr.. of hydric soil. Some indicators for nonsandy hydric soils include reducing soil
conditions, presence of certain low chroma soil matrix colors, or presence of soils appearing on a
hydric soils-list. The soil matrix is the largest single colored area seen on the face of a soil clod.
The chroma is that portion of the color that describes the relative purity or strength of the color.
Chroma indicates the degree of saturation of neutral gl:ay by the color. The chroma increases
numerically as the propottiotr of white light decreases. Chroma is the last number given on the
Munsell color designuiiorr, which appear in the appendix in the data sheet soil logs. Chroma
ranges from /0 for neutral colors up to /8 for the strongest colors (Soil Survey Manual).
The average growing season in Port Townsend extends from approximately February 28 to
Novembeizq aadin! up b 324 days. On March 5, 1997, soil temperature at a site close to the
same elevation as tfre suU;ect site was 43o F, indicating the growing season was on schedule.
i*.t". and one-half percent of the growing season is 33 days. Thus, if soil saturation within 12"
of the surface is observed on or aftei Apnl2,then duration of saturation is sufficient to meet the
hydric soil criteria.
The subject site is mapped with Clallam soil series. Appendix B contains a portion of the
Jefferson County SoiiSurvey with the subject parcels shown. The Clallam soil is not listed or
does not contain hydric inclusions. The test pits dug on site confirm similar soil characteristics
of Clallam soil by the observed color and texture. Withitr the wetland, soil colors had a lower
chroma indicating of wetland conditions. Water levels were within 5 inches of the surface
confirming hydric soil conditions.
5WilliamWolcottWetlandReport97-0069 Olympic Wetland Resources, lnc. 5I97
References
Literature Cited
Cowardin, L.M.V. Carter, F.C.Goblet, and F..T. LaRoe. i979. Classification of wetland and
deep water habitats of the U.S. Fish and Wildlife Service. Washington,DC.I9T9
Hitchcock and conquest, 1973. Flora of the Pacific Northwest.
Federal Interagency Committee for Wetland Delineation. 1987. Federal manual for identifying
and dilineation jurisdictional wetlands. July 1994_update, U.S-. _$ly.9qtp ol
itrgitr".rr, U,S, dnvironmental Protection Agency, U.S. Fish and Wildlife Service, and
USDA Soil Conservation Service.
Guard, Jennifer, 1995. Wetland Plants of Oregon and Washington. Lone Pine Press. Redmond
Washington.
Leonard, William P.,Igg3. Seattle Audubon Series. Amphibians of Washington and Oregon.
MacBeth, Div. of Kollmorgen lnstruments Corp., 1992 Munsell Soil Color Charts.
Mitsch and Gosselink, 1993 Wetlands.
pojar, Mackinnon , 1994. Plants of the Pacific Northwest coast.
port Townsend, City of. November,lgg2.Sensitive areas ordinance. City of Port Townsend.
port Townsend, City of. November, 1995. Wetlands Inveptory. Sheldon & Associates.
Reed, porter, 1988. National List of Plant Species that Occur in \iletlands, Region 9.1993
update.
Washington State Wetland Department of Ecology-.-Yg9h, 1997. Washington State Wetland
identification and Delineation Manual, #9 6-9 4'
U.S.D.A., Dept. of Agricultwe.Igg4Pocahontas Press. Keys to Soil Taxonomy.
U.S.D.A., Soil Conservation Service, 1975. Soil Survey of Jefferson County.
Appendix A
Wetland delineation map
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Wetland Bounda ry uL*5
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William Wolcott Wetland Report
Hilltop Wetland
Approximate Wetland Boundaries
Data Points and Flagged Edge
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Appendix B
Location Map
National Wetlands Inventory MaP
Soil survey
COE Wetland data sheets
WSDOE Wetland rating field data
William Wolcott Wetland Report
Site Location
Olympic Wetland Resources, Inc.
May 1997
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William Wolc
Site
ott Wetland Report
Location
JEFFERSON COUNTY AREA, WASHINGTON
R. 1W.
SHEET NUMBER 42
ST
Olympic Wetland Resources, Inc
May 1997
P o...R
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Clen Coue
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FEET CmC (Joins sheet 45)
I
Map Unit Nanre
Series & Phase)
f*t.(0.{LA^ Drainase Class lnoA&fiut? dH-,u
C-ttra
Field obserriations confi rm ff;i)l.__-/No
Taxonom sub rou U ma d I
Profile Description
Mottle abundance
size & contrast
Matrix color
Munsell
nioist)
Nlottle colors
Munsell
moist)
Depth
inches)
Horizon
btuzlto-8
loYKalt4- tb
v
Texture. concretlons.
structure, etc.
Drawing ol sorl
profile
mg!th-d9sg-!-pjra! )
Hydric Soil Indicators: (check all that apply)
Histosol
Histic Epipedon
Sulfldic Odor
Aquic Moisture Regime
Reducing Conditions
Matrix chroma < 2 with'mottles
Mg or Fe Concretions
High Organic Content in Surface Layer of Sandy Soils
Organic Streaking in Sand,'" Soils
Listed on National/l-ocal Hydric Soils List
G
or Low-Chroma (-l) matrrx Other CX lain in remarks)
no@Hydricsoilspresent?
Rationale for decision/Remarks
no
no
no
@ nores)
Wetland Determination (circle)
Wetland h t?
Is the sampling point
within a w'etland?
Hydrophytic ve getation present?
Hydric soils present?
5
NOTES:
Revised -ll97
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Project/Site: *tLLT)p wqLk^r
ApplicanVowner: r-6/l(IJAfn VJO L CDff
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Do Normal Circumstances exist on the site?
Is the site significantly disturbed (atypical situation)?
Is the area a potential Problem Area?
no
@,9yesyes
Ex anation of area:or
VEGETATION (For strata, indicateT= tree; S = shrub; H = herb;V = vine)
Dominant Plant Species Stratum qo cover IIndicatorDominantPlantSpeciesStratumVocoverIndicator
55 +N.rT
FNCT15
trftLUS20
FALqstRrfiftNrrr-ntn
t
25mcU5SYrttPtfncm-lm k otb
on
Water Marks: yes no
Drift Lines: yes no
Oxidized Root Qive roos)
Channels <i2 in. Yes no
FAC Neutral: yesnoDepthtofreewaterinpit:
Depth to saturated soil:
Fla^t6- inches
ArOgC_ inches
Nq)9e- inchesDept. of inundation:
Check all that apply & explain below:
Stream, Lake or gage data:
Aerial photographs:Other:
DATA FORM I (Revised)
Routine Wetland Determination
WA State Wetland Delineation Manual or,
1987 Wetland Delineation
Date: S( tz
Counry: JefuGS'd!
State: \A/A
S/TIR:
Community
Transect ID:
Plot ID: DP +l
ATION INDICATORS:Arr-- No t\t\rc/fw PUT UAUaU,L( U
3
HTDROPIryTIC VEGET
FAcw, & eec I b?oTrc7oofdominantsOBL,l
l'/3
Check all indicators that apply & explain below:
Visual observation of plant species growing in
areas of prolonged inundation/saturation
Morphological adaptations
t toL'wCatu'L T+tft^J tod%
ua$f|rrloq
au,ftfuct-ft.tAdodc-ro od
Q=
Technical Literature
Hydrophytic vegetation Present?
Rationale for decisiorfiemarks :
ITYDROLOGY
Is it the growing season?
other ex
Wetland hydrology preseut?
Rationale for decision/Remarks :
yes Aror 00{n
no@
PhysiologicaVreproductive adaptations
Wetland plant database
Personal knowledge of regional plant communities
Other
z)<
Sediment Deposits: yes no
Drainage Patterns: yes no
Local Soil Survey: yes no
Based on:fffiz-soiltemp(record t" p'f7o )
yes
Other (explain):
Water-stained lcaves yes no
t^JUfir
WETLANDS RATING FIELD DATA FORM
Government |urisdiction of wetland: t' +r-'^'+ CO':rqfl 4cOtfr OF€ltGlNGB
Location: 7/4 S: of 7/4 s: sEc: 4 TWNSHP: futl RNGE: lu/
SOURCESoFINFoRMATION:(Checkallsourcesthatapply)
site visit: { uo, Topo Map: yl r.wr *upr K Aerial Photo: soils survey:
Other: L Describe: Em Of fOf+ fO,,trtSrlt'O |nef/ttu-dkffil15-
V/_:_
Name of wetland (if known):
p\ Affiliation:% Date:51ts!11
BACKGROUND INFORMATION
Name of Rater:.L
or4WHENTHEFIELDDATAFORMISCOMPLETEENTERCETTCONYF{ERE
Yes:to
Circle answers
Yes: go to Q.3.
No: go to lc.
Yes: go to Q.3.
No: Pqssible
Category I
go to 1b.
Answer this question if you have adequate information or experience to do so' If not
find sommne with the dxpe*ise to aniwer the questions_.-T"., if the answu-tf:-
questions 1a, 1b and 1c are all NO, contact the ilarural Heritage ProSram of DNR'
la.Istheresignificantevidenceofhuman<ausedchangestotoPograPhyo:.
hydrology of the *",i"iai Significant changes P+ include clearinp grading'
iilr.;;l|#ng of the wetlandor its immedlate buffer, or c'lverts' ditches'
dredging, diking "r;;;;; "i
n" .nr.tt""d. Briefly describe the changes and your
infoirnation source/s:
1c. Is there significant evidence of human'caused disturbance of the water quality
of the system? o"g.d"ti"ioi*.t", quality could be glidenced by culverE
entering the system, afJ i*a/p"*iitg loi mnoff, evidence of hiitoric dumping of
wastes, oily sheens, *it"* "
utrophic
ionditions,livestock use or dead fish etc'
Briefly describe:
1
24-
Yes: CategorY I
No: go to 3c2. .
Yes: CategorY I
Yes: go to.3c3.
Yes: go to 3c4.
Yes: Category I
No: Category II
Yes: Category II
No: Category III
3c1. Is the wetland listed as National wildlife Refuge, National Park, National
EstuaryReserve,NaruralAreaPreserve'statePark'orEducational'
Environmental or scientific Reserves designated under wAc 332-3&75"1? ' ' ' "
Q3c.
3c2. Is the wetland > 5 acres;
or is the wetland 1-5 acres; ' ' ' ' '
or is the wetland < 1 acre?
3c3. Does the wetland meet at least 3 of the following 4 criteria:
minimum existing evidence of human related disturbance such as diking'
ditching, fiffing, &iti""tio1, F?1i"S,or the Presence of non-native plant
species-(see gt idattce for definition);
surface water connection with tidal saltwater or tidal freshwater;
at least 757o ofthe wetland has a 100' buffer of ungrazed Pasture, oPen water'
shrub or fores$
hasatleast3ofthefollowingfeatures:Iowmarsh;highmarsh;.tidal.
channels; tagoonirj; *oody iebris; or contiguous frehwaEr wetland.
3c4. Does the wetland meet all of the four criteria under 3c3' (above)?' ' ' '
Yes: Category I
No: go to 3d2.
Yes: CategorY I
No: Category II
3d1. Are eel gra*s beds Present?" '
September?
bed(s) Present with greater than507oornon-floatingkelP3d2. Are there floating
the month of Augustorrnacroalgalcoverin
o: go toQ5.
o: go to 4.2
ruY
rv
4.1. Is the wetland: Iess than 1 acreenll
l$'iitrliH:r*#iff isi,:r,lffi #F,rl1:
t
aaSL hydrologicallY isolated,
itt gE vegetated class, and >
combination of sPecies from the
Q.4.
wetland: less than two ac-res4.2. Is the
90To of areal cPver is an]'
list in guidance P.19
26-
that li
CirclescoresAnswerallquestionsenterdatarequested
Yes=6
Yes=5
Yes=4
Yes=3
aS=1
acres
20.00
10 - 19.99
5 -999
7 -499
0.1 - 0.99
0.1
Estimate area, select from choices in the near-right column, and score
in the far column:
Enteracreageofwetlandhere:-,lacres,andsource'ffin
5a. Total wetland area
Yes =10
Yes =!
of dasses
1
2
3
4
5
Open Water: if the area of open water is> 7/2 acre or > 70Vo of the total wetiand
Aguatic Beds: if the area of aquatic beds > 70Vo of the oPen water area 9I > 1/2 acre
the area of emergent class is > 7/2 acre q > 70Vo of the total wetland
the area of scn:b'shrub class is > 1/2 acre q > 70Vo of the total wetland
of forested class is > 7 /2 acre g > 10vo of the total wetland area
Aild the number of wetland classes, above, that qualify, and
then score according to the columns at right.
e.g. If there are 4 classes (aquatic beds' open 1vate.r,-emergent &
d.rUrt^U), you would circle 7 points in the far right column.
area. Source:
the wetland classes below that qua tif:5b
Yes=3
Yes=3
Yes=3
Yes=1
Yes=2
Yes=3
of
Class species
Aouatic Bed
nn
It ll
gcnrb-'Shrub 1-2...
34*
6 >4...
7-2...
3...
3...
Emeremt
Forested
F
n
7-2...
H...
4...
u...
4...
5c. PlaBt sPecies diversitY.
For all wetland classes (at right) that qualify in 5b- above, count
the number of different plant specie you can find' You do not
have to name them.
Score.in column at far right
e.g. If a wetland has an aquatic bed clas-s with 3 ?ecies.,-a1
eriergent class with + species and a scnrbshrub class with 2
specie you would circle 2, 2, and 1 in the far column'
fio*tt" o= 6J (
r-
4),fi,t ?' li:rii
27