HomeMy WebLinkAboutSpecial Report (050)
Olympic Wetland Resourcest Inc.
Dixie L1ewellin, Principal Biologist
15,2004 at the subject parcel owned by Brian and Maureen Whippy. The of the investigation was
to identify wetlands and wetland buffers that may be impacted by a proposed single-family residence
on the 5-acre parcel at the end of Thunder Road. The property currently has an approved well and
septic system and a cleared area for a home site.
Work was conducted in accordance with the Washington Wetland Delineation Manual 1997 and in
compliance with the Jefferson County Unified Development Code. Soils, vegetation, and hydrology
were evaluated to verify the presence of wetlands and determine wetland classifications.
According to the Department of Ecology rating system this wetland is a high quality Class III wetland.
It is small in size, less than Y4 acre, but is very high in plant species diversity, structural layers, and has
a high quality undisturbed buffer. Class III wetland receive 50 foot buffers if delineated and 75 feet
buffers if not delineated (UDC Section 3 Tables 3-3 and 3-4).
John Heal of Bionomics identified this small seasonal wetland adjacent to the access driveway in
December 1990. During this assessment hydric soils (l OYR 2/1 overlying a clay layer of 10YR 5/1
with extensive streaking and mottling), hydrophytic vegetation (sedges, water parsley), and moist soils
were identified. This wetland averages about 118 feet X 30 feet (3,540 square feet) and is confined to
the low-lying areas. All wetlands over 2,500 square feet are regulated by Jefferson County (UDC 3.6.9
a.1). The cleared area for the home site is slightly upslope and 120 feet from the wetlan~ edge.
The enclosed map indicates the general vicinity of the wetland location; this map does not represent a
formal wetland delineation. If there are further questions or if you need additional environmental
analysis for this project please do not hesitate to call.
i
: Dixie Llewellin
Certified for Wetland Delineation, 1987 Manual
Wetland Training Institute, June 1995
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Level I Findings Map
Parcel #002 1 25 001
Stale:
Sheet
Olyrnpi< Wetland Resources, In
856 50th Street
Port Townsend, WA 98368
360 385-6432
ctleot:
Brian and Maureen Whippy
P.O. Box 1161
Port Townsend, WA 98368
April 2004
Job #:2004 8882
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IBase map by Townsend Builders Inc.
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PLOT PLAN
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I Wetlands Rating Field Data Form
Background information:
Name of Rater. D tJ.&.B-UH
oUimP(.(
AtIiliatioo..W~ ~ale: Il.{tf( M--
NimeofWdlaDd (IfknowD):
G<rimImcDlJurlsdictionofwctland: ~~<.N ~ 1~5 ifavq~
LocatioD: 1/4 SectIon: _ of 114 S: _ ScclioD: tl...- Towmbip: ~ Range: 2-<<./
Sources of information: (Check 811 ~rces that apply)
Silevisit,6.... USGS TopiMap: X NWlmap: _AcrlaIPboto:h-Sollssurvey:~
Othef: _ Desaibe:
WbellTheReld Data form is ~ClcelltccCategoiy~ U
Q.1. High Quality Natural WeUand
Circle Answers
A.nswcIc this question If you have Idequale lDformatioa oc expeOcnce 10 do so.
ff DOt fiDd IOmoooe wilh Ibe apeitisc 10 answer Ibe quc:stiolIs. 'IbeD, If the
answer so questloas I&, Ib and Ic are III NO. COIII,oct!be Natual Heritage
progwnofDNR.
lL Humu. c:msed distarbuces.
Is tbece s1goi1iaateridcDceof~ cbaDgeS to topogDpby oc
bydroIogy of Ibe weiland as ~ by ID)' of !be foIJowiDg coOOiliOllS?
CODSidec OIII.y cIwIges IIIlIt may have takea place In 1be last S decades. The
impaclS of cbaDges dooe emicr bave-probably been stabilized I.lId !be weI1l.l1d
ecosysu:m 'IOiIl be dose so readdng some JJI:W equilibdum tha1 may rcpresent
a bigb quality Wdla.IId .
lal. UpsIIeam watenbed > 12% impervious.
102. Wedalld is ditdlcd I.lId -..- flow is DOt DbslIucled.
I a3. WedaDi bas been palicd. filled, logged
1a4. W*x 1D WdIaDd is eoIIIrOlled by dU:I:s, weiri. elC.
I as. Wedalld is gnzcd.
II &6. Olhea- iDdicaIoo; of disturbance (list below)
I
Yes: go SO Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
~
: go to lb.
2a.3. Is the vegetation a mixture of only berbaceous plants and Sphagnum
mosses with 00 scrub/shrub or forested classes?
Is the area ofberbaccousplants, Sphagnum. and deep.organic
soils> In acre? YES: Calegocy I
Is the area ofhabaccous plllllts, Spbagnum. and deep organic
soils It.-In aac? YES: CategOlY 11
NO: Go 10 0.3.
Q.2b. Mature foresWI wedud.
2b.1. Does 50"10 of the COYer of upper forest canopy consist of eYetgreeI\ YES: Category I
trees older than 80 years or deciduous trees older than 50 years? NO: Go to 2b.2
Nfie: lhc size of tx= is often DOt a measure of age, and size canoot
be used as a swrogate forage (see guidance).
2b.2. Does 50"10 of the cover of forest canopy consist of evergreen tx= older YES: Go to 2b.3
than 50 years, AND is the sInIctuntI diversity of the forest high as NO: Go 10 Q.3
cIw2cterized by an additionallayet"oftx= 20'-49' 1aII, shrubs 6'- 20',
tall, and a betbaceous grouodcovet7
2b.3. Does < 25% of the areal cover in the berbaceousIgrouodcovet" or YES: CategOl)' I
the shrub laver consist of invasive/exotic o\ant soecies from the list on". 197 NO: Go to 0.3
Q.2c. EstuariDe wetWtds.
2c.1. Is the wetland listed as National Wildlife Refuge, National Park, YES: Category 1
National Estuary Reserve, Natural Area Preserve, Stale Park, or NO: Go to 2c.2
Educationa~ EnvilOtlIl1Cl1lal or Scientific Reserves designated UDder
WAC 332-30-151?
2c.2.1s the wetland> 5 acres; ......................_............................... YES: CategOl)' I
Nou: If an area contains patches of salt tolerant vegelS.tion that are
I) less than 600 feet apart and that. are separated by mudflats that go
dry on a Mean low Tide, or
2) separated by tidal channels that are less than 100 feet wide;
all the vegetated areas are to be considered together in calculating the
wetland area.
or is the wetland 1-5 acres; ............................................. ..,......... YES: Go to ic.3
or is the wetland < 1 acre? ..........~................................--............. YES: Go to 2cA
J bAre tbete populations of oon-native plants wbich are ctII1CDtly present, covet"
more than IO"~ of the wetland, and appear to be invading native populations?
Briefly descnl>e any oon-native plant populations and
lnfonnation sourcc(s):
Ie. Is there evidence ofhuman-ausod disturbances which have visibly
degraded water quality. Evidence of the degradation of _ quality include:
direct (untreated) nanoff from roads or parldng lots; ptCSCIICC. or historic
evidence, ofwaste dumps; oily sheens; the smell of organic cbemicals; or
Iivestocl:: use. Brieny describe:
Q.2.lrrepIaceable Ec:oIoglcal Functions:
Does the wetland:
have at 1easl1l4 ICtC of organic soils deepC1" than 16 inches
and the wetland is relatively undisturbed; OR
[If the answec is NO because the wetland is distutbod briefly
describe:
Indicators of distwbance may include:
- Wetland has been graded, filled, logged;
- Otganic soils on the surface are drie<k>Ut for aio.e than balf
of the year;
- Wetland receives direct stormwater runoff from urban or
agricultural :IICIS.];
OR
have a forested class greatet" than I acre;
OR
have clwacleristics of an estuarine system;
OR
have eel or IIOtI-
2a. ~ ad Feu
Are any of the tluee following conditions met for the area of otganic soil?
2a.1. Are Spbagnum. mosses a common ground cover (>30%) and the cover of
invasive species (see Table 3) is less than IO%?
Is the area of sphagnum mosses and deep organic soils> 1/2 acre?
Is the lllCI of sphagnum mosses and deep organic soils Y.. In acre?
21.2. Is there an area of organic soil which has an emergent class with at least
one species from Table 2, and coYer of invasive species is < 10% (see Table 3)?
Is the area ofltabaceous plants and deep organic soils> 1/2 acre?
Is the area ofhabaceous plants and deep organic soils 114-1naae?
2c.3. Does the wetland meet at least 3 of the following 4 criteria: .......
_ minimwn existing evidence of human related disturbance such as
diking, ditching, filling. cultivation. grazing or the preseoce of non-
native plant species (see guidance focdefinitinn);
_ surface _ connection with tidal saltwater or tidal fieshwater,
_ at \east 75% of the wetland has a lOll buffet" of ungtazod pasture,
open water, shrub or forest;
_ has at least 3 of the following features: low marsh; high marsh; tidal
channels; Iagoon(s);woody debris; or contiguous fieshwater wetland.
2c.4. Does the wetland meet all of the four criteria under 2c3? (above)?
Q.2d. Eel Grass aad Kelp Beds.
2d.\. Are eelgrass beds present? ..................................................
2d.2. Are their floating or non-floating kelp bed(s) present with greater than
50"10 macro algal cover in the month of August or Seplembet?..............
Q.3. Category IV wetlands.
3a. Is the wetland: less than I acre I!!Q,
hydrologically isoIated!!!!L
comprised of one vegetated class !bat is dominated (> 80% areal cover)
by one species from Table 3 (page 19) or Table 4 (page 20)
3b. Is the wetland: less than two acres
and, hydrologically isolated, .
with one vegetaled class, and > 90% of areal cover in any combination of
species from Table 3 (page 19)
3c.1s the wetland excavated from upland l!!!!!a pond smallertban laac
without a"surface walerconnectionto.streams; lakes. ri~, 'Fothe{
wetland, ',1las \< o. Fitre ilf ~e etalton. . ' ? .",
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YES: Go to 2b
Yes: Go to 2c
Yes: Goto2d
YES: CategOl)' 1
YES: Category 11
NO: Go to 2a.3
YES: Category I
YES: Category 11
NO: Go to 2a3
YES: CategOl)' I
NO Category 11
YES: Category 11
NO: Cat 0 1lI
YES: Category I
NO: go to 2d.2
YES: Category I
NO: Category 11
0.4. SIgnificant habitat value.
Answer all questions and enler data requested.
4a. Total wetland area
Estimate area, select from cboices in the near-right column, and ICO<C in the
far column:
Enter aauge of wetland bere:_acres, and sov.n:e:~
/~l)"(J.
4b. Wellu.d dassec Circle !be wetland classes below that qualify:
Open Water: if the area of opetl water is > 1/4 acre
Aquatic Beds: if the area of aquatic bods > If4 acre, ~
~ .
Emergc:nI: if the area of emergent class is > If4 a=, 'VI
-
ScnJb.Sbrub: if the area of sau1Hbrub class is> I.GI aae,
F~ if area of foresIed class is > I f4 aae,
Add the DUmber of wetland classes. above, that qualify, IDd Ibert
Sco<e aceonIing to the cohums at right
e.g.lfthere are 4 classes (aquatic bcds, open water. emergent &:
Scnlb-sbrubl. you would circle 8 DOints in the far ri2ht colWllD.
4c. I'Iut species fivenIty.
For each wetland class (at right)tbat qualiftes in Qm
4b above, count the IIUtIlber of ~ffClCttt plant species Aquatic
you can find that COYer more than S% of the gJOUDd
You do DOt have to name tbem.
Sco<e in column at far right: ..
e.g. ff a wetlaDd bas an aquatic bed class wilh 3 species, an Emerpt
emergent class with 4 species me! a scrub-shrub
class with 2 species you would circle 2, 2, and I in tbe
far column.
NtIk: Any plant species with a cover of> 5%
qualifies for points within a class, even those Saub-Scrub
that are not oftbat class.
ForesIcd
CIrdc ocora _ qaIlfy
~
>200
40-200
10-40
5-103
1-5
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ooints
6
5
4
2
CD
#/of classes ~
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._.._3
3- ._ 6
4"':'- 8
5__10
, soecies in class Points
I 0
2 I
~;
!_~ 0
2-3 I
4-5 2
>5 3
1 .0
2 I
3-4 2
>4 3
I 0
2 I
3-4 2
.>4 3
4g. Coaaection to _... (S<or'C eat lIIS1I'er ealy.)
4g.l Does the wetland provide habitat for fish at any time of the year AND YES~6
does it have a perennial ourface walC1" COlJI'ec!ion to a fish-bearing stream.
4g-2 Does the wetland provide fish habitat seasonally AND does it have YES =4
a seasooa1 surface water conoection to a fisIHlearing stream.
4g.3 Does the wetland fimction to export organic matter tbrougb. aufilcc YES =4
waler COMCCIion at all times of the year to a pen:tmial sIIeIm.
4g.4 Does the wetland fimction 10 export organic matter through a aufilcc YES = 2
water oonnection to a stteain 00 a seasooal basis?
411. BaITers.
Sco<e the existing buffen 011 a scale of 1-5 based 00 the following four descriplions.
If the cooditioo of the buffers do DOt euctly match the desaiptioo, ICO<C either a
point higher oe lower cIepeDding OIl wItether the buffers are Jess or more degraded.
Forest, scrub, native gmsland oe open water buffers are p<eseGllOr ( .--
more than 1000arocmd 95% of the circumference. Sco<e = 5........
FO<eSt, scrub, native grassland, oe open water buffers wider than 100'
for more than 112 of the wetland circumference, oe a fon:st, scrub,
grasslands, or opetl water buff= for more than 50' around 95 % of the
citcumf=nce. Score = 3
FORSt, scrub, native grassland, or open water buffers wider than 100'
for more than 1/4 of!be wetlandcircumfereoce, oealOrest,scrub, native
grassland. or open water buff= wider than 50' for more than In of tbe
wetland circwnfemICC- Score = 2
No roads, buildings or paved IICIS within 100' of the wetlaDd lOr more than
95% of the wetland circumference. Sco<e = 2
No roads, buildings or paved areas within 25' of the wetlaDd lOr more
than 95% of the circumference, or
No roads buildinp or paved areas within 50' of the wetland lOr more than
112 of the wetland circumference. Sco<e = I
Paved areas, iJ>dusIrial areas or residential construction (with less tban 50'
between houses) are less tban 25 feet from tbe ~ foe more tban 95 % Score = 0
of the circumference of the wetland
4d. Stnactural diYtnlty.
If the wetland has a forested class, add I point if eacb of the following
Classes is present within the forested class me! is 13JlCI" than 114 acre:
-u=> 50' tal!............................
-u= 20'-49' tal!........................
4trubs.................................. .....
-betbaceous ground covet"................
Also add I point if there is any "opco wata" or "aquatic bed" class
Immediately next to the forested area (ie. tbece is DO scndlIshrub or
tion between them
4e. Decide &om the diagtams below whether iutenpenioo between
wetbnd classes is high. moderate. low or __? If you think the
amotIII1. of interspersion falls in between the diagrams accn acconiingly
(ie. a moderately high amount ofinlenpenion would ICO<C a 4,
wbiIe. moderately low amount would score a 2)
YES-I
High - S
3
None - 0
.
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4f Habitat features.
Answer questions below, circle featuRs that apply, aDd score SO right
Is there evidence that the open or staIIding _ was caused by beavers
Is a heron rookery located within 300'? .
Are raplor nestls located within 300'? .'
Are there at least 3 standing dead tx= (soags) per acre uea1er \ban
10" in diameter at "b~ height" (DBH)?
Are there at least 3 downed logs per acre with a diameter
> 6" for at least 10' in length?
Are there areas (vegetated or unvqetated) within the wetland tha1 are
pooded for at least 4 months out of the year, and the wetland has DOt
qualiffCd as having an open water class in Question 4b. ?
YES=2
YEScl
YES = I
YES = I
YES = I
YES =2
4L Conection to other ..bltat areas:
Select the description, which best matcbes the site being evaluated.
-Is the wetland connected to, or part of. a riparian corridor at least 100' wide
CODDeCting two or m<><e wetlands; or, is there an upland connection present > 100'
wide with good forest or shrub cover (>25% cover) coanecting it with a .-. ~
Significant Habitat Axea? fO(le:lr COlbt. TO l.:A1tcIf; We-I t.J.... -
to~
-Is tbe wetland COIUlCCtod to any oCher Habnat Iuea wi1h either I) a forestedfshrub
corridor< rOO' wide, or 2) a corridortbat is > 100' wide, but has a low vegetative .
cover less than 6 feet in height?
-Is the wetland connected 10, or a part of; a ripariao rorridor between 50 - 100' wide
with scrubIshrub 01" forest covet" COlItIeclion to other wetlands?
Yes=3
Yes =3
- Is the wetland connected to any oCher Habitat Axea wi1h nanow corridor (<I 00')
of low vegetation (< 6' in height)?
Yes = 1
- Is the wetland and its buffer (if the buffer is less tban SO' wide) completely isolated
by development (urban, resicletrtial with a density greater than 21acre, or ~)?
Yes=O
How add the scores circled (for Q.5a - 0.51 above) to get a total I 1-
~ID
o-ea II
I, tile Total greater titan or equal" 22 poluts?
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