HomeMy WebLinkAboutDelineation Report - PLN General - 2/28/2008 THE WETLAND CORPS 4IM/�
Wetland Delineation - Habitat Management Plans - Riparian Restoration • Mitigation • Biological Evaluation
MOORE WETLAND DELINEATION REPORT
Parcel 12329130004
71 Old Belfair Highway
Belfair, WA
Mason County
Prepared for:
Richard Moore
230 E Hillside Drive
Belfair,WA 98528
Prepared by:
Lee Boad and Heather Lane
February,2008
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
AV
THE WETLAND CORPS 4577—
Wetland Delineation • Habitat Management Plans - Riparian Restoration • Mitigation • Biological Evaluation
MOORE WETLAND DELINEATION REPORT
TABLE OF CONTENTS
INTRODUCTION......................................................................................................................... 1
GENERAL SITE CONDITIONS................................................................................................ 1
METHODOLOGY....................................................................................................................... 2
Review of Existing Information.........................................................................................2
FieldDelineation...........................................................................:.....................................2
BACKGROUND INFORMATION ............................................................................................ 3
WETLAND DELINEATION RESULTS...................................................................................3
General Wetland Conditions ............................................................................................. 3
Vegetation............................................................................................................................ 5
Soils....................................................................................................................................... 5
Hydrology............................................................................................................................5
WETLANDEVALUATION............................................................................................................................5
WETLANDCONCLUSION........................................................................................................6
REFERENCES.............................................................................................................................. 7
Fiwres
Figure 1. Site Vicinity Map
Figure 2. Wetland Boundary Map
Figure 3. National Wetland Inventory Map
Figure 4. Mason County Soil Survey Map
Figure 5. Department of Natural Resources Water Resource Map
Appendices
Appendix A. Routine Wetland Determination Data Forms
Appendix B. Soil Survey Text
Appendix C. Washington State Wetland Rating System Form
PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421-boad40@peoplepc.com
AV
THE WETLAND CORPSr
Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation
February, 2008 Project# TWC08W22
Page 1 of 14
MOORE WETLAND DELINEATION REPORT
71 NE Old Belfair Highway
Belfair,WA
INTRODUCTION
The Wetland Corps has been authorized by Richard Moore to perform a wetland
delineation at the above referenced property located in Belfair, Mason County,
Washington, (Tax Identification Number 123291300090). The delineation was
performed to verify the location of existing wetland boundary flags and calculate the
associated wetland buffer required by the latest version of the Mason County Resource
Ordinance. The field visit was completed on February 191h 2008.
The subject property is located in the NE '/4 of Section 29, Township 23 North, Range 01
West WM (Figure 1 Vicinity Map). The parcel is 0.96 acre in size.
For the purposes of federal, Washington State, and Mason County jurisdictional
oversight, methodology used for the wetland delineation is consistent with the wetland
definition provided in paragraph 25a of the Washington State Wetlands Identification and
Delineation Manual (Washington State Department of Ecology, 1997). The sections
below provide: (1) an introduction to the site; (2) a description of methods used in the
field delineation; and, (3)technical results.
GENERAL SITE CONDITIONS
The parcel is roughly rectangular in shape, oriented east to west. Old Belfair Highway
makes up the eastern property boundary, while residential parcels of similar size surround
parcel to the north and south. A large undeveloped parcel containing a riverine wetland
system associated with several channels borders the parcel to the west. A sloped wetland
area occupies the western third of the property, and drains northwesterly, into the riverine
wetland system west of the parcel. The wetland is characterized by a herbaceous
community of reed canarygrass, creeping buttercup, and slough sedge. Adjacent upland
vegetation within the parcel consists of Japanese knotweed, himilayan blackberry, and
swordfern. Topography throughout the parcel is generally flat, with the exception of a
moderate gradient slope northwesterly, down toward the wetland.
PO Box 2854 Belfair, Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 2 of 14
METHODOLOGY
Review of Existing Information
Consistent with procedures detailed in the Washington State Wetlands Identification and
Delineation Manual (Washington State Department of Ecology, 1997) (1997 Manual),
preliminary information was gathered on the project site prior to the field review and
delineation. General information sources included: United States Geological Service
(USGS) topographic maps, 1974 United States Fish and Wildlife Service (USFWS)
National Wetland Inventory (NWI) maps, the Soil Survey of Mason County Area,
Washington (USDA, 1951),and Mason County's critical areas regulations.
Field Delineation
Methodology used for wetland delineation was consistent with the technical approaches
articulated in the 1997 Manual. This document is the wetland delineation manual that is
used in determining wetland areas when applying state and local government regulations
under the Shoreline Management Act and the Growth Management Act in Washington
State.
The extent and location of suspect wetlands were determined during field work
performed on February 19'', 2008. Field work was conducted under cloudy skies with an
ambient temperature ranging between 40 and 50 degrees Fahrenheit. The time of year
and recent precipitation history were considered in assessing the extent of the suspect
wetland presumed to exist on site.
Specific field methodology used in determining the extent and location of wetland areas
include:
1. As part of the initial project site reconnaissance, the site was walked to determine
the general extent and location of potential wetland areas;
2. Wetland and upland sample plots were established in the identified potential
wetland areas and in the adjacent upland area; and
3. Wetland boundaries were delineated with flagging by noting localized topography
and vegetation patterns and comparing parameters of hydrology, soil, and
vegetation with data collected at the wetland and upland sample plots.
The project area was investigated and data was collected at two sample plot locations.
Data collected at each sample plot were entered onto a Routine Wetland Determination
Data Form (Washington State Department of Ecology 1997). Copies of data forms for
each sample plot are provided in Appendix A.
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421-boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 3 of 14
BACKGROUND INFORMATION
Mason County Soil Survey
The soil survey of Mason County indicates two onsite soil types, (USDA, 1951):
Soil type one has been identified as: Saxon silt loam, 5 to 15 percent slopes (Sa):The
Saxon series consists of friable, well-drained, brown, silty soils on the uplands. They
have developed from Vashon glacial lake sediment similar to that of the Kitsap soils.
Surface drainage is well developed, internal drainage is medium, and the moisture-
holding capacity is good. The rainfall is 45 to 60 inches a year. The vegetation is a dense
forest of fir, cedar, and alder, with a dense undercover of salal, vine maple, bracken fern,
and sword fern. Saxon soils differ from the Kitsap soils in having browner surface soil
and less dense subsoil, and in containing shot.
The second soil type is mapped within the western portion of the parcel, and is identified
as Norma silt loam, 0 to 3 percent slopes (Ne).-The Norma series consists of poorly
drained, very dark, highly organic soils in upland depressions. They have developed from
coarse sandy drift under the influence of excessive moisture. The rainfall is 45 to 60
inches a year. The vegetation is alder, vine maple, willow, spirea, wild rose,
skunkcabbage, and, in scattered marshy areas, reeds and sedges. These soils occur in
association with the Alderwood. Everett,and Indianola soils. Norma soils do not have the
finetextured subsoil typical of the Bellingham series, nor the very gravelly subsoil of the
McKenna series, nor the iron oxide cementation of the Edmonds series.
National Wetlands Inventory
The USFWS NWI map (online wetlands mapper) does not map the identified wetland
near the approximate parcel location. The nearest mapped wetland is located 1000 feet
southeast of the subject parcel (Figure 3. National Wetland Inventory Map).
Department of Natural Resources Water Resource
The Department of Natural Resources Water Resource Map shows no streams in vicinity
of the subject parcel. The nearest stream is identified as the Union River, and is mapped
approximately 1000 feet west of the parcel (Figure 5. DNR Stream Map).
WETLAND DELINEATION RESULTS
A portion of one wetland was identified within the northwestern section of the parcel.
The wetland receives water from a culvert that drains surface runoff from Old Belfair
Highway, and is also hydrologically supported by a fluctuating water table. The culvert
is located at the easternmost point of the wetland. The wetland slopes downward
northwesterly to eventually tie into a large riverine wetland system, west of the parcel.
The subject wetland within the parcel meets Department of Ecology criteria for a Slope
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 4 of 14
Wetland, because water generally moves one direction (northwesterly), is on a slope, and
water leaves the wetland into the riverine system without being impounded. Detailed
information about the wetland vegetation, hydrology and soil characteristics are
addressed below.
�R
Photo 1. Portion of wetland within the property,facing north.
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 5 of 14
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Photo 2. Easternmost point of wetland within property,occupied primarily by reed canarygrass
(Phalaris arundinacea,FACW)
Vegetation
The vegetation community is comprised of a scattered overstory of red alder (Alnus
rubra, FAQ, with a shrub community of salmonberry (Rubus spectabilis, FAC+) and
lesser amounts of spirea (Spiraea douglasii, FACW). The herbaceous layer consists of
reed canarygrass (Phalaris arundinacea), creeping buttercup (Ranunculus repens,
FACW), piggyback plant (Tolmiea menziesii, FAQ, and slough sedge (Carex obnupta,
OBL).
The upland vegetation within the parcel includes an overstory of red alder (Alnus rubra,
FAC). Understory species consist of Japanese knotweed (Polygonum cuspidatum,
FACU), himilayan blackberry (Rubus discolor, FACU), swordfern (Polystichum
munitum, FACU), salal (Gaultheria shallon, FACU), and creeping buttercup (Ranunculus
repens, FACW).
Soils
Both test pits excavated in the wetland area revealed a two-layer profile. The upper layer
consists of silt with matrix chroma 10YR 3/1 to a depth of six to eight inches. The lower
is similar to the upper layer with the exception of commonly present, faint, medium sized
mottles with matrix chroma 10YR 4/4. This soil profile is consistent with the mapped
soil type, Norma silt loam (Ne). Norma silt loam (Ne) is listed as a hydric soil on the
2007 National Hydric Soils List. Wetland hydric soils are indicated by a low-chroma
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 6 of 14
(equaling one) in the wetland test pits, with mottles, and soil profile consistent with a
listed hydric soil type.
The soil profiles observed in known upland test pits were consistent with the mapped soil
type, Sa-Saxon silt loam. Upland test pits also exhibited a two-layer soil profile of silt
loam to eighteen inches deep. The upper layer consists of silt loam approximately eight
inches deep of matrix chroma 1 OYR 3/3. The lower profile contained less gravel with a
matrix chroma of 10 YR 6/3. No hydric soil indicators were present in upland soil test
pits.
Hydrology
Hydrology was indicated by FAC-neutral vegetation, drainage patterns, mapped hydric
soils, and water-stained leaves. In addition, the test pits revealed soil saturation and free
water in the test pits during the non-growing season. On the day of the field visit, the
wetland was inundated up to six inches. Upland test pits showed no indicators of wetland
hydrology.
WETLAND EVALUATION
The wetland meets criteria for a Slope wetland per Washington .State Wetland Rating
System for Western Washington (Hruby 2004) for the purposes of rating. Based on
functional attributes associated with the wetland including habitat, water quality, and
hydrology functions, it has been rated as a Category III wetland, scoring 33 points on the
state rating form. The score for water quality functions in this wetland is 8, hydrological
functions scored 6, and the score for habitat functions is 19 (see Appendix C for rating
form). According to Table 17.01.070 D of the Mason County Resource Ordinance, the
base buffer width for a Category III Wetlands scoring less than 20 points in habitat
function, within parcels intended for High Impact Land Use require a base buffer width
of 80 feet with an additional 15-foot building setback. Moderate Impact Land Use is
described in Table 17.07.070 B of the Mason County Resource Ordinance as
Commercial, Urban, Industrial, Institutional, Retail Sales, Residential subdivisions with
more than 1 unit/acre,
WETLAND CONCLUSION
This wetland report documents the presence of a portion of a portion of a Category III
Wetland at the subject property. According to Table 17.01.07D of the Mason County
Resource Ordinance, the wetland requires a 80-foot buffer with an additional 15-foot
building setback for High Impact Land Use (single-family residential lots with less than
one unit per acre).
Thank you for choosing The Wetland Corps as your environmental consultant. If you
have any questions, feel free to call.
Respectfully submitted,
PO Box 2854 Belfair, Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 7 of 14
SL
Heather Lane
Staff Wetland Specialist
Lee Boad
Senior Ecologist
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Moore Wetland Delineation
TWC08-W22
February,2008
Page 8 of 14
REFERENCES
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. Fish and
Wildlife Service document FWS/OBS-79/31. 84 pp. Washington, D.C.
Hitchcock, L.C. and A. Cronquist, 1973. Flora of the Pacific Northwest.
University of Washington Press.. 730 pp.
Hruby, T., 2004. Washington State Wetland Rating System for Western Washington—
Revised. Washington State Department of Ecology Publication#04-06-025.
Munsell Soil Color Charts, 1998. GretagMacbeth. New Windsor,New York.
Pojar, J. and A. MacKinnon, 1994. Plants of the Pacific Northwest Coast. Lone
PinePublishing. 528 pp. Vancouver, British Columbia.
Speare-Cooke, S., 1997. A Field Guide to the Common Wetland Plants of
Western Washington and Northwestern Oregon. Seattle Audubon Society.
417 pp.
US Department of Agriculture, Soil Conservation Service. Soil Survey of Pierce
County Area, Washington. September, 1977.
US Fish and Wildlife Service. National Wetlands Inventory. 1978.
Washington State Department of Ecology, 1997. Washington State Wetland
Identification and Delineation Manual. Ecology Publication#96-94,
various pagination. Olympia, Washington.
Washington State Department of Ecology, 1993. Washington State Wetlands
Rating System, Western Washington Second Edition. 61 pp.Ecology
Publication#93-74. Olympia, Washington.
Washington State Department of Ecology, 1999. Methods for Assessing
Wetland Functions for Reverine and Depressional Wetlands in the
Lowlands of Western Washington. Ecology Publication#99-115. Olympia,
Washington.
United States Fish and Wildlife Service, 1993.National List of Plant Species that
Occur in Wetlands Region 9—Northwest. Resource Management Group
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
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FIGURE 1 VICINITY MAP
Project Name: Moore Wetland Delineation
Location: Belfair,Washington
Project: TWC08-W22
Client: Richard Moore
THE WETLAND CORPS Date: 2/08
0 100 feet
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Category III Wetland N
80' buffer+ 15'
building setback
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8 15'0
/ FIGURE 2. SITE MAP
Project Name: Moore Wetland Delineation
THE WETLAND CORPS Location: Belfair, Washington
Project: TWC0808-W22
Client: Richard Moore
Date: 2/08
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Map center:47'27 15"N, 122`50"9"W
Figure adapted from NWI Figure 3 National Wetland Inventory Map
Mapper website Section 29 Township 23N Range 01 W
FIGURE 3 NWI MAP
Project Name: Moore Wetland Delineation
Location: Belfair, Washington
Project: TWC08-W22
Client: Richard Moore
THE WETLAND CORPS Date: 2/08
Note: No wetlands mapped in parcel vicinity.
Approximate t �
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Soil Onsite Conditions based on Mason County Soil Survey
Subject Site Soils:
Saxon silt loam, 5 to 15 percent slopes (Sa) - The Saxon series consists of friable, well-drained, brown,
silty soils on the uplands. They have developed from Vashon glacial lake sediment similar to that of the
Kitsap soils. Surface drainage is well developed, internal drainage is medium, and the moisture-holding
capacityis good. The rainfall is 45 to 60 inches a year. The vegetation is a dense forest of fir, cedar, and
alder, with a dense undercover of salal, vine maple, bracken fern, and sword fern. Saxon soils differ from
the Kitsap soils in having browner surface soil and less dense subsoil, and in containing shot. This soil
occurs on rolling or gently rolling benches near Belfair.
Norma silt loam, 0 to 3 percent slopes (Ne) and Norma sandy loam, 0 to 3 percent slopes (Nd).-:
The Norma series consists of poorly drained, very dark, highly organic soils in upland depressions. They
have developed from coarse sandy drift under the influence of excessive moisture. The rainfall is 45 to 60
inches a year. The vegetation is alder, vine maple, willow, spirea, wild rose, skunkcabbage, and, in
scattered marshy areas, reeds and sedges.
FIGURE 4 SOIL SURVEY
Project Name: Moore Wetland Delineation
Location: Belfair,Washington
Project: TWCOS-W22
j Client: Richard Moore
THE �TDate: 2/08
� FTL N D CORP Note: x dric soil present in parcel
vicinity.
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STRE.kAIS SOILS
r - Stream Water Type 1-5(Ea::ode, Hvdnc Soils
Stream Tape I;nknoum(Ea-t she; H12hlc Unstable
/ Stream Water Type: 5(We-.+A*; Hie l v Erodible
f Stream Ty7e Lsknoum(We-.-side; i:;Iily Uwtab:e&
eUy Erodible
Water Type CInnge � No Data or Gravel Piss
FIGURE 5 DNR STREAM MAP
Project Name: Moore Wetland Delineation
A*w Location: Belfair,Washington
wm Project: TWCO8-W22
Client: Richard Moore
THE NVETL_-'i ND CORPS Date: 2/08
Note: No streams within parcel vicinity.
APPENDIX A
Routine Wetland Determination Data Forms
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual
Project/Site: Moore Wetland Delineation Date: 2/19/07
Applicant/owner: Richard Moore County: Mason
Investigator(s): H. Lane State: WA
SIT/R-. 29 T23N R01 W
Do normal circumstances exist on the site? Yes Community ID: shrub
Is the site significantly disturbed (atypical situation)? No Transect ID: 1
Is the area a potential problem area? No Plot ID: Upland
Explanation of atypical or problem area:
VEGETATION (For*strata, indicate T=tree; S = shrub; H = herb; V= vine)
Dominant Plant Species *Stratum %cover Indicator Dominant Plant Species *Stratum % cover Indicator
Alnus rubra T FAC
Polygonum cuspidatum S FACU
Polystichum munitum S FACU
Rubus discolor S FACU
Ranunculus repens H FACW
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL, FACW, & FAC: < 50%
Check all indicators that apply and explain below:
❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations
areas of prolonged inundation/saturation X Wetland plant database
❑ Morphological adaptations X Personal knowledge of regional plant communities
X Technical Literature ❑ Other(explain)
Hydrophytic vegetation present? No
Rationale for decision/Remarks: < 50% of dominants OBL, FACW, & FAC
HYDROLOGY
Is it the growing season? No Water Marks: No Sediment Deposits: No
Based on: February Drift Lines: No Drainage Patterns: No
Depth of inundation: No inundation Oxidized Root(live roots) Local Soil Survey: No
Channels <12n.:
Depth to free water in pit: > 16 FAC Neutral: No Water-stained Leaves: No
Depth to saturated soil: > 16
Check all that apply&explain below: Other(explain):
❑ Stream, lake or gage data
X Aerial photographs
❑ Other
Wetland hydrology present? No
Rationale for decision/remarks: No indicators present
SOILS
Map Unit Name: Sa- Saxon silt loam 5 to 15 percent Drainage Class: well-drained
slopes Field observations confirm mapped type?Yes
Profile Descri tion
Depth Matrix color Mottle colors Mottle abundance Texture,concretions, Drawing of soil profile
inches Munsell moist Munsell moist size and contrast structure,etc. (match description)
0-8 10YR 3/3 Silt loam
8-16 10YR 6/3 Silt loam
Hydric Soil Indicators: (check all that apply)
❑ Histosol ❑ Matrix chroma<_2 with mottles
❑ Histic Epipedon ❑ Mg or Fe Concretions
❑Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils
❑Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils
❑ Reducing Conditions ❑Listed on National/Local Hydric Soils List
❑ Gleyed or Low-Chroma(=1)matrix ❑ Other(explain in remarks
Hydric soils present?No
Rationale for decision/Remarks: No indicators present.
Wetland Determination
Hydrophytic vegetation present?No
Hydric soils present? No
Wetland hydrology present? No
Is the sampling point within a wetland?No
Rationale/Remarks: Positive wetland indicators not present for all three wetland parameters.
NOTES:
Revised 4/97
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual
Project/Site: Moore Wetland Delineation Date: 2/19/2008
Applicant/owner: Richard Moore County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 29 T23N R01W
Do normal circumstances exist on the site? Yes Community ID: herbaceous
Is the site significantly disturbed (atypical situation)? No Transect ID: 1
Is the area a potential problem area? No Plot ID: Wetland
Explanation of atypical or problem area:
VEGETATION (For*strata, indicate T=tree; S =shrub; H = herb; V= vine)
Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator
Phalaris arundinacea H FACW
Ranunculus repens H FACW
Tolmiea menziesii H FAC
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL, FACW, & FAC: > 50%
Check all indicators that apply and explain below:
❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations
areas of prolonged inundation/saturation X Wetland plant database
❑ Morphological adaptations X Personal knowledge of regional plant communities
X Technical Literature ❑ Other(explain)
Hydrophytic vegetation present? Yes
Rationale for decision/Remarks: > 50% of dominants OBL& FACW
HYDROLOGY
Is it the growing season? No Water Marks: No Sediment Deposits: No
Based on: February Drift Lines: No Drainage Patterns: Yes
Depth of inundation: Up to 6 inches Oxidized Root(live roots) Local Soil Survey: Yes
Channels <12ii.: No
Depth to free water in pit: 3 inches FAC Neutral: Yes Water-stained Leaves: Yes
Depth to saturated soil: 0 inches
Check all that apply &explain below: Other(explain):
❑ Stream, lake or gage data
X Aerial photographs
❑ Other
Wetland hydrology present? yes
Rationale for decision/remarks: Primary and secondary indicators present.
SOILS
Map Unit Name: Ne- Norma silt loam Drainage Class: poorly drained
Field observations confirm mapped type? Yes
Profile Descri tion
Depth Matrix color Mottle colors Mottle abundance Texture,concretions, Drawing of soil profile
inches Munsell moist Munsell moist size and contrast structure,etc. (match description)
0-6 10YR 3/1 Silt loam
6-12 10YR 3/1 10YR 4/4 Common, medium, Sandy loam
faint
Hydric Soil Indicators: (check all that apply)
❑ Histosol X Matrix chroma<2 with mottles
❑ Histic Epipedon X Mg or Fe Concretions
❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils
❑Aquic Moisture Regime ❑Organic Streaking in Sandy Soils
❑ Reducing Conditions X Listed on National/Local Hydric Soils List
X Gleyed or Low-Chroma(=1)matrix ❑ Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 in the entire soil profile, Matrix chroma<2 with mottles, Mg or Fe Concretions, Listed
on National/Local Hydric Soils List
Wetland Determination
Hydrophytic vegetation present?Yes
Hydric soils present? Yes
Wetland hydrology present?Yes
Is the sampling point within a wetland?Yes
Rationale/Remarks: Positive wetland indicators present for all three wetland parameters.
NOTES:
Revised 4197
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual
Project/Site: Moore Wetland Delineation Date: 2/19/07
Applicant/owner: Richard Moore County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 29 T23N R01 W
Do normal circumstances exist on the site? Yes Community ID: shrub
Is the site significantly disturbed (atypical situation)? No Transect ID: 2
Is the area a potential problem area? No Plot ID: Upland
Explanation of atypical or problem area:
VEGETATION (For`strata, indicate T=tree; S =shrub; H = herb; V= vine)
Dominant Plant Species *Stratum %cover Indicator Dominant Plant Species *Stratum % cover Indicator
Alnus rubra T FAC
Polygonum cuspidatum S FACU
Rubus discolor S FACU
Polystichum munitum S FACU
Ranunculus repens H FACW
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL, FACW, & FAC: < 50%
Check all indicators that apply and explain below:
❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations
areas of prolonged inundation/saturation X Wetland plant database
❑ Morphological adaptations X Personal knowledge of regional plant communities
X Technical Literature ❑ Other(explain)
Hydrophytic vegetation present? No
Rationale for decision/Remarks: < 50% of dominants OBL, FACW, & FAC
HYDROLOGY
Is it the growing season? No Water Marks: No Sediment Deposits: No
Based on: February Drift Lines: No Drainage Patterns: No
Depth of inundation: No inundation Oxidized Root(live roots) Local Soil Survey: No
Channels <12n.:
Depth to free water in pit: > 16 FAC Neutral: No Water-stained Leaves: No
Depth to saturated soil: > 16
Check all that apply & explain below: Other(explain):
❑ Stream, lake or gage data
X Aerial photographs
❑ Other
Wetland hydrology present? No
Rationale for decision/remarks: No indicators present
SOILS
Map Unit Name: Sa- Saxon silt loam 5 to 15 percent Drainage Class: well-drained
slopes Field observations confirm mapped type? Yes
Profile Descri tion
Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile
inches Munsell moist Munsell moist size and contrast structure,etc. (match description)
0-8 10YR 3/3 Silt loam
8-16 10YR 6/3 Silt loam
Hydric Soil Indicators: (check all that apply)
❑ Histosol ❑ Matrix chroma<2 with mottles
❑ Histic Epipedon ❑ Mg or Fe Concretions
❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils
❑Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils
❑ Reducing Conditions ❑Listed on National/Local Hydric Soils List
❑ Gleyed or Low-Chroma(=1)matrix ❑ Other(explain in remarks
Hydric soils present?No
Rationale for decision/Remarks: No indicators present.
Wetland Determination
Hydrophytic vegetation present?No
Hydric soils present? No
Wetland hydrology present?No
Is the sampling point within a wetland?No
Rationale/Remarks: Positive wetland indicators not present for all three wetland parameters.
NOTES:
Revised 4/97
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual
Project/Site: Moore Wetland Delineation Date: 2/19/2008
Applicant/owner: Richard Moore County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 29 T23N R01 W
Do normal circumstances exist on the site? Yes Community ID: shrub/herbaceous
Is the site significantly disturbed (atypical situation)? No Transect ID: 2
Is the area a potential problem area? No Plot ID: Wetland
Explanation of atypical or problem area:
VEGETATION (For*strata, indicate T= tree; S= shrub; H = herb; V= vine)
Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator
Alnus rubra T FAC
Rubus spectabilis S FAC+
Spiraea douglasii S FACW
Ranunculus repens H FACW
Phalaris arundinacea H FACW
Carex obnupta H OBL
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL, FACW, & FAC: > 50%
Check all indicators that apply and explain below:
❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations
areas of prolonged inundation/saturation X Wetland plant database
❑ Morphological adaptations X Personal knowledge of regional plant communities
X Technical Literature
❑ Other(explain)
Hydrophytic vegetation present? Yes
Rationale for decision/Remarks: > 50% of dominants OBL& FACW
HYDROLOGY
Is it the growing season? No Water Marks: No Sediment Deposits: No
Based on: February Drift Lines: No Drainage Patterns: Yes
Depth of inundation: Up to 6 inches Oxidized Root(live roots) Local Soil Survey: Yes
Channels <12in.: No
Depth to free water in pit: 3 inches FAC Neutral: Yes Water-stained Leaves: Yes
Depth to saturated soil: 0 inches
Check all that apply&explain below: Other(explain):
❑ Stream, lake or gage data
X Aerial photographs
❑ Other
Wetland hydrology present? yes
Rationale for decision/remarks: Primary and secondary indicators present.
SOILS
Map Unit Name: Ne- Norma silt loam Drainage Class: poorly drained
Field observations confirm mapped type? Yes
Profile Descri tion
Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile
inches Munsell moist Munsell moist size and contrast structure,etc. (match description)
0-8 10YR 3/1 Silt loam
8-12 10YR 3/1 10YR 4/4 Common, medium, Sandy loam
faint
Hydric Soil Indicators: (check all that apply)
❑ Histosol X Matrix chroma s 2 with mottles
❑ Histic Epipedon X Mg or Fe Concretions
❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils
❑Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils
❑ Reducing Conditions X Listed on National/Local Hydric Soils List
X Gleyed or Low-Chroma(=1)matrix ❑Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 in the entire soil profile, Matrix chroma<_2 with mottles, Mg or Fe Concretions, Listed
on National/Local Hydric Soils List
Wetland Determination
Hydrophytic vegetation present?Yes
Hydric soils present? Yes
Wetland hydrology present?Yes
Is the sampling oint within a wetland?Yes
Rationale/Remarks: Positive wetland indicators present for all three wetland parameters.
NOTES:
Revised 4197
APPENDIX B
Soil Survey Text
SAXON SERIES
The Saxon series consists of friable, well-drained, brown, silty soils on the uplands. They
have developed from Vashon glacial lake sediment similar to that of the Kitsap soils.
Surface drainage is well developed, internal drainage is medium, and the moisture-
holding capacity is good. The rainfall is 45 to 60 inches a year. The vegetation is a dense
forest of fir, cedar, and alder, with a dense undercover of salal, vine maple, bracken fern,
and sword fern. Saxon soils differ from the Kitsap soils in having browner surface soil
and less dense subsoil, and in containing shot. Saxon silt loam, 5 to 15 percent slopes
(Sa).-This soil occurs on rolling or gently rolling benches near Belfair. The surface soil is
friable and moderately granular, brown silt loam, 8 to 10 inches thick. It is slightly acid
and contains many roots and very little shot. This is underlain by a pale-brown, friable
silt loam, which at depths between 15 and 20 inches grades to a friable to firm silt loam
subsoil having weak, subangular blocky structure. Yellowish-brown'-stains occur along
root channels. Below a depth of 30 inches, the subsoil grades to slightly compacted,
stratified, and platy fine sand and silt, which continue to depths of several , more feet.
The slight compaction in this material does not restrict movement of moisture or growth
of roots. The soil is deep, friable, and permeable; it has a good capacity to hold available
moisture. Use and suitability.-Much of this soil has been cleared and is used mainly for
hay, grain, and pasture. Vegetables are grown for local markets and for home use on
many small, intensively farmed garden plots. Yields of crops compare favorably with
those on the best upland soils, and they are only slightly less than those obtained on the
better flood-plain soils. Though the soil is moderately fertile, nitrogen and organic matter
must be maintained through additions of barnyard manure, or through use of green-
manure crops. Commercial nitrogen fertilizer benefits garden crops and, when it is used
with phosphate, additional benefits are obtained. This soil is in capability subclass We
and in site class 3 for Douglas-fir.
NORMA SERIES
The Norma series consists of poorly drained, very dark, highly organic soils in upland
depressions. They have developed from coarse sandy drift under the influence of
excessive moisture. The rainfall is 45 to 60 inches a year. The vegetation is alder, vine
maple, willow, spirea, wild rose, skunkcabbage, and, in scattered marshy areas, reeds and
sedges. These soils occur in association with the Alderwood. Everett, and Indianola soils.
Norma soils do not have the finetextured subsoil typical of the Bellingham series, nor the
very gravelly subsoil of the McKenna series, nor the iron oxide cementation of the
Edmonds series. Norma silt loam, 0 to 3 percent slopes (Ne).-This soil occurs as small
areas scattered throughout the eastern two-thirds of the county. At the surface is a thin,
organic mat of leaves, twigs, and moss. Under this litter is a highly organic, friable, dark-
gray (nearly black when moist) silt loam, 5 to 8 inches thick. This grades to a friable,
weakly granular, dark grayish-brown, or dark-gray and olive-gray fine sandy loam, which
ranges from 4 to 12 inches in thickness. This last-named material contains much less
organic matter than the surface soil and is faintly mottled with reddish brown and
yellowish brown. Below this layer is the subsoil, a massive, friable, slightly compact,
light brownish-gray loamy sand, moderately mottled with reddish brown and reddish
yellow. Mottling becomes less intense and the texture becomes coarser with depth. There
are a few reddishbrown lenses, cemented by iron, in the subsoil. The substratum,
consisting of compact, light-gray gravelly sandy drift, is at depths of 24 to 32 inches. The
soil is saturated with water in winter and spring. In dry summers the water table drops
below 3 feet. To be suitable for crops, the soil must be drained. Use and suitability.-A
small acreage has been drained, cleared, and used for agriculture. This land is nearly
always farmed along with other soils. Partly cleared, drained areas are used for pasture.
Unless drainage is adequate and pasture grasses are maintained, undesirable plants soon
take over. This soil is more easily drained than many of the other basin soils because its
subsoil is more permeable and allows the use of open drainage ditches. This soil is fertile
and productive if properly drained. Management is similar to that of the Bellingham silt
loam. This soil is in capability subclass IIIw; it is fair for mixed forests consisting of red
alder, Oregon-maple, willow, hemlock, spruce, and redcedar.
Appendix C
Washington State Wetland Rating System Form
WETLAND RATING FORM—WESTERN WASHINGTON
Name of wetland(if known): Moore Wetland
Location: SEC: 29 TWNSHP:23N RNGE:O1 W (attach map with outline of wetland to rating form)
Person(s)Rating Wetland: H. LANE Affiliation: TWC Date of site visit: 2/19/08
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland
I II III X IV
Category I= Score> 70 Score for Water Quality Functions 8
Category lI= Score 51 -69 Score for Hydrologic Functions 6
Category III= Score 30—50 Score for Habitat Functions 19
Category IV= Score <30 TOTAL Score for Functions 33
Category based on SPECIAL CHARACTERISTCS of Wetland
I II Does not apply X
Final Category(choose the "highest" category from above") III
1
Check the appropriate type and class of wetland being rated.
Wetland Type Wetland Class
Estuarine De ressional
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest X Sloe X
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above
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 Special Protection, YES NO
and That are Not Included in the Rating
SP1. Has the wetland been documented as a habitat for any Federally listed Threatened or
Endangered plant or animal species (TIE species)?
For the purposes of this rating system,"documented"means the wetland is on the appropriate X
state or federal database.
SP2. Has the wetland been documented as habitat for any State listed Threatened or Endangered X
plant or animal species? For the purposes of this rating system, "documented"means the
wetland is on the appropriate state database.
SP3. Does the wetland contain individuals of Priority species listed by the WDFW or the state? X
SP4. Does the wetland have a local significance in addition to its functions? For example,the X
wetland has been identified in the Shoreline Master Program,the Critical Areas Ordinance, or
in a local management plan as having special significance.
To complete the next part of the data sheet you will need to determine the
Hydrogeomorphic Class of the wetland being rated.
The hydrogeomorphic classification groups wetlands in to those that function in similar ways. This simplifies the questions
needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wetland can be determined using the key
below. See p. 24 for more detailed instructions on classifying wetlands.
Classification of Vegetated Wetlands for Western Washington
Wetland Name: Moore Wetland Date: 2/28/08
1. Are the water levels in the wetland usually controlled by rides(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. Is the topography within the wetland flat and precipitation is only source(>90%)of water to it.
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 wetland meet both of the following criteria?
The vegetated part of the wetland is on the shores of a body of open water(without any vegetation on the
surface)where at least 20 acres(8ha)are permanently inundated(ponded or flooded);
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 wetland meet all of the following criteria?
x The wetland is on a slope (slope can be very gradual).
x 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.
x 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 I foot deep).
NO—go to 5 YES—The wetland class is Slope
5. Is the wetland in a valley,or stream channel, where it gets inundated by overbank flooding from that stream or river? The
flooding should occur at least once every two years, on the average,to answer"yes". The wetland 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 wetland 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 wetland located in a very flat area with no obvious depressional and no stream or river running through it and
providing water. The wetland 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 seems to be difficult to classify. 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. Sometimes we find
characteristics of several different hydrogeomorphic classes within one wetland boundary. 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 being rated. If the area of the second class is less than 10%classify the wetland using the first class.
HGM Classes Within a Delineated Wetland Boundary Class to Use in Rating
-Slope+Riverine Riverine
-Slope+Depressional Depressional
-Slope+Lake-fringe Lake-fringe
-Depressional+Riverine along stream within boundary De ressional
-Depressional+Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of Treat as ESTUARINE under wetlands with special
freshwater wetland 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.
l
WATER QUALITY FUNCTIONS—Indicators that wetland functions to improve water quality.
S 1 Does the wetland have the potential to improve water quality? (see p.65)
S I A Characteristics of average slope of wetland:
• Slope is 1%or less (a 1%slope has a ]ft. vertical drop in elevation for every 100 ft. hori_ontal
distance)..............................................................................................................................points=3 1
• Slope is 1%-2%.................................................................................................................points=2
• Slope is 2%-5%.................................................................................................................points= 1
• Slope is greater than 5%......................................................................................................points=0
S 1.2 The soil 2 inches below the surface is clay,organic,or smells anoxic(hydrogen sulfide or rotten eggs). 0
YES =3 points NO =0 points
S 1.3 Characteristics of the vegetation in the wetland that trap sediments and pollutants: Choose the points
appropriate for the description that best fits the vegetation in the wetland. Dense vegetation means you
have trouble seeing the soil surface.
• Dense,ungrazed,herbaceous vegetation>90%of the wetland area.....................................points=6 3
• Dense,ungrazed,herbaceous vegetation> %:of area............................................................points=3
• Dense,woody,vegetation> '/2 of area..................................................................................points=2
• Dense, ungrazed, herbaceous vegetation> %4 of area............................................................points= 1
• Does not meet any of the criteria above for vegetation.........................................................points=0
Total for S 1 Add the points in the boxes above 4
S 2 Does the wetland have the opportunity to improve water quality?(see p. 68)
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 thefbllowing conditions provide the sources of pollutants.
Grazing in the wetland or within 150 ft
Untreated stormwater discharges to wetland Multiplier
Tilled fields,logging,or orchards within 150 ft.of wetland P
X Residential,urban areas,golf courses are within 150 ft. upslope of wetland
_ Other 2
YES multiplier is 2 NO multiplier is I
♦ TOTAL—Water Quality Functions Multiply the score from S 1 by S2; then add score to table on p. 1 8
Comments:
HYDROLOGIC FUNCTIONS—Indicators that wetland functions to reduce flooding and stream erosion.
S 3 Does the wetland have the potential to reduce flooding and stream erosion? (see p.69)
S 3.1 Characteristics of vegetation that reduce the velocity of surface flows during storms: Choose the points
appropriate for the description that best fits conditions in the wetland.
• Dense, uncut, rigid vegetation covers>90%of the area of the wetland: Stems of plants should be
thick enough(usually> 1/8 in.)or dense enough to remain erect during surface flows.........points=6 1
• Dense,uncut, rigid vegetation> 1/2 area of wetland............................................................points=3
• Dense, uncut, rigid vegetation> 1/4 area.............................................................................points= 1
• More than 1/4 of area is grazed,mowed tilled or vegetation is not rigid.............................points=0
S 3.2 Characteristics of slope wetland that holds back small amounts of flood flows.
The slope has small surface depressions that can retain water over at least 10%of its area. 2
YES =2 points NO =0 points
Add the points in the boxes above 3
S 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p. 71)
Is the wetland in a landscape position where the reduction in water velocity it provides helps protect
downstream property and aquatic resources from flooding or excessive and/or erosive flows? Note
which of the following conditions apply.
_ Wetland has surface runoff that drains to a river or stream that has flooding problems Multiplier
Other P
(Answer NO if the major source of water is controlled by a reservoir(e.g. wetland is a seep that is on
the downstream side of a dam) 2
YES multiplier is 2 NO multiplier is 1
♦ TOTAL—Hydrologic Functions Multiply the score from S3 by S4;then add score to table on p. 1 6
Comments:
These questions apply to wetlands of all HGM classes.
HABITAT FUNCTIONS—Indicators that wetland functions to provide important habitat.
H 1 Does the wetland have the potential to provide habitat for many species?
H 1.1 Vegetation structure(see P. 73):
Check the types of vegetation classes present(as defined by Cowardin)if the class covers more than
10%of the area of the ivetland or 114 acre.
Aquatic Bed
X Emergent plants
Scrub/shrub(areas where shrubs have>30%cover) 2
X Forested(areas where trees have>30%cover)
X Forested areas have 3 out of 5 strata(canopy, sub-canopy, shrubs,herbaceous,moss/ground-cover
Add the number of vegetation types that qualify. If you have:
4 types or more....points=4 3 types...points=2
2 types.................points= 1 1 type....points=0
H 1.2 Hydroperiods(see p.74):
Check the types of water regimes(hydroperiods)present within the wetland. The water regime has to
cover more than 10%of the wetland or 114 acre to count(see text for descriptions of hydroperiods).
Permanently flooded or inundated
X Seasonally flooded or inundated 4 or more types present......points=3
Occasionally flooded or inundated 3 types present...................points=2 1
X Saturated only 2 types present...................points= 1
_ 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
H 1.3 Richness of Plant Species(seep. 76):
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 1
List species below(optional): <5 species........................points=0
H 1.4 Interspersion of Habitats (seep. 77):
Decided from the diagrams below whether interspersion between types of vegetation(described in
H1.1),or vegetation types and unvegetated areas(can include open water or mudflats)is high,medium,
low, or none.
00 �
None=0 points Low= 1 point Moderate=2 points
�• [riparian braided channels]
High =3 points
Note: If you have 4 or more vegetation types or 3 vegetation types and open water,the rating is always
"high".
H 1.5 Special Habitat Features (seep. 78):
Check the habitat features that are present in the wetland. The number of checks is the number of point
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 I
3.3 ft. (1 m)over a stream for at least 33 ft. (1 Om)
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
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
H 1 TOTAL Score—potential for providing habitat Add the points in the column above 7
g 2 Does the wetland have the oaaortunity to provide habitat for many species?
H 2.1 Buffers (see P. 81):
Choose the description that best represents condition of buffer of wetland. 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 developed areas within undisturbed part of buffer
(relatively undisturbed also means no grazing)..........................................................points=5
X 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 4
_ 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 three 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
Buffer does not meet any of the criteria above...............................................................points=1
H 2.2 Corridors and Connections(seep. 82)
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 4
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
H 2.3 Near or adjacent to other priority habitats listed by WDFW(see p. 83):
Which of the following priority habitats are within 330 ft.(100m)of the wetland?
(See text for a more detailed description of these priority habitats.)
X 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 1
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...= I point
If wetland has 2 priority habitats..............=3 points No habitats................................=0 points
H 2.4 Wetland Landscaye: Choose the one description of the landscape around the wetland that best fits
(seep. 85)
• 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 3
• 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
within1/2 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
H 2 TOTAL Score—opportunity for providing habitat Add the scores in the columns above 4
♦ Total Score for Habitat Functions Add the points for H 1 and H 2;then record the result on p. 1 Ll9
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine i the wetland meets the attributes described below
f
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.
C1 Estuarine wetlands? (see p.87)
Does the wetland 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
SC 1.1 Is the wetland 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- Cat. 1
30-151?
YES =Category I NO=go to SC 1.2
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 Cat. I
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 Cat.II
that cover more than 10%of the wetland,then the wetland should be given a dual rating(1/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. Dual
At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un-grazed Rating
or un-mowed grassland I/II
The wetland has at least 2 of the following features: tidal channels, depressions with open water,
or contiguous freshwater wetlands.
C2 Natural Heritage Wetlands (seep. 88)
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. 88)and go to SC 2.2 NO
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? Cat I
YES =Category 1 NO
C3 Bogs (seep. 88)
Does the wetland(or part of the wetland)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 wetland 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 wetland 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 hold 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 wetland 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)? Cat. I
YES=Category I NO=Is not a bog for purpose of rating
C4 Forested Wetlands (seep. 96)
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.
X 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. Cat.I
YES=Category I NO=
C5 Wetlands in Coastal Lagoons(seep. 92)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
_ The wetland lies in a depressional 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. Cat. I
The wetland is larger than 1/10 acre(4350 square ft.)
YES=Category I NO =Category II Cat. II
SC6 Interdunal Wetlands (seep. 94)
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 Cat. 11
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. 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
RECEIVED
MAR 1 12008
MASON COUNT