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Wetland Delineation • Habitat Management Plans • Riparian Restoration - Mitigation • Biological Evaluation
VAN ECK WETLAND DELINEATION REPORT
Parce1223097500240
461 NE Horseshoe Drive
Belfair,Washington
Mason County A
to 'O�►
oe 2
Prepared for:
Richard Van Eck
461 NE Horseshoe Drive
Belfair,WA 98528
Prepared by:
Lee Boad and Heather Lane
May,2008
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421-boad40@peoplepc.com
THE WETLAND CORPS
Wetland Delineation - Habitat Management Plans • Riparian Restoration - Mitigation - Biological Evaluation
VAN ECK WETLAND DELINEATION REPORT
TABLE OF CONTENTS
INTRODUCTION......................................................................................................................... 1
GENERALSITE CONDITIONS................................................................................................ I
METHODOLOGY....................................................................................................................... 1
BACKGROUNDINFORMATION ............................................................................................2
WETLANDDELINEATION RESULTS................................................................................... 3
WETLANDEVALUATION............................................................................................................................5
WETLANDCONCLUSION........................................................................................................ 5
REFERENCES..............................................................................................................................6
Figures
Figure 1. Site Vicinity Map
Figure 2. Site 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
THE WETLAND CORPS _
Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation
May, 2008 Project#TWC08W44
Page 1 of 13
VAN ECK WETLAND DELINEATION REPORT
461 NE Horseshoe Drive
Belfair,WA
INTRODUCTION
The Wetland Corps has been authorized by Richard Van Eck to perform a wetland
delineation at the above referenced property located in Belfair, Mason County,
Washington, (Tax Identification Number 223097500240). The delineation was
performed to identify wetlands and associated buffers that would be applicable to the
proposed construction of a garage within the property. The delineation was completed
during May, 2008.
The property is located in the northeastern quarter of Section 09, Township 23 North,
Range 02 West WM (Figure 1 Vicinity Map). The entire ownership is approximately 5.1
acres 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 providedparagraph
�
in 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 ownership is accessed via NE Horseshoe Drive, which also makes up eastern
boundary of the parcel. The ownership is generally surrounded by residential parcels of
similar size and shape. The western portion of the parcel is developed with a single
family residence, driveway, and cleared area from NE Horseshoe Drive. The eastern half
of the parcel is occupied by a portion of a large wetland system, characterized by a dense
community of spirea and slough sedge. The upland, undeveloped portion of the
ownership within the western side consists of forested areas comprised of Douglas fir,
western hemlock and an understory of salal,evergreen huckleberry, and Oregon grape.
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
PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Van Eck Wetland Delineation
TWC08-W44
May,2008
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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 May 20t', 2007. Field work was conducted under cloudy skies with an
ambient temperature ranging between 70 and 75 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 three 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.
BACKGROUND INFORMATION
Mason County Soil Survey
The soil survey of Mason County indicates two onsite soil types, (USDA, 1951):
Ab - Alderwood gravelly sandy loam, S to IS percent slopes. The Alderwood series
consists of brown, well-drained, upland soils. They have developed from mixed gravelly
glacial till dominated by acid igneous rock. The imbedded gravel is mainly granite and
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Van Eck Wetland Delineation
TWC08-W44
May,2008
Page 3 of 13
quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest
consisting almost entirely of Douglas-fir and a dense understory of salal, Oregon-grape,
vine maple, and huckleberry. Northeast of the Hood Canal the understory is mainly
rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they
are the dominant soils in the eastern part of the county. The Alderwood soils are
associated with the somewhat excessively drained Everett and Indianola soils and with
the moderately well drained Kitsap soils. The Alderwood gravelly sandy loam, 5 to 15
percent slopes (Ab) is the most extensive, soil of the Alderwood series. It occupies
undulatingto rolling moraines. Alderwood raven sand loam 15 to 30 percent slopes
g gravelly Y � P P
(Ac).-This soil varies more in depth, but otherwise it is similar to Alderwood gravelly
sandy loams, 5 to 15 percent slopes.
Tanwax peat, 0 to 2 percent slopes (Tb).-The Tanwax series consists of brown peat
derived from sedimentary materials that decompose fairly completely into highly
colloidal, smooth, peaty material having a greasy feel. The bogs are saturated throughout
the year, but they dry enough for spirea to become established and contribute
considerable plant residue to the upper part of the peat. The peat gives up moisture
slowly, but once the peat has dried, the resulting hard, persistent lumps are difficult to
saturate again. Tanwax peat, 0 to 2 percent slopes (Tb) occurs in small isolated areas,
generally in association with poor agricultural soils.
A more detailed soil description can be found in Appendix B Mason Soil Survey Text.
The Mason Soil Survey map is shown in Figure 4.
National Wetlands Inventory
The USFWS NWI map (online wetlands mapper) shows the onsite wetland mapped
within the approximate property location (Figure 3. National Wetland Inventory Map).
The onsite wetland is classified by the NWI as [P] Palustrine [EM] Emergent [F]
Semipermenantly flooded.
Department of Natural Resources Water Resource
The Department of Natural Resources Water Resource Map shows one stream within the
vicinity of ownership. The stream is mapped approximately 500 feet south of the parcel,
and appears to drain from the identified wetland. The stream converges with several
other streams to eventually drain into the Tahuya River, located approximately 1.5 miles
south of the subject parcel.
WETLAND DELINEATION RESULTS
A portion of a large wetland system was identified along the western portion of the
parcel. The entire wetland is approximately 11 acres in size, with approximately 2.75
acre extending into western portion of the subject parcel. The wetland appears to be
hydrologically supported by several sources, including a fluctuating water table and
seasonal runoff from surrounding topography.(See Figure 5. DNR Water Resources
PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Van Eck Wetland Delineation
TWC08-W44
May,2008
Page 4 of 13
Map). Surface water leaves the wetland via an unconstricted surface water outlet at the
southern end of the wetland.
I
' x
s&
,.
m e
NE BLACKSMITH pR
+
Photo 1. General size and shape of entire onsite wetland system,outlined in yellow. Subject parcel,
circled in red. Slope Wetland,circled in green. Photo taken from Mason County GIS Aerial Photo,
2005.
I
Vegetation
The portion of the wetland within the property is dominated by a dense shrub community
f s irea S iraea dou lash FACW with scattered herbaceous layer of slough sedge
o Y
P ( P % )
( PCarex obnu ta, OBL) and few overstory components along the outer fringe of the
wetland, comprised of red alder (Alnus rubra, FAQ and western red cedar (Thuja
PLicata, FAC). An aquatic bed occupies the central portion of the entire wetland,
comprised of lily pad (Nuphar luteum, OBL).
The upland vegetation adjacent to the wetland is comprised of an overstory of Douglas fir
(Pseudotsuga menziesii, FACU) with lesser amounts of western hemlock (Tsuga
heterophylla, FACU+). Understory species consist of salal (Gaultheria shallon, FACU),
evergreen huckleberry (Vaccinium ovatum, FACU), brackenfern (Pteridium aquilinum,
FACU), swordfern (Polystichum munitum, FACU) and Oregon grape (Mahonia nervosa,
UPL).
Soils
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Van Eck Wetland Delineation
TWC08-W44
May,2008
Page 5 of 13
The wetland test pits consist of silt loam matrix chroma 1 OYR 3/1 to a depth of 12 inches,
with a high content of organic matter. Although the portions of the wetland within the
property did not exhibit soil profiles consistent with the mapped soil type, Tanwax Peat,
it is likely that the central portions of the wetland that are permanently inundated contain
soil charatacteristics similar to Tanwax Peat. Tanwax Peat is listed on the 2008 National
Hydric Soils List.
The soil profiles observed in known upland test pits were consistent with the mapped soil
type, Alderwood gravelly sandy loam. Upland test pits exhibited a two-layer soil profile.
The upper layer consists of gravelly sandy loam approximately five to eight inches deep
of matrix chroma 10YR 3/3 and 3/4. The lower profile contained less gravel with a
matrix chroma of 10 YR 6/3 and 10YR 6/4. No hydric soil indicators were present in
upland soil test pits.
HydrolM
Hydrology was indicated by FAC-neutral vegetation, drift lines, drainage patterns,
sediment deposits, mapped hydric soil, and water-stained leaves. In addition, the test pits
revealed soil saturation, inundation and free water in the test pits during the growing
season. On the day of the field visit, the portion of the wetland within the property was
inundated up to 1.2 inches. Upland test pits showed no indicators of wetland hydrology.
WETLAND EVALUATION
The onsite wetland meets criteria for a Depressional wetland based on functions 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 II
wetland, scoring 68 points on the state rating form. The score for water quality functions
in this wetland is 24,hydrological functions scored 20, and the score for habitat functions
is 24. According to Table 17.01.070 E of the Mason County Resource Ordinance, the
base buffer width for Category II Wetlands scoring between 20 to 28 points in habitat
function, within parcels intended for Moderate Impact Land Use is 110 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 single-family residential lots or
residential subdivisions with 1 unit/acre or less.
SUMMARY
This report discusses the presence of a Category II Wetland within the subject property.
The wetland requires a buffer of I I0-feet with an additional 15-foot building setback in
Mason County. See Figure 2. Site Map for the approximate wetland and associated
buffer location within the property.
Thank you for choosing The Wetland Corps as your environmental consultant. If you
have any questions, feel free to call.
PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
• Van Eck Wetland Delineation
TWC08-W44
May,2008
Page 6 of 13
Respectfully submitted,
The Wetland Corps
Heather L
Staff Wetland Specialist
i
Lee Boad
Senior Ecologist
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
I'I
Van Eck Wetland Delineation
TWC08-W44
May,2008
Page 7 of 13
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.
Guide to the Common Wetland Plants o
Speare Cooke, S., 1997. A Field Gu .f
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
I
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: Van Eck Wetland Delineation
/ Location: Belfair,WA
Ar Project: TWC08-W44
Client: Richard Van Eck
Date: 5/08
THE WETLAND CORPS
p 100'
►
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= II
I 1 Category IT I Wetland
� 11
s I I 110' buffer + 15' building
°m 1 ► setback
m I5' t 110'
xlsting Access/Clearing
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Existing SF ♦ /
This site map was created by TWC by
coordinating measurements and information
from several sources, including the Mason
County Assessor Aerial Photo 2005 and
GoogleEarth aerial images and measurements.
All locations are approximate.
FIGURE 2. SITE MAP
Project Name: Van Eck Wetland Delineation
Location: Belfair,WA
Project: TWC08-W44
,TIH W'TLA1�I3J CORPS Client: Richard Van Eck
WETLAND 3J Date: 5/08
Map Legend PFOA Pssc
PEk : PE..
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CONUS Cities ?t'S5
CONUS State t00K W �
(� Approximate PFOC (5. 02*1
Lower 48 Wetland Polygons parcel
tduanne and Marine Oeepwatet location '
tstuanne and Marine Welland r$?7J
Freshwater Em tgenl Welland PUB" nb?'p7
freshwater Forested'ShrubWtlland
it
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other use
PA
filverint �, �
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ky}
PEMC Lake Wooten
0 0.25 mile
r�BN Rap c:anler:47 33 12'N, 122 55 37"'v'1
Figure adapted from NWI Figure 3 National Wetland Inventory Map
Mapper website Section 32 Township 21 North Range 2 West
FIGURE 3.NWI MAP
Project Name: Van Eck Wetland Delineation
Location: Belfair,WA
Project: TWC08-W44
Client: Richard Van Eck
Date: 5/08
THE WETLAND CORPS Note: One wetland mapped in project vicinity.
N f
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Approximate
t, Parcel Location
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Onsite Soil Conditions based on Mason County Soil Survey
Subject Site Soils:
Ab-Alderwood gravelly sandy loam, 5 to 15 percent slopes. The Alderwood series consists of brown,well-drained, upland
soils. They have developed from mixed gravelly glacial till dominated by acid igneous rock. The imbedded gravel is mainly
granite and quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest consisting almost entirely of
Douglas-fir and a dense understory of salal, Oregon-grape, vine maple, and huckleberry. Northeast of the Hood Canal the
understory is mainly rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they are the dominant
soils in the eastern part of the county. The Alderwood soils are associated with the somewhat excessively drained Everett and
Indianola soils and with the moderately well drained Kitsap soils. The Alderwood gravelly sandy loam, 5 to 15 percent slopes
(Ab) is the most extensive, soil of the Alderwood series. It occupies undulating to rolling moraines.Alderwood gravelly sandy
loam, 15 to 30 percent slopes (Ac).-This soil varies more in depth, but otherwise it is similar to Alderwood gravelly sandy
loams,5 to 15 percent slopes.
Tanwax peat, 0 to 2 percent slopes (Tb).-The Tanwax series consists of brown peat derived from sedimentary materials that
decompose fairly completely into highly colloidal, smooth, peaty material having a greasy feel. The bogs are saturated
throughout the year, but they dry enough for spirea to become established and contribute considerable plant residue to the
upper part of the peat. The peat gives up moisture slowly, but once the peat has dried, the resulting hard,persistent lumps are
difficult to saturate again. Tanwax peat, 0 to 2 percent slopes (Tb) occurs in small isolated areas, generally in association
with poor agricultural soils.
FIGURE 4 SOIL SURVEY
Project Name: Van Eck Wetland
Delineation
Location: Belfair,WA
Project: TWC08-W44
THE 'A'ETL_-'i N D COR P-S Client: Richard Van Eck
Date: 5/08
Note: Hydric soils present in project
vicinity.
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SOILS
STREAMS Hvdric Soils TRANSPORTATION
Hi21ilr Unstable
Stream Water Type 1-5(East Ude) /^0 Paved Road
Hiehlc Erodible
Stream Type L:known(East side} H_zW,Umtab:e iQ Unpaved Road
H:_hh Erodible
Stream Water Type -5 i;A'est side; No Data or Gravel Pits Road(Surface Ulil�ion7i)
lJ Stream TypeL:=knonv(West side', ��AUanclouecl Road
tea°" Otplianecl Road
Trail
FIGURE 5 DNR STREAM MAP
Project Name: Van Eck Wetland Delineation
Location: Belfair,WA
Project: TWC08-W44
' V Client: Richard Van Eck
THE 'v\'ETL-y N D CORPS Date: 5/08
Note: No streams mapped within approximate
parcel location.
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: Van Eck Wetland Delineation Date: 5/20/2008
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/shrub
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
Spiraea douglasii S 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? Yes Water Marks: No Sediment Deposits: Yes
Based on: May Drift Lines: Yes Drainage Patterns: Yes
Depth of inundation: 8" Oxidized Root(live roots) Local Soil Survey: Yes
Channels <12in.: No
Depth to free water in pit: 0 inches FAC Neutral: Yes Water-stained Leaves: no
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: Tanwax peat Drainage Class: poorly drained
Field observations confirm mapped type? No
Profile Description
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)
0-12 10YR 3/1 Silt loam
Hydric Soil Indicators: (check all that apply)
❑ Histosol ❑ Matrix chroma s 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
X Gleyed or Low-Chroma(=1) matrix ❑ Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 throughout the entire soil profile
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 4/97
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual)
Project/Site: Van Eck Wetland Delineation Date: 5/20/2008
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane
State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/shrub
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
Spiraea douglasii S 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? Yes Water Marks: No Sediment Deposits: Yes
Based on: May Drift Lines: Yes Drainage Patterns: Yes
Depth of inundation: No inundation Oxidized Root(live roots) Local Soil Survey: no
Channels <12in.: No
Depth to free water in pit: 5 inches FAC Neutral: Yes Water-stained Leaves: no
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: Tanwax peat Drainage Class: poorly drained
Field observations confirm mapped type? No
Profile Description
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)
0-12 10YR 3/1 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
X Gleyed or Low-Chroma(=1) matrix ❑ Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 throughout the entire soil profile
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: Van Eck Wetland Delineation Date: 5/20/08
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/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
Psuedotsuga menziesll T FACU
Gaultheria shallon S FACU
Vaccinium ovatum S FACU
Po/ystichum munitum S FACU
Mahonia nervosa S UPL
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? Yes Water Marks: No Sediment Deposits: No
Based on: May Drift Lines: No Drainage Patterns: No
Depth of inundation: No inundation Oxidized Root(live roots) Local Soil Survey: No
Channels <12in.:
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: Ab-Alderwood gravelly sandy loam Drainage Class: well drained
Field observations confirm mapped type? Yes
Profile Description
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)
0-5 10YR 3/4 Gravelly sandy loam
5-16 10YR 6/3 Sandy 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
i -
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual)
Project/Site: Van Eck Wetland Delineation Date: 5/20/2008
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
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: 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
Spiraea doug/asii S FACW
Carex obnupta H OBL
Nuphar luteum 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? Yes Water Marks: No Sediment Deposits: Yes
Based on: May Drift Lines: Yes Drainage Patterns: Yes
Depth of inundation: 8 inches Oxidized Root(live roots) Local Soil Survey: no
Channels <12n.: No
Depth to free water in pit: 5 inches FAC Neutral: Yes Water-stained Leaves: no
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.
I�
SOILS
Map Unit Name: Tanwax Peat Drainage Class: poorly drained
Field observations confirm mapped type? No
Profile Description
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)
0-12 10YR 3/1 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
X Gleyed or Low-Chroma (=1) matrix ❑ Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 throughout the entire soil profile
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: Van Eck Wetland Delineation Date: 5/20/08
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/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
Psuedotsuga menziesii T FACU Vaccinium ovatum S FACU
Thuja plicata T FAC
Alnus rubra T FAC
Po/ystichum munitum S FACU
Mahonia nervosa S UPL
Gaultheria shal/on S FACU
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
i
Is it the growing season? Yes Water Marks: No Sediment Deposits: No
Based on: May Drift Lines: No Drainage Patterns: No
Depth of inundation: No inundation Oxidized Root(live roots) Local Soil Survey: No
Channels <12in.:
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: Ab-Alderwood gravelly sandy loam Drainage Class: well 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)
0-5 10YR 3/4 Gravelly sandy loam
5-16 10YR 6/3 Sandy 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: Van Eck Wetland Delineation Date: 5/20/2008
Applicant/owner: Richard County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/shrub
Is the site significantly disturbed (atypical situation)? No Transect ID: 3
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
Spiraea douglasii S 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? Yes Water Marks: No Sediment Deposits: Yes
Based on: May Drift Lines Yes^ Drainage Patterns: Yes
Depth of inundation: 6 inches Oxidized Root(live roots) Local Soil Survey: no
Channels <12in.: No
Depth to free water in pit: 5 inches FAC Neutral: Yes Water-stained Leaves: no
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
I
Map Unit Name: Tanwax Peat Drainage Class: Poorly drained
Field observations confirm mapped type? No
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)
0-12 10YR 3/1 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
X Gleyed or Low-Chroma(=1) matrix ❑ Other(explain in remarks
Hydric soils present?Yes
Rationale for decision/Remarks: Low-chroma= 1 throughout the entire soil profile
I
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 4/97
I
Routine Wetland Determination
DATA FORM 1 (Revised)
WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual
Project/Site: Van Eck Wetland Delineation Date: 5/20/08
Applicant/owner: Richard Van Eck County: Mason
Investigator(s): H. Lane State: WA
S/T/R: 9 T23N R02W
Do normal circumstances exist on the site? Yes Community ID: forested/shrub
Is the site significantly disturbed (atypical situation)? No Transect ID: 3
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
Psuedotsuga menziesii T FACU
Polystichum munitum S FACU
Gaultheria sha/lon S FACU
Vaccinium ovatum S FACU
Pteridium aquilinum S FACU
Rubus spectabilis S FACU
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? Yes Water Marks: No Sediment Deposits: No
Based on: May 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
Ir
SOILS
Map Unit Name: Ab-Alderwood gravelly sandy loam Drainage Class: well drained
Field observations confirm mapped type? Yes
Profile Description
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)
0-5 10YR 3/4 Gravelly sandy loam
5-16 10YR 6/3 Sandy 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
APPENDIX B
Soil Survey Text
ALDERWOOD SERIES
The Alderwood series consists of brown, well-drained, upland soils. They have
developed from mixed gravelly glacial till dominated by acid igneous rock. The
imbedded gravel is mainly granite and quartzite. Rainfall is 45 to 60 inches a year. The
native vegetation is a dense forest consisting almost entirely of Douglas-fir and a dense
understory of salal, Oregon-grape, vine maple, and huckleberry. Northeast of the Hood
Canal the understory is mainly rhododendron. Alderwood soils occupy the extensive
rolling glacial moraines, and they are the dominant soils in the eastern part of the county.
The Alderwood soils are associated with the somewhat excessively drained Everett and
Indianola soils and with the moderately well drained Kitsap soils. Shelton and Hoodsport
soils differ from the Alderwood soils in that they have developed under high rainfall and
from glacial till having a much higher content of basic igneous rock. The Shelton and
Hoodsport soils are more reddish throughout the profile. The Shelton soils are usually
deeper to the cemented till than the Alderwood soils.
Alderwood gravelly sandy loam, 5 to 15 percent slopes (Ab).-This is the most
extensive, soil of the Alderwood series. It occupies undulating to rolling moraines. In
undisturbed areas a 1- to 2-inch mat of very dark brown, acid organic matter is on the
surface. This grades to a thin, dark grayish-brown, highly organic mineral soil. The
surface soil consists of a friable, brown, medium acid gravelly sandy loam 8 to 13 inches
deep. It has a weak granular structure and contains numerous rounded shot. Below the
surface soil, to depths ranging from 18 to 24 inches, is a pale-brown gravelly sandy loam
that is very friable, is single grained; and contains small to moderate amounts of shot .
Between this layer and the cemented till is a 3- to 10-inch layer of very pale brown
gravelly sandy loam. It contains no shot and is firmer but has the same texture as the
layer above. However, it is faintly to distinctly spotted and horizontally streaked with
brown and yellow. The cemented till consists of light-gray, gravelly sandy loam, and it
normally occurs at depths ranging from 24 to 32 inches. It is impermeable to roots and
very slowly permeable to water. The first few inches is usually laminated and streaked
with reddish brown and yellow. Below this, to a depth of many feet, the till is uniformly
cemented, fairly uniform light gray, and medium to strongly acid. A thin mat of roots
often lies over the till. The cemented substratum tends to restrict the rapid downward
movement of moisture. Use and suitability.-Not more than about 5 percent of this soil has
been cleared and is used for crops or pasture. Most of the cultivated acreage is near the
inlets of Puget Sound in the vicinities of Arcadia and Allyn. In this area the Alderwood
soils are associated with the better agricultural soils of the Cloquallum, Sinclair and
Kitsap series. Hay, small grains, pasture, fruits, nuts, grapes, and berries are the principal
crops grown on the Alderwood soils. The lack of subsoil moisture damages crops in
summer. For this reason, early maturing, short-season crops are suited best to this soil.
Yields of all crops are usually fairly low because of low fertility and the dry summers.
Pastures produce good forage in spring and late in fall if proper plants are used and
management is good. The deeper soils are suited best to fruits, nuts, and grapes. The
uncleared and remote areas are better suited to forestry than to cultivated crops. Nearly
all the uncleared acreage is in second-growth forest 70 to 80 years of age. Shallowness to
the compact till often inhibits growth of the older trees. The soil, however, is well suited
to production of Christmas trees. Douglas-fir readily restocks in thick stands containing
trees of good form. Stands of small trees are often thinned and pruned to maintain good
form of growth. The growing of Christmas trees has expanded rapidly in the past few
years and is now one of the important industries in the county. It is one of the proper uses
of the cutover lands that are not in a high site class. Alder-wood soils need barnyard
manure, green manure, nitrogen, or legumes to maintain a fertility for crop production.
Phosphate fertilizers and green manure or barnyard manure greatly improve fertility.
Nitrogen fertilizer is often applied with barnyard manure or when cover crops are plowed
under. The fertilizer furnishes additional nitrogen needed to hasten decay of the organic
matter. This soil is in capability subclass VIs and in site classes 4 and 5 for Douglas-fir.
Small areas along- the border, where the soil is more than 32 inches deep to compact till,
are in site classes 3 and 4 for Douglas-fir.
TANWAX SERIES
The Tanwax series consists of brown peat derived from sedimentary materials that
decompose fairly completely into highly colloidal, smooth, peaty material having a
greasy feel. The bogs are saturated throughout the year, but they dry enough for spirea to
become established and contribute considerable plant residue to the upper part of the
peat. The peat gives up moisture slowly, but once the peat has dried, the resulting hard,
persistent lumps are difficult to saturate again.
Tanwax peat, 0 to 2 percent slopes (Th).-This soil occurs in small isolated areas,
generally in association with poor agricultural soils. The surface soil, 10 to 16 inches
thick, consists of a very dark grayish-brown mixture of woody spirea fragments and
sedimentary peat. It is strongly acid and friable. This grades to darkbrown or dark
grayish-brown, smooth, greasy-feeling sedimentary peat containing little fibrous material.
At depths of 24 to 30 inches, it is nearly black and highly colloidal. The substratum, at
various levels below a depth of 30 inches, is compact gravel or gravelly till. In many
areas, lenses of gray, chalklike diatomaceous earth, 1 to 4 inches thick, occur at various
depths. Usually they are in the upper part of the profile. They are intermittent and
sporadic. The lenses of diatomaceous earth occur more commonly in Tanwax peat than in
any of the other peats. Tanwax peat is strongly acid, difficult to drain, and hard to work if
too well drained. Use and suitability.-Practically none of this soil is farmed. It is of
moderately low agricultural value(capability subclass IVw).
Appendix C
Washington State Wetland Rating System Form
WETLAND RATING FORM-WESTERN WASHINGTON
Name of wetland(if known): Van Eck Wetland
Location: SEC: 09 TWNSHP:23N_ RNGE:2 W_ (attach map with outline of wetland to rating form)
Person(s) Rating Wetland: H. Lane Affiliation: TWC Date of site visit: 5/20/08
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland
I II X III IV
Category I = Score> 70 Score for Water Quality Functions 24
Category 11 = Score 51 -69 Score for Hydrologic Functions 20
Category III = Score 30-50 Score for Habitat Functions 24
Category IV = Score <30 TOTAL Score for Functions 68
Category based on SPECIAL CHARACTERISTCS of Wetland
1 11 Does not apply X
Final Category(choose the "highest" category from above") [I
Check the appropriate type and class of wetland being rated.
Wetland Type Wetland Class
Estuarine De ressional X
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest -Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above X
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 habitatfor any Federally listed Threatened or
Endangered plant or animal species (TIE species)? X
For the purposes of this rating system, "documented" means the wetland is on the appropriate
state or federal database.
SP2. Has the wetland been documented as habitat for any State listed Threatened or Endangered
plant or animal species? For the purposes of this rating system, "documented" means the X
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
wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or X
in a local management plan as having special significance.
To complete the next part of the data sheet you will need to determine the
Hyydrogeomorphic 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. ,
Wetland Rating Form-western Washington(11/04) Page 1 of 8
Classification of Vegetated Wetlands for Western Washington
Wetland Name: Van Eck Wetland Date: 5/20/08
1. Are the water levels in the wetland usually controlled by tides(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?
The wetland is on a slope (slope can be very gradual).
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.
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 1 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 Depressional
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.
Wetland Rating Form—western Washington(11/04) Page 2 of 8 '
IF
D Depressional and Flat Wetland
WATER QUALITY FUNCTIONS— Indicators that wetland functions to improve water quality.
D 1 Does the wetland have the potential to improve water quality? (see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
• Wetland is a depression with no surface water outlet............................................................points=3
• Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 1
• Wetland has an unconstricted surface outlet.........................................................................points= I
• Wetland is flat and has no obvious outlet and/or outlet is a ditch..........................................points= 1
Th D 1.2 e soil 2 inches below the surface is clay,organic,or smells anoxic(hydrogen sulfide or rotten eggs). 4
YES points=4 NO points=0
D 1.3 Characteristics of persistent vegetation(emergent, shrub,and/or forest class):
• Wetland has persistent,ungrazed vegetation>=95%of area...............................................points=5
• Wetland has persistent,ungrazed vegetation>='/:of area...................................................points=3 3
• Wetland has persistent,ungrazed vegetation>= 1/10 of area...............................................points= 1
• Wetland has persistent, ungrazed vegetation< 1/10 of area..................................................points=0
D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is ponded or at
least 2 months, but dries out sometime during the year. Do not count the area that is permanently
ponded. Estimate area as the average condition 5 out of 10 years. NOTE: See text for indicators of
seasonal and permanent inundation. 4
• Area seasonally ponded is> 1/2 total area of wetland...........................................................points=4
• Area seasonally ponded is> 1/4 total area of wetland...........................................................points=2
• Area seasonally ponded is< 1/4 total area of wetland...........................................................points=0
Total for D 1 Add the points in the boxes above 12
D 2 Does the wetland have the opportunity to improve water quality? (see p. 44)
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 the following conditions provide the sources of pollutants.
Grazing in the wetland or within 150 ft
_ Untreated stormwater discharges to wetland
Tilled fields or orchards within 150 ft.of wetland
_ A stream or culvert discharges into wetland that drains developed areas,residential areas,farmed
fields,roads,or clear-cut logging
X Residential,urban areas,golf courses are within 150 ft.of wetland Multiplier
Wetland is fed by groundwater high in phosphorus or nitrogen
Other 2
YES multiplier is 2 NO multiplier is 1
♦ TOTAL—Water Quality Functions Multiply the score from Dl by 132;then add score to table on p. 1 24
HYDROLOGIC FUNCTIONS—Indicators that wetland functions to reduce flooding and stream degradation.
D 3 Does the wetland have the potential to reduce flooding and erosion? (see p.46)
D 3.1 Characteristics of surface water flows out of the wetland:
• Wetland has no surface water outlet.....................................................................................points=4
• Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 0
• Wetland is flat and has no obvious outlet and/or outlet is a small ditch.................................points= 1
• Wetland has an unconstricted surface outlet.........................................................................Voints=0
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet.
• Marks of ponding are 3 ft.or more above the surface...........................................................points=7
• The wetland is a"headwater wetland"..................................................................................points=5
• Marks of ponding between 2 ft.to<3 ft.from surface.........................................................points=5 5
• Marks are at least 0.5 ft.to<2 ft.from surface....................................................................points=3
• Wetland is flat but has small depressions on the surface that trap water................................points= 1
• Marks of ponding less than 0.5 ft.......................................................................... ............. oints=0
D 3.3 Contribution o wetlandto storage in the watershed: Estimate the ratio o ..
upstream asm contra uting
surface water to the wetland to the area of the wetland itself.
• The area of the basin is less than 10 times the are of wetland ...............................................points=5 5
• The area of the basin is 10 to 100 times the area of the wetland............................................points=3
• The area of the basin is more than 100 times the area of the wetland....................................points=0
• Wetland is in the FLATS class basin=the wetland by definition ......................................points=5
Total for D 3 Add the points in the boxes above 10
D 4 Does the wetland have the opportunity to reduce flooding and erosion? (seep. 49)
Answer YES if the wetland is in a location in the watershed where the flood storage,or reduction in water
velocity,it provides helps protect downstream property and aquatic resources from flooding or excessive and/or
erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate,
tide gate,flap valve,reservoir etc.OR you estimate that more than 90%of the water in the wetland is from
groundwater. Note which of the following indicators of opportunity apply.
Wetland is in a headwater of a river or stream that has flooding problems.
X Wetland drains to a river or stream that has flooding problems
Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or Multiplier
stream that has flooding problems
Other 2
YES multiplier is 2 NO multiplier is 1
♦ TOTAL—Hydrologic Functions Multiply the score from D3 by 134;then add score to table on p. 1 �20
Wetland Rating Form—western Washington(1 1/04) Page 3 of 8 '
HABITAT FUNCTIONS—Indicators that wetland functions to provide important habitat.
H 1 Does the wetland have the aotential 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 wetland or 114 acre.
X Aquatic Bed
Emergent plants
X Scrub/shrub (areas where shrubs have>30%cover) 4
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).
X Permanently flooded or inundated
X Seasonallyflooded or inundated 4 or more t
es resent.....points=3
X Occasionally flooded or inundated 3 types present..................points
se p =2 3
Saturated only 2 types present..................points= 1
X 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 (see p. 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 1
5— 19 species....................points= 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
H I A),or vegetation types and unvegetated areas(can include open water or mudflats)is high,medium,
low,or none.
0o (:0
None=0 points Low= 1 point Moderate=2 points
3
[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 (see p. 78):
Check the habitat features that are present in the wetland. The number of checks is the number of points
you put into the next column.
X Large, downed, woody debris within the wetland (>4 in. diameter and 6 ft. long)
X 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 4
3.3 ft. (Im) over a stream for at least 33 ft. (10m)
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
X 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
6-1 H 1 TOTAL Score—potential for providing habitat Add the points in the column above 14
Wetland Rating Form—western Washington(11/04) Page 4 of 8 •
H 2 Does the wetland have the opportunity to provide habitat for many species?
H 2.1 Buffers (see P. 81):
Choose the description that best represents condition of buffer of wefland. 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
III
H. 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian 2
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
•
Wetland Rating Form—western Washington(11/04) Page 5 of 8
H 2.3 Near or adiacent 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...= 1 point
If wetland has 2 priority habitats..............=3 points No habitats...............................=0 points
H 2.4 Wetland Landscape: 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
wetlandswithin 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 24
Wetland Rating Form—western Washington(11/04) Page 6 of 8
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
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.
SC1 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 X
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 11 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
that cover more than 10%of the wetland,then the wetland should be given a dual rating(1/11). Cat. If
The area of Spartina would be rated a Category 11 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.
SC2 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 X
SC3 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
Wetland Rating Form—western Washington(11/04) Page 7 of 8
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?. !f 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.
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=X
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 X 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. lI
C6 lnterdunal Wetlands (see p. 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 X 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 11 NO =go to SC 6.2 Cat. II
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 I 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
Wetland Rating Form—western Washington(11/04) Page 8 of 8
i
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This site map was created by TWC by
coordinating measurements and information
! / from several sources. including the Mason
/ County Assessor Aerial Photo 2005 and
Goog IeEarth aerial images and measurements.
—_ All locations are approximate.
FIGURE 2. SITE MAP
Project Name: Van Eck Wetland Delineation
Location: Belfair,WA
Project: TWC08-W44
THE WETLAND CORPS Client: Richard Van Eck
Date: 5/os
c
Please illustrate below the proposed building site in relation to critical areas (slopes, streams,lakes,wetlands,etc.)
existing improvements, as well as property lines. APPLICATIONS SUBMITTED WITHOUT ADEQUATE
ILUSTRATIONS WILL NOT BE ACCEPTED AND WILL BE RETURNED TO THE APPLICANT.
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Departmental Review
(For Office Use Only)
Planning Department Findings:
Please illustrate below the proposed building site in relation to critical areas (slopes, streams,lakes,wetlands,etc.)
existing improvements, as well as property lines. APPLICATIONS SUBMITTED WITHOUT ADEQUATE
ILUSTRATIONS WILL NOT BE ACCEPTED AND WILL BE RETURNED TO THE APPLICANT.
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Departmental Review
(For Office Use Only)
Planning Department Findings: