HomeMy WebLinkAboutWetland Delineation 04/06 989100031
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WESTECH COMPANY
Environmental Consulting - Site Permitting
WETLAND DELINEATION AND MITIGATION REPORT
ASSESSOR'S PARCEL #989100031
132 OLD FLAGLER ROAD
JEFFERSON COUNTY, WASHINGTON
April 2006
RECEIVED
G. Bradford Shea, Ph.D.
Kim Loafman
JHffRSON COUNTY OeD
Submitted to:
JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street
Port Townsend, Washington 98368
Submitted by:
WESTECH COMPANY
P.O. Box 2876
Port Angeles, Washington 98362
P.O. Box 2876 - Port Angeles, Washington 98362 - Telephone: (360) 565-1333 - Fax: (360) 452-6708
email: bshea@tenforward.com
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WETLAND DELINEATION AND MITIGATION REPORT
ASSESSOR'S PARCEL #989100031
132 OLD FLAGLER ROAD
JEFFERSON COUNTY, WASHINGTON
April 2006
G. Bradford Shea, Ph.D.
Kim Loafman
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Submitted to:
JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street
Port Townsend, Washington 98368
Submitted by:
WESTECH COMPANY
P.O. Box 2876
Port Angeles, Washington 98362
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RECEIVED
CONTENTS
JHftR~ON LOUNlY oeD
PAGE NO.
CHAPTER/SECTION
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
INTRODUCTION 1
METHODS 5
WETLAND DELINEATION RESULTS 7
3.1 Existing Conditions 7
3.2 Description of Wetlands 10
3.3 Land Uses and Habitat Values 11
3.4 Wetland Types and Buffers 11
MITIGATION PLAN 13
4.1 Regulatory Setting 13
4.2 Project Impacts 13
4.3 Plan Components 14
4.4 Detailed Mitigation Measures 14
4.5 Implementation and Timing 15
4.6 Mitigation Monitoring 16
4.7 Contingency Plan 17
PLANTING PLAN 18
CONCLUSIONS AND RECOMMENDATIONS 21
6.1 Conclusions 21
6.2 Recommendations 21
REFERENCES 22
CERTIFICATION 24
TABLES
Table 1. Upland and Wetland Vegetation 9
Table 2. Site Soils . 12
Table 3. List of Native Plants for Wetland Mitigation and Enhancement 20
FIGURES
Figure 1. Location Map 2
Figure 2. Vicinity Map 3
Figure 3. Parcel Map 4
Figure 4. Wetland Delineation Map 8
Figure 5. Planting Areas Map 19
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CONTENTS
CHAPTER/SECTION
PAGE NO.
APPENDICES
Appendix A - Site Photographs
Appendix B - Wetland Map and Data Forms
A-1
B-1
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RJECE IVED
1.0 INTRODUCTION
JfHtRSON LOt/NIT oeD
The property described as Assessor's Parcel #989100031, located in Jefferson County,
Washington is a 1.6 acre parcel of land owned by Harold Brown. The property (Site) is
located at 132 South Old Flagler Road in Port Hadlock, Jefferson County, Washington. It
lies in the southeast quarter of Section 1 of Township 29 North, Range 1 West,
Willamette Meridian (W.M) (Figures 1, 2 and 3).
Westech Company surveyed the Site for critical areas. A single wetland was found in the
southwestern corner of the property. The landowner, Harold Brown, contracted with
Westech to delineate this wetland, mark the buffer zone, and determine the wetland type.
The owner wishes to define placement of a home-site which can be permitted under
Jefferson County regulations for a single-family residence and on-site septic system.
Chapter 3.0 of this report contains results of the delineation.
The proposed home-site is within the forested eastern portion of the property. Access to
the building site would be via extension of an existing unpaved road traversing through
the buffer zone. A Mitigation Plan has been prepared to offset impacts which may result
from further construction necessary for improvement of the access road into the property.
That Mitigation Plan and associated Planting Plan are described in Chapters 4.0 and 5.0
of this report.
Surveying has been recently conducted and property boundary lines marked with pink
and white flagging. Flagging was readily evident in the field. Thteeperc tesfpitshave
been dug in the forested upland area on the east side of the parcel. County Assessor's
parcel maps, aerial photographs, and U.S. Geological Survey maps were provided by the
Jefferson County website and were utilized as base maps for wetland mapping.
Initial field investigation of the wetland was conducted by Dr. G. Bradford Shea with
assistance by Mrs. Kim Loafman, Mr. James McDougall, and Mr. Justin Rondeau on
March 31, 2006. The wetland buffer was marked in the field on April 19, 2006 and
additional research regarding mitigation on intrusion into the wetland buffer area to be
potentially impacted was also collected at this time by Mrs. Loafman and Mr. McDougall.
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R_ECE I VElD
2.0 METHODS
JffffRSOiU COUNTY OCU
Wetlands were delineated in the field based on field methods recommended in the
Washinaton State Wetlands Identification and Delineation Manual (DOE 1997). Wetland
rating was accomplished according to the Guidelines of the Washinaton State Wetlands
Ratina System (Western Washinaton) (DOE 1993). Methods were essentially those
recommended by the U.S. Army Corps of Engineers for Routine On-Site Field Method of
Delineation of Wetlands (ACOE 1989). Guidelines and requirements of the Jefferson
County Critical Areas Code were applied as applicable (Unified Development Code,
Section 3, Land Use Districts 2001).
Wetland plants were primarily identified in the field, with subsequent collection and keying
when necessary. Plants were identified using the following sources:
Cooke 1997
Guard 1995
Pojar and MacKinnon 1994
Hitchcock and Cronquist 1973
Lyons 1997
Taylor 1995
Keying of plants using magnifying lenses and dissecting microscope was used as
necessary. Determination of wetland indicator status utilized regional keys published by
U.S. Fish and Wildlife Service (USFWS 1988).
Soils were determined through field examination. Soils were dug or augured to depths of
up to 18 inches using a wetland shovel, a 24" soil probe and a standard augur. Soil
consistency was determined by feeling for grain size and texture. Soil moisture was
determined at that time. In the event of saturated conditions in the hole, depth to
standing water was noted. Soil color was determined through comparison of field
samples with standard Munsell Color Charts (Munsell 1994). Soil was also examined for
presence of mottles, gley, and other indicators of anaerobic soil oxidation.
Hydrologic conditions were determined through examination of topographic relief and
drainage patterns. Soil moistness was determined by hand as indicated above and in the
event of standing water; depth to standing water was noted.
Initial field surveys were carried out by Dr. Shea, Mrs. Loafman, Mr. McDougall, and Mr.
Rondeau on March 31, 2006, with a follow-up field visit on April 19, 2006. These surveys
included identification of plants, wetland habitats, soils, and hydrology.
Wetlands were determined based on the Routine On-Site Field Method used by
Washington Department of Ecology and the U.S. Army Corps of Engineers. Wetlands
were determined by a combination of vegetation, soil, and hydrology indicators. Specific
transect and quadrat points were sampled along apparent wetland edges. Various points
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were sampled for vegetation, soil, and hydrology in order to determine wetland
boundaries. Appendix B contains wetland maps and data forms for one typical sample
point from each of the delineated wetlands.
Wetland boundaries in forested areas were indicated by the use of pink "Wetland
Delineation Boundary" flagging tape attached to trees or shrubs at appropriate points.
Along road edges, the wetland boundaries were marked in the field with the use of 24 and
48 inch wooden stakes tied with the same flagging. All boundaries were staked and/or
flagged every 20-25 feet. Wetland buffer zones were determined based on field
measurements and regulatory requirements, and were staked in the field and marked
with orange and black striped flagging every 20-30 feet.
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RECE IVJED
3.0 WETLAND DELINEATION RESULTS
3.1 Existing Conditions
JHffRSON COUNTY OeD
Jefferson County mapping shows that a large wetland covering an area over 1.0 mile long
runs south of the Site from Oak Bay north to Port Townsend Bay. Mapping also shows
the wetland as covering the western two-thirds of the property located at 132 South Old
Flagler Road. Westech Company's field investigation found that the location of the
wetland differed from that of the Jefferson County mapping (see Appendix B). The
wetland was found to occur on the southwestern corner of the Site as shown in Figure 4.
This wetland can be categorized as a Category II wetland according to the DOE
classification system. This rating is based on the water quality, hydrologic, and habitat
functions of the wetland. It isa depressional type wetland located at the base of a low hill.
The eastern side of the property which is forested has an elevation of 62 feet above
mean sea level (msl) and from there the terrain gently slopes down to the wetland along
the paved road on the western edge to an elevation of 38 feet. This wetland does not
have a stream or river running through it on-site which would provide water influx. It
appears that this wetland is maintained by high groundwater in the area. It is ditched
along the road but there is no obvious natural outlet.
Vegetation, soils, and the hydrology of the wetland are described in more detail below.
The results from data collected on these three factors at two locations are shown in
Appendix B. Site photographs can be found in Appendix A.
Veaetation
The Site vegetation transitions from a forested wetland along the paved road on the
western boundary to a forested upland area on the eastern side of the property. Site
vegetation is fairly diverse with over 30 tree, shrub, and plant species (see Table 1 for a
complete listing of plants found at the Site). The forested upland area is dominated by
several native tree species (Douglas fir, grand fir, big-leaf maple, pacific madrone, and
western hemlock). Underneath these mature trees is a dense understory of red
elderberry, red huckleberry, Indian plum, oceanspray, salal and sword fern.
The wetland is also wooded but comprised primarily of red alder, though sapling-sized
western red cedar and Sitka spruce can also found. Interspersed among the trees in the
wetland are areas of salal and sword fern growing on mounds of soil and decomposing
organic matter. Vegetation in the wetland also includes a variety of obligate (OBL) and
facultative (FAC) plants such as skunk cabbage, water parsley, cattail, western coltsfoot,
soft rush, and salmonberry. The upland area is roughly the eastern side of the property,
while the wetland occupies the southwestern corner. A 100 foot buffer area has been
defined adjacent to the wetland boundary as per the wetland rating and County
regu lations.
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RJECEIVJED
TABLE 1. UPLAND AND WETLAND VEGETATION
~JHffASON COUNlY OLD
Common Name
Scientific Name
Indicator *
Wetland
Water parsley
Cattail
Skunk cabbage
Soft rush
Creeping buttercup
Hooker's willow
Western coltsfoot
Stinging nettle
Salmonberry
Swamp gooseberry
Red alder
Western red cedar
Sitka spruce
Common horsetail
Himalayan blackberry
Lady fern
Oenanthe sarmentosa
Typha latfolia
Lysichiton americanum
Juncus effusus
Ranunculus repens
Salix hookeriana
Petasites frigidus
Urtica dioica
Rubus spectabilis
Rives lacustre
Alnus rubra
Thuja plicata
Picea sitchensis
Equisetum arvense
Rubus discolor
Athyrium filix-femina
OBL
OBL
OBL
FACW+
FACW+
FACW-
FACW-
FAC+
FAC+
FAC+
FAC
FAC
FAC
FAC
FAC
FAC
Upland
Red elderberry
Trailing blackberry
Grand fir
Douglas fir
Oregon grape
Bigleaf maple
Salal
Sword fern
Red huckleberry
Western hemlock
Indian plum
Dandelion
Bitter cherry
Cleavers
Western yew
Oceanspray
Pacific madrone
Sambucus taceniosa
Rubus ursinus
Abies grandis
Pseudotsuga menziesii
Mahonia nervosa
Acer macrophyllum
Gaultheria shallon
Polystichum munitum
Vaccinium parvifolium
Tsuga heterophylla
Oemleria cerasiformis
Taraxacum officinale
Prunus emarginata
Galium aparine
Taxus brevifolia
Holodiscus discolor
Arbutus menziesii
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU
FACU-
UPL
UPL
*Indicators: UPL = Upland Plant, FACU = Facultative Upland Plant (more upland than
wetland), FAC = Facultative (borderline wetland plant), FACW = Facultative Wetland
Plant (prefers wetland conditions), OBL = Obligate (only found in wetlands).
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Soils
Soils on the Site are mapped as being of the Alderwood-Sinclair soil series (SCS 1975).
These soils are generally moderately well-drained as they are found on strongly sloping to
steep sites. These soils are gravelly and are underlain by compact glacial till. The
specific soil types mapped by the Soil Conservation Service (SCS) for the Site are:
1) Belfast Silt Loam. Wet Variant (Bk). This nearly level soil is on flood plains. The
upper nine inches of the soil is dominantly very dark brown or very dark greyish-
brown, slightly acid or neutral silt loam. Below this, to a depth of 20 inches, is
dark-grey or dark greyish-brown, slightly acid or neutral silt loam, fine sandy loam,
or loam mottled with strong brown and dark yellowish brown. Gravel content
ranges from two to 25 percent, increasing with depth. This soil is poorly drained.
Permeability is moderately slow. The soil holds 10-12 inches of water available for
plants. A seasonal water table is often found at a depth of 0.5-1.0 feet.
2) Cathcart Gravellv Silt Loam (CIC), 0 to 15 percent slopes. This nearly level to
rolling soil is on glaciated uplands. Most slopes range from 5-10 percent. This soil
is well drained. Permeability is moderate. Roots penetrate to the bedrock. This
soil holds 3-6 inches of water available for plants. Runoff is slow to medium, and
the hazard of water erosion is slight to moderate.
The soil tests performed in the upland area confirm that these soils fall in the Cathcart
gravelly silt loam association. Field investigation revealed, however, that the actual soils
in thewetland areaaHhe Site donotmatch the type mapped. Soil samplesinthe wetland
area were dominated by muck mixed with varying amounts of clay. These wetland soils
were dark brown to black. Soils were also saturated, as indicated by the standing water
found in test pits at two inches below the ground's surface (Table 2).
Hvdroloay
Hydrology of the Site is that of a low-lying depressional wetland. This wetland is not
isolated as the wetland continues on to the property to the south (Assessor's Parcel #
901121001). The wetland is fed by precipitation and the high groundwater of the area.
Inflow is non-existent due to the absence of a significant size stream passing through the
wetland. There does not appear to be any natural outflow channel, based on a search for
potential culverts along Old Flagler Road.
3.2 Description of Wetlands
There is a single Category II wetland on-site which occupies the southwestern corner of
the parcel. The western edge of the wetland runs from the southwest property corner
north along South Old Flagler Road and ends at its closest point approximately 18 feet
south of the center of the gravel access road. This wetland extends to the east,
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remaining on the south side of the access road. This is a forested wetland with a canopy
cover of primarily of red alder, a heavy understory of shrubs predominately of
salmonberry and an herbaceous layer comprised of skunk cabbage, water parsley, and
soft rush. Wetland soils were saturated mucky clay. Topography and the lack of
drainage in this wetland has resulted in saturated surface soils. Hydrology is such that
there are pools of standing water throughout the area.
3.3 Land Uses and Habitat Values
The Site is currently an undeveloped property zoned for residential development. The
Site contains a forested wetland and a forested upland area. Both contain a diversity of
plant species (Table 1). These areas, combined with the rural nature of the surrounding
neighborhood appear to provide reasonably good habitat for amphibians (both terrestrial
and pond-breeders), reptiles, small mammals, and birds. Hummingbirds were seen
visiting flowering shrubs such as salmonberry in the wetland. Larger mammals including
carnivores such as coyote likely use the Site as evidenced by the scat found on the
access road cleared of vegetation that leads into the forested area of the property.
Skeletal remains of a black-tailed deer were also found.
3.4 Wetland Types and Buffers
The wetland on the Site was rated according to Washington Department of Ecology
guidelines (DOE 2004) and qualifies as a Category II wetland (see Appendix B). The
wetland size and location is shown in Figure 4. The wetland is above the regulatory
threshold in size and would therefore be considered a regulatory wetland according to
Section 3.6.9 of the Jefferson County Code. A 100 foot buffer is required for
development of a single-family residence. Black and orange striped flagging indicating
that size buffer zone has been placed along the on-site borders of this Class II wetland.
The northernmost on-site buffer flag can be seen by walking 180 feet up the access road
to where the buffer line crosses the road. The buffer flags have been tied to and hung
from trees, and each is visible from the next.
Beginning in the northwest corner of the property, an existing access road passes through
a section of the buffer zone. The first section of the road has been culverted and gravel
has been laid down. The remaining section has only been cleared of vegetation and is
currently not suitable for vehicles. This road is to become the driveway accessing the
building site in the upland eastern section of the parcel. The potential impacts on the
wetland and buffer zone of the construction of the residence and future work to be done
on the access road will be discussed in Chapter 4.0 where mitigation measures to offset
the effects of the project will also be highlighted.
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TABLE 2. SITE SOILS
Location/Depth ~ Color Value/Chroma
Plot # VSH-1
Wetland
0-6" Muck Black 2/1 (10YR)
6-12" Muck with clay Black 2/1 (10YR)
12"+ Muck with clay Dark brown 3/2 (10YR)
Plot # VHS-2
Upland
0-6" Silty sandy loam Dark brown 3/3 (10YR)
6-12" Silty sand with cobble Brown 3/6 (1 OYR)
12"+ Sandy silt loam Light brown 4/6 (10YR)
RECE IVED
JEffERSON COUNTY OLO
*Value/Chroma readings are from comparison of field samples with Munsell Soil Color
Charts.
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RECEKVlP~[)
4.0 MITIGATION PLAN
4.1
Regulatory Setting
JEFfERSON COUNW DCO
This Mitigation Plan is intended to support an application for a permit for a single-family
residence and drainfield at 132 South Old Flagler Road under Jefferson County's Critical
Area Code. The Plan is intended to meet the mitigation criteria for a variance to the
Jefferson County Unified Development Code as specified in Section 3.6.9 (Jefferson
County 2001).
4.2 Project Impacts
The property owner has proposed that the home-site be located on the eastern side of
the property within the upland forest. There appears to be adequate space at this
location for a home-site. The only on-site access for this location, however, would require
a driveway to pass through the wetland buffer.
Jefferson County has mapped the property such that the existing driveway crosses
through a portion of the wetland and the buffer zone. Ground-truthing of the field
conditions indicate, however, that the existing access road does not go through the
wetland and comes no closer than approximately 18 feet to the edge of the wetland. The
access road does, however, pass through a portion of the buffer zone north of the
wetland.
The project involves increasing the length of the existing driveway to extend from the
northwestern corner of the property to the proposed home-site in the east. The first 123
feet of the existing access road has been graded and gravel has been put down. The
remaining length of the road is currently cleared of vegetation but remains undriveable.
Construction would involve placement of additional fill material (gravel) within
approximately 80 feet of the buffer zone associated with the Category II wetland.
Potential impacts of the proposed project include the following:
1) Potential increases in erosion and sedimentation into the wetland due to
removal of additional buffer zone vegetation and grading for the extension
and improvement of the access road.
2) Additional disturbance to the buffer zone by resurfacing and increasing the
quality of the current graveled portion of the driveway.
3) Potential changes in water quality from silt runoff due to construction of the
proposed home.
These impacts can be offset as described in the sections below which discuss the
mitigation measures necessary to fully offset impacts from placement of the driveway
within the buffer zone.
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4.3 Plan Components
The components of this Mitigation Plan are as follows:
1) Erosion control through project timing, emplacement of control measures,
and revegetation and/or covering of graded areas.
2) Planting of new shrubs and trees to enhance the buffer zone and its value
as habitat.
3) Placement of silt fences and other erosion control measures to prevent silt
and sediment from entering the wetland.
The access road was in place prior to Westech Company's preparation of this Wetland
Delineation Report. Because of this, disturbance to the buffer zone had already occurred.
The focus of this Mitigation Plan is to highlight ways to reduce any further adverse impact
to the wetland or its buffer and to offset impacts which have occurred. A more detailed
description of actual construction and mitigation measures is contained in the following
section.
4.4 Detailed Mitigation Measures
The detailed mitigation measures corresponding to the Plan components listed above are
as follows:
1 a. Perform grading operations on the driveway extension during the dry
season (April 1 to October 15). Graded areas should be covered with non-
eroding materials such as gravel or be re-vegetated within seven days of
construction during the dry season. Completion of gravelling of the access
driveway in and near the buffer zone should be prior to November 1 or else
it should be re-vegetated or covered with straw and/or jute netting to
stabilize these graded areas during the wet season.
1 b. Install all erosion control measures prior to beginning grading or other
ground disturbing construction activities. Silt fences should be placed
between the access driveway and the buffer/wetland. Silt fences should be
placed on the downhill edge of construction zones. Straw bales, jute
netting, or other appropriate materials should be used to stabilize sloped
areas following grading.
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1c. Two culverts shall be placed under the proposed driveway extension. A
small seep occurs along the northern edge of the property, which drains into
the wetland. Although the amount of water coming from the seep is not
significant, if it is not allowed to flow naturally, the proposed road may
provide a barrier for the water and accumulation may occur. Through
emplacement of culverts, natural drainage from the upland to the wetland
will be maintained and possible road failure will be avoided. The culverts
should match those recommended by Jefferson County (12 inch culverts
should be adequate).
1d. The driveway width should be no greater than 12 feet, plus necessary
sideslopes (sideslopes not to exceed a 2.0 foot footprint each). Total
footprint of the driveway where sideslopes are necessary should thus be no
more than 16 feet. Areas where no sideslope is necessary should have a
footprint of 12 feet or less. In either case, the footprint should be staked in
the field prior to construction and equipment operators should be instructed
not to deposit materials or to operate machinery outside of this footprint
within the buffer zone. The height of fill should be less than three feet
above the current grade. Sideslopes should conform to standard
engineering practices and Jefferson County Code requirements.
2a. New shrubs and trees will be planted within the buffer zone as per the
planting plan described in Chapter 5.0.
2b. Planting success will be monitored and will conform to performance
standards as described in Section 4.6. If performance standards are not
met, additional plantings or other remedial actions will be taken to meet the
standards.
3a. Silt fencing will be placed downslope of the construction site, and excessive
clearing of the area around the home-site should be avoided to the extent
possible. The vegetation that currently occurs between the proposed home-
site and the wetland will also help to reduce the risk of silt pollution.
3b. Erosion control measures discussed above should be implemented as
necessary.
4.5 Implementation and Timing
Construction of the driveway extension and building of the home should be conducted
between the period of April 1 through October 15, if feasible. in order to avoid carrying out
ground disturbing activities during the rainy season (for minimization of erosion). Any
construction work during the rainy season should have all erosion control measures in
place prior to beginning work. Additional erosion control measures as necessary may be
incorporated to prevent erosion of soils and sediments into the wetland.
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New plantings to be established in the buffer zone should be carried out during early fall if
possible (September-October) to avoid the necessity of supplemental watering.
Plantings can be placed during the winter or early spring if necessary. If plantings occur
during summer months, supplemental watering with a drip irrigation system or equivalent
method may be necessary.
4.6 Mitigation Monitoring
Monitoring success of erosion control measures will be carried out daily during the
construction period. Any evidence of significant erosion or sedimentation entering the
buffer zone or wetland will result in immediate action to block erosion and sediments.
Such siltation can best be blocked by additional silt fences, straw bales, or temporary
berms.
The two recommended culverts should be maintained annually to ensure that water flows
freely from north to south across the property. This may require periodic removal of
leaves, brush, or other material from the culverts. Maintenance of the driveway should be
petiormed as needed. Maintenance gravels should be compacted to limit erosion into the
wetland.
Monitoring success of new plants will be carried out according to the following schedule:
1) Following construction, plant new plantings and check soil conditions.
Holes should be of appropriate size, generally 2-3tirnes the size of the
container, filled with topsoil. New plantings should be adequately watered
immediately upon placement in the ground.
2) Prepare an initial monitoring report at the end of the first growing season
following plantings (within one year of the completion of construction). This
report should address the success of the plantings. Any plant mortality
should be noted and corrected if plant survival falls below 90 percent during
the first year and below 85 percent during successive years.
3) Prepare a follow-up monitoring report at the end of the second full year after
construction and restoration. Note any corrective actions which are
necessary, including additional supplemental planting to compensate for
plant mortality and the apparent reasons for such mortality.
All reports should be submitted to Jefferson County.
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4.7 Contingency Plan
A Contingency Plan should be prepared in the event that the mitigation measures appear
to be unsuccessful, particularly in terms of erosion and sediment control. The Plan should
also address any significant lack of success with new plantings, particularly failure to meet
the performance standards of 90 percent survival during the first year and 85 percent
survival during the second and subsequent years. The Contingency Plan should include
actions which will be taken to correct any defects and accomplish the intended purposes
of the Project.
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RECERVED
5.0 PLANTING PLAN
Revegetation is to occur along both sides of the access roa~[iJifb)Q~ OOH~~6~rtion
which passes through the buffer zone. The driveway itself and sideslopes will be made of
compacted fill material and will thus not be suitable for revegetation. The existing
forested upland, of which the buffer zone is comprised, appears to be very healthy.
Revegetation and planting to mitigate for improvements to the existing drive and filling of
the existing roadbed will not be excessive in an effort to avoid impacting the already
healthy forest ecosystem. Accordingly, only shrubs and small trees which currently occur
on the property will be planted. Planting areas will be adjacent to the driveway, thereby
making trees poor choices for planting due to the likelihood of future road maintenance
issues. Planting areas are shown on Figure 5.
The number of small trees and shrubs planted should correlate directly with the amount of
vegetation removed, destroyed, or harmed during the process of road construction,
grading, and culvert installation as per Table 3. One-gallon pots of salal, trailing
blackberry, and sword fern with four foot centers, and three-gallon pots of salmonberry,
oceanspray, and red elderberry with eight foot centers should be planted near the base of
the sideslope, approximately ten feet from the road. Placement of these 80 plants should
be staggered so that they are offset from one another to provide growing room. By
alternating them in this semi-random fashion, it will give them a more natural appearing
configuration.
We recommend that a landscaping firm, arborist, or registered nursery person assist the
landowner with the plantings in the buffer zone. Monitoring should be performed by use of
these persons or a qualified ~biologist.
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RECE I\TED
TABLE 3. LIST OF NATIVE PLANTS FOR WETLAND MITIGA~~nflOUNTY OeD
ENHANCEMENT
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RECEI\llf~D
6.0 CONCLUSIONS AND RECOMMENDA liONS
6.1
Conclusions
JHHRSON COUNn' oeo
The wetland on the property is classified as a Category II wetland requiring a 100 foot
buffer zone. The landowner proposes to build a home in the forested upland area of the
property. Without an easement from an off-site owner, this eastern portion of the Site
cannot be developed without access through the buffer zone. Prior to this Wetland
Delineation and Mitigation Plan, an access road existed on-site. Improvement of this
driveway within the buffer zone, in conformance to the requirements of Chapters 4.0 and
5.0 of this report, will result in an adequately mitigated disturbance to assure no significant
net impact on the wetland.
)
Mitigation measures as outlined above have been formulated to offset impacts to the
buffer zone. These include installing culverts under the road bed to maintain natural
drainage flow and prevent road failure, and planting additional vegetation in certain areas
of the buffer zone. Additionally, erosion control measures are to be carried out to prevent
sedimentation in the wetland.
6.2 Recommendations
Figure 4 shows the mapped location of the regulatory wetland found on the Site. The
recommended 100 foot buffer zone which has been marked in the field is also shown on
Figure 4. No structures, grading, excavating, filling, draining or other activities which may
adversely affect the wetland may be carried but in the wetlandb(Tnthe buffer zones as
per Section 3.6.9 of the Unified Development Code. The proposed project is to improve
the existing road through the buffer zone so as to access the eastern portion of the
property where a future home-site is to be located.
Westech Company recommends that a silt fence be placed between the road areas to be
graded and the wetland area prior to initiating construction. Hay bales, jute netting, and
other erosion control devices should be used as necessary for the duration of
construction, grading, and culvert placement to keep silt and sediment out of the wetland.
Following disturbance to the buffer zone, it should immediately be revegetated according
to the planting plan outlined in Chapter 5.0
Enhancement to the current access road and further construction of the extension to it, if
permitted by Jefferson County, should be carried out as per Chapter 4.0 of this report
which details provisions for its construction, revegetation, and maintenance.
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RECEIVED
7.0 REFERENCES
Cooke, S.S. 1997. A Field Guide to the Common Wetland Pla~ Den
Washinaton and Northwestern Oreaon. Seattle Audubon Society. Seattle,
Washington.
Guard, J. 1995. Wetland Plants of Washinaton and Oreaon. Lone Pine Publishing.
Renton, Washington.
Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of
Washington Press. Seattle, Washington.
Jefferson County. 2006. Online Map Database. Accessed March/April 2006.
http/lmaps.co.jefferson.wa. uslWebsite/parcels/viewer.htm Jefferson County,
Washington.
Jefferson County. 2001. Jefferson Countv Unified Development Code. Section 3, Land
Use Districts, Subsection 3.6 - Wetlands. Department of Community
Development. Port Townsend, Washington.
Lyons, C.P. 1997. Wildflowers of Washinaton. Lone Pine Publishing. Renton,
Washington.
Munsell Color. 1994. Munsell Soil Color Charts. Gretag Macbeth. New Windsor, New
York.
Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine
Publishing Company. Redmond, Washington.
Taylor, R. 1995. Northwest Weeds. Mountain Press Publishing Company. Missoula
Montana.
U.S. Army Corps of Engineers (ACOE). 1989. Federal Manual for Identifvina and
Delineatina Jurisdictional Wetlands. U.S. Government Printing Office.
Washington, D.C.
U.S. Fish and Wildlife Service (USFWS). 1988. National List of Species that Occur in
Wetlands: Reaion 9 (and Supplement). Biological Report 88(26.9). Portland,
Oregon.
U.S. Geological Survey (USGS). 1953. Quadrangle Map of Nordland, Washington.
1 :24,000 Scale. Published 1953, Photorevised 1973. Boulder, Colorado.
U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson Countv Area.
Washinaton. U.S. Department of Agriculture. Washington, D.C.
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Washington Department of Ecology (WDOE). 1997. Washinaton State Wetlands
Identification and Delineation Manual. Publication #96-94. Olympia, Washington.
Washington Department of Ecology (WDOE). 1993. Washinaton State Wetlands Rating
System: Western Washinaton. Second Edition. Publication # 93-74. Olympia,
Washington.
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RJECE I\rJED
8.0 CERTIFICATION
JHffRSON caurHY OeD
I, the undersigned, certify that the information contained in this Wetland Delineation and
Mitigation Report for the property located on South Old Flagler Road, Assessor's Parcel
Number 989100031 in Jefferson County, Washington is true and correct to the best of my
knowledge and professional judgment. The project has been performed by myself and
other staff and associates of Westech Company.
Dr. G. Bradford Shea, Principal Scientist Date
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RJE(~EKV1ED
JHffRSON COUNTY oeo
APPENDIX A
SITE PHOTOGRAPHS
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1) Access Road facing east.
2) Cleared road bed facing east.
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3) Category II wetland facing east.
4) Category II wetland facing east.
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5) Proposed building site facing south.
6) Proposed building site.
WW9540FWMP,APPAl043006/xmk A-4
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~ ".\8: i /: ' So '~._'! @Iill i 8,~ _,~~ II
, ,- "~ _~_"'" I Sl I ',\ "'. ,
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APPENDIX B
WETLAND MAP AND DATA FORMS
WW9540FWMP.APPB/043006/xmk B-1
RECE IVE]O
JHHRSON COllNTY Den
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DATA FORM 1 Routine Wetland Determination (WA State Wetland Delineation Manual or
1987 Corps Wetland Delineation Manual)
Projectl Site:
Old Flagler Road
Date: March 31, 2006
pplicant/owner: Harold Brown County: Jefferson
State: Washington
Mr. G. Bradford Shea; Mrs. Kim Loafman; SIT IR: 1j29Nj1 W
Mr. James McDou all' and Mr. Justin Rondeau
o Normal Circumstances exist on the site? II no mmunity 10: Wetland
s the site significantly disturbed (a typical situation)? yes 1....11 ransect 10:
s the area a potential Problem Area? yes ~ Plot 10: VSH-1
GETATION
ydrophytic vegetation present? E no
tionale for decision/Remarks: Wetland hydrology and vegetation present.
heck all that apply & explain below:
tream, Lake or gage data: _ ther:
erial hoto ra hs: Other:
etland Hydrology present? II no
ationale for decision/Remarks: Hydrology matches that of a wetland.
Stratum
H-35%
8-20%
Red elderberry
(Sambucus racemosa)
railing blackberry
(Rubus ursinus
YDROPHYTIC VEGETATION INDICATORS:
8-10%
H-5%
Vo of dominants OBL FACW 8t FAC: 85%
heck all indicators that apply & explain below:
egional knowledge of plant communities _X_
hysiological or reproductive adaptations
ech nica I Literature _X_
s it the growing season? [~no
Based on: visual confirmation of plants growing
epth of inundation:
Depth to free water in pit:
Depth to saturated soil:
inches
_2_inches
inches
Indicator
Indicator
Dominant Plant Species Stratum
OBL
FACW-
8-15%
OBL
FAC+
C-10%
FAC
FACU
C-5%
FACU
Wetland plant list (Nat'1 or regional) _X_
Morphological adaptations
Wetland Plant Data Base
OTHER_
ater Marks:
Drift Lines: es
xidized Root (live roots)
hannels < 12 in. yes
ater-stained
Leaves:
yes
yes
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SOILS
Map Unit Name Alderwood-Sinclair
Series & Phase)
Taxonomy (Subgroup) _Belfast silt loam (wet variant)_
Drainage Class
D
Field observations confirm
mapped type?
yes
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Profile Description
Matrix color Drawing of soil
Depth Horizon (Munsell Mottle colors Mottle abundance Texture, concretions, profile
(inches) moist) (Munsell moist) size & contrast structure, etc. (match description)
0-6 A Black I I Muck
2/1 (10YR) 0-6 "
Black ~ ~
6-12 B 2/1 (10 YR)
I 6-12" I Muck
with
12+ C Dark Brown ""'- Clay
3/2 (10YR) t'ltt.
I 12-18" I Muck
with
........ ~ Even
More
Clay
Hydric Soil Indicators: (check all that apply)
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer of Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
_X_ Aquic Moisture Regime _X_ Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
_X_ Gleved or Low-Chroma Colors Other (explain in remarks)
Hydric soils present? liY0iin
~ no
Rationale for decision/Remarks: Soil has very low drainage qualities.
Wetland Determination (circle)
Hydrophytic vegetation present? I no
Hydric soils present? Is the sampling point I\h<!W<!
no ~~ no
Wetland hydrology present? no within a wetland?
Rationale/Remarks: Drainage, soils, and vegetation are indicative of a wetland.
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DATA FORM 1 Routine Wetland Determination (WA State Wetland Delineation Manual or
1987 Corps Wetland Delineation Manual)
Projectl Site: Old Flagler Road Date: March 31, 2006
Applicant/owner: Harold Brown County: Jefferson
Investigator(s): Mr. G. Bradford Shea; Mrs. Kim Loafman; State: Washington
Mr. James McDougall; and Mr. Justin Rondeau SIT I R: 1/29N/1 W
Do Normal Circumstances exist on the site? ,. no ~ommunity 10: Upland
s the site significantly disturbed (a typical situation)? yes I Irransect 10:
s the area a potential Problem Area? yes Plot 10: VSH-2
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
Grand fir C-15% FACU 8alal 8-15% FACU
Abies arandis) Gaultheria shallon)
Douglas fir C-15% FACU 8word fern 8-15% FACU
Pseudotsuga menziesil) Polystichum munitum)
Pacific madrone C-5% UPL Red huckleberry 8-5% FACU
Arbutus menziesil) Vaccinium parvifolium)
Oregon grape H-15% FACU Western yew C-5% F ACU-
(Mahonia nervosa) (Taxus brevifolia)
Bigleaf maple C-5% FACU Oceanspray 8-5% UPL
Acer macrophyllum) (Ho/odiscus discolor)
HYDROPHYTIC VEGETATION INDICATORS:
~/oof dominants OBL,FACW,a.FAC:O%
~heck all indicators that apply & explain below:
Regional knowledge of plant communities _X_ Wetland plant list (Nat'1 or regional) _X_ OTHER_
Physiological or reproductive adaptations Morphological adaptations -
Irechnical Literature _X_ Wetland Plant Data Base -
~ydrophytic vegetation present? yes 111
Rationale for decision/Remarks: No observed wetland plants at sample point.
IHYDROLOGY
s it the growing season? I~"" Water Marks: II Sediment Deposits: yes II
...~ no yes . v
!lased on: field observations and time of year Drift Lines: . yes I~ Drainage Patterns: yes II
JiJ
Ioxidized Root (live roots) II Local Soil Survey: Eno
Depth of inundation: inches ~hannels < 12 in. yes
Depth to free water in pit: inches Water-stained
Depth to saturated soil: inches FAC Neutral: yes
eaves: yes
Check all that apply & explain below:
~tream, Lake or gage data: _ Other:
Aerial photoClraphs: Other:
Wetland Hydrology present? yes Ii
Rationale for decision/Remarks: Sample point within an upland area.
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OILS
Map Unit Name Alderwood-Sinclair
Series & Phase)
axonomy (Subgroup) _Cathcart gravelly silt loam_
Drainage Class B
Field observations confirm
mapped type?
.
no
Profile Description
Matrix color Drawing of soil
Depth Horizon (Munsell Mottle colors Mottle abundance Texture, concretions, profile
(inches) moist) (Munsell moist) size & contrast structure, etc. (match description)
Dark Brown Silty
0-6 A 3/3 (lOYR) I I Sandy
0-6 "
~ Loam
Brown :ll.
6-12 B 3/6 (lOYR) Silty
I 6-12" I Sand
12+ C Light Brown " with
4/6 (lOYR) ":a.. Cobbly
Gravel
I 12-18 " I Sandy
.......... 'a. Silt
Loam
.
Hydric Soil Indicators: (check all that apply)
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer of Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
_X_ Gleyed or Low-Chroma Colors Other (explain in remarks)
Hydric soils present? yes II
Rationale for decision/Remarks: Soil color, texture, and moisture regime are indicative of upland soils.
Wetland Determination (circle)
Hydrophytic vegetation present? iiiW&9N
yes lQ II
Hydric soils present? yes [S Is the sampling point yes
Wetland hydrology present? '~t!fJ!fl( within a wetland?
yes ~
Rationale/Remarks: Sample point was taken in an upland area.
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WETLAND RATING FORM - WESTERN WASHINGTON
Name of wetland (if known): 132 :'$ri'..l'.H1 Old r::lajl(lfe f20ad
Location: SEC: --L. TWNSHP:::rtRNGE: ti (attach map with outline of wetland to rating form)
Person(s) Rating Wetland: .73racl31~ CL. . Affiliation: /;Jgs/cch f!o. Date of site visit: '-//11bMtO
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland
1_ ni m_ IV_
Category I = Score >=70
Category n = Score 51-69
Category ill = Score 30-50
Category IV = Score < 30
Score for Water Quality Functions
Score for Hydrologic Functions
Score for Habitat Functions
TOTAL score for functions
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II
2S
52-
Category based on SPECIAL CHARACTERISTICS of wetland
1_ 11_ Does not Apply.1:::-
Final Category (choose the "highest" eategory from above) -1::rr=------1
Check the appropriate type and class of wetland being rated.
Estuarine
Natural Herita e Wetland
Bo
Mature Forest
Old Growth Forest
Coastal La oon
Interdunal
None of the above
Wetland Rating Form - western Washington
August 2004
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Does th~ weHalJ.?~~illgr~t~~llle~ta,nyof~h~.criterill~~low?
.If"YP\l.~~~r.xPStP?J1}'.pr~e,~u(:~ti()~s.lJel()Vly~nl\Villll,eedto .protect the'vV~tland
~ccording to ~el'egUl~ti()nsreg&'ding thespeci,aI chWac:t~$tic:s f01.1l1d in the wetlan,d.
':"" .', '-- ::..;, ;-;, ". -, -'.-: ,-_-,- ",' <:-'_:_' :,',,,,.__..' -.::-._,;,_' :_' <_. :'--,.:':- _~,'-' "_' - _-co ",', ";;,'-d'_ '.: '-':,";"_ _,' . __,,:__, ~"" _ o.', . ,:::.:,- ,'C-:'---" , .:' - _,-'..-:':. _':i ':- ,-:'_.,_, : :".:. :: < " ";, - - "_:,':
'SP.l.1fd.stbe.w?n41jd'~~e~:iI~l:i!hz'eiiWd'li$,.'CiMp~ii9i.r9r:#nJ1€~i{efallJ1...lisi~d"
...TJireqt~neiloFEil(ian.ge.,.eClpJ,iiif6r(Jrf{7Ifa1sp~tresrr!Espi!Cies/?-.. '
. f?itl1~pl1tp?ses()f:tl1l~~r~W~sYst~,'''dQCtiiri~ntednme~ the wetlan,d is on the
a f9 .riatestate or federaldatii1:lase.
.$gt:'/f~~th~'1feH~rz~9~~1jj!~(:~~~~tedas habli(lt for any Suite listed Threatened or
En4an~e~~~l!f~n.tor;(l.1ii17als[J~cres? ....
. F:Q~~~P1.1IJ>?~~sgf.~~t~Wg!;y~t~m,nd()ctin).ented" ill{(ans the wetland is on the
a ro iiatestate oatabaS'e.. . . . . .
SP3 :bberth~-wJtliniicontain individuals of Priority species listed by the WnFW
for thest'ate?
SP4.j)~es the wet~~n~have a loca/significance in addition to its functions? For
example, the wetland has been identified in the. SllOreline Master, Program.,
the'Critical Arel:lsOrdinance, qr iti a local management planas having
special significance.
~
x:
x
x
To comvlete the next vart of the data sheet vou will need to determine the
Hvdrogeomorvhic Class of the wetland being rated.
The hydro geomorphic classification groups wetlands into 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
2
August 2004
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RECEJrlTED
Classification of V egetated Wetlands for Western Wasbington
Wetland Name: \:'1 ~<)(')I~~ 0 td +1Ct~\o ( K.cod Date: 1-/ ~ lct ~ ;;ZOOCo JEFFERSUN CaUNff DCD
1. Are the water levels in the ",etllll1d llsuallycpntrolledby-tides (i.e. except during floods)?
@ - go to 2 YES -1:li.e wetlaildClass is Tldal :Frit1ge .
If yes, is the sapnityofthe,~aterd,~~p~r,iods of annuallo\V flow~elo", 0.5 ppt (parts per
thousand)? YES -'-Freshw~ternTidaIFJiI1ge NO -Saltwater Ti,dalFringe (Estuarine)
If your wethl1lq cl{n ,be clqssijiM qSP:F'reshw{lter Tidal Fri~~X use the forms jorRil!erine
wetlancjs. ..Ifit is.S~ltWqt~rT}a,alF'ri~ge i~ ..~,. ra.te~as an~~h,ta.rf~e wetland. ",eij~ds that
'Yer~c~1l~~tStct~t.i1:t~~.~~t.~q~e,c8ACl~c1i~,~n~Qftl1~..r,~~gsys.te111...~e~~ll~cl. Salt
W at~r Ti<ia,I..Frmge in tp;~. :EJydrQgeol11ptphi" Glasl:;tfication.... ESfllll.tll1~",~t1an~ .were
~~t~g()riz~dsep.~~ttlY'iI\;th.~e~li~rr~~~~,...AA4tIiis..s~p~~tl()p..is.~~ill~..k~~in..this
tevisign.,. To .p1aintaint~~~ie~cybe~~en e,#po~,the. tenn, "Es~aiin,e~'\\TetI@d is kept.
Ple~e note, how-eyer, tliat the c~acteristicsthat define Category lind II estuarine
wetlands have changed (se~ p. ).
2. Is~ topography within the."'.....~tland flat...apdPreciP... i~tion is only source (>90%) of water to it.
Q:9 - go to 3 YES-'- The wet1aiJ.d 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 ofa body of open water (without any
vegetation on the surface) where at least 20 acres (8 ha) are permanently inundated
.. .Jpo~de4prfl.()()deq);.. .
_At least 30% oftbe open water areaisdeepert:han6.6ft(2m)1
@- 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 type oj wetlands except occasionally in
very small and shallow depressions or behind hummocks ( depressions are usually
~ <3ft diameter and less than 1 Joot deep).
~- 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
n;llJ!ooding.
~- go to 6 YES - The wetland class is Riverine
Wetland Rating Fonn - western Washington
3
August 2004
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RE(:Ii: If \\l1E;[)
6.IS.th. e wetland in a toPOgraPhiC.. depression in which water ponds, or is satur.. ated to. thBmt~M-trU!II~lr\i '''1pr
some time of the year. This means that any outlet, ifpresent, is higher than the interior olY1t~w L U ~ II UlsU
wetland.
@:"'" go to 7 YES - The ",etland class is J)epr~Ssi~nal
7.. ISt.he wetland located in a very flat area with D.?(jbvio~dep!ession. and n?streanl or river
rnn~ingthrO~gh it an~ provicli1ig\Vater. .Tl1ewe!l~d~~etl1stobe main4rinedby high
~6'1W;:~ ~ the ~ihte~~~lrt ~I~:'::t obvious natlIra! ootIet
8. Y()~\\Tetland8ee~.~~e diffifu1tt?cl~s~ify..~()re~am~le,~eep~.a~the base ?fa slope may
gr~~~.ip-to~~verjJJ,~\~09(iRlai11~or~..smcill ~P'~~~~~iry~'~epressi?~t",~.9~(i~s ,a zo~e of
f1()O~g~.?~~it~ ..si?~W' ~gll1e~e~. wefn1dq~~~9t~ri~t4f~0!~evefaJ.ffitIefe~t~tclf()g~omorphic
cl~s~~~~!~il1()~e~~t~an.g.15()~~' ...tT~e ~~.f()Il()~$~ple... tg i(f~~tifY MJ~,~pp.~()p:r~t.~.c1~~s to
us.~.(6rAier~tin~'sY$t.~tpifxouMye...severai!l~~cla~~esrr~sFt.wi,thiny(}~.~~tJ~tld: NOTE:
Ysethi~.t~ble9n1yifthepl~s~tb.at isreqoID1l1eAded ill tl1e~econdc()!l.]rnn represents 10% or more
of tl1et()tal~e~ of tI1.ewetla11d beip.g rated, If the are~ of the second class is less than 10% classify
theWeU'iuidtlsfugtli~.fifsttIass.... .. . ..
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
4
August 2004
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RJ'Q' (c~ lH' ~. .~.. Y1E.'l [.).....,
Ld </JL4 Jl \~/ ,I 1 I
. ,L _~d ! '
n. I..t),().~$t~~8t~il~~~b:~yfm~."~f)te~tiatt~_.il#pNve#,at~rqp~jitY? (see 11;'38)
,,'-'.
D
D 1.1glJM~cte#s#cs()fstlffac~wateft1Qws(~ut bfilie wetland:
~WVfgiS)taepr~f~igf\\liffi?9-Sllff'~ce-\V~tef()UtretCP9~ts. =:l)
'Y~t1~911e!? ~~t~tt~tlyt19mng, otb.igJlly constricted, outlet pomts - 2
Wetlarid fuisanUncofiStriCted sUrface outlet. points = 1
w~ti~dii~'flaiaridl1~~rt~6b\ripusoulietap,d/or o1,ltlet is a,ditch '.Oints = 1
D 1~f'Ut:~.S?i1;~.wch~~be~9-\y~e'.s1#f~~~ is cilily,orgamc, of smells an()Xic
(h~~..d.fu:Jr.o.... .g.. ~nsti1fi4e ottottenyggs).
. IE p()ints = 4
-'6. . .oints = 0
D1.3 ~~~st~~stiC~ pfp~r~~~tentv~~~ta,~()n (eme~~ent,~hrub, and/or foresU:lass):
Wetlagd.~speisis~~t,up.~azed,vegetation :> = 95% of area Cp()ints = y
V{~~~4Jl.aspersistent, 1iIi~~ed, v:.9~~tion > = 1/2 of area pi)mts - 3
V{~g~~has'p;e~~istep.t, ung1"~,ed ve~~tation > = 1/10 of area points = 1
Wetll1ITd.1Iali .ersistt;:nt,Jill. 'azed yeeta.tion <1/10 of area oints = 0
D L4t~aJ:~Ctenstics'.6fseClS0l1a1po~<llilg'.6tiIiurlliaHoI1.
This is the area of the wetlandthcit is ponded for at least 2 months, but dries out
sometime during the year. Do not count/he area that is permanently ponded.
Estimate area as the average condition 5 out of 1 0 yrs.
Area seasonally ponded is > ~ total area of wetland
Are8:'seasonallyporiaed~Is->%tota1a:reaOrwethilid
Area seasonally ponded is < ~ total area of wetland points = 0
NOTE: See text or indicators 0 seasonal and ermanent inundation..
Total for D 1 Add the points in the boxes above
D 2. Does the wetland have the oDDortunitv 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
- Residential, urban areas, golf courses are within 150 ft of wetland
- Wetland is fed by groundwater high in phosphorus or nitrogen
- Other
YES multi lier is 2 0 multi lier is 1
TOTAL - Water Quality Functions Multiply the score from D 1 by D2
Add score to table on . 1
D
D
D
D
D
D
WetIand Rating Fonn - western Washington
5
August 2004
3
l-\;
5
y
\Co
multiplier
16
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RTD ,0 TR' 1T If T 'L'1 ~[1'\
JLi \\~j .a.-djL \\1 !Ld i jJ
D
.";)j)~.99:.~.~;.t,~~w~tl~#fl1#v~.tb~...D~t~ntiaft~'r~dfi~~;n~;~4iJig ..Jid'erosi6ii?
($e~'i46 . .... . .. . 'c' ,.,. .. ...
1!...~]'G~actetis#~sof.sutfaCewa.t~fflows out dfthe wetland
.,*~aa.tJ,4-~snp.sWf~cy-",at~r_o#~~t.. . ..points. =4
'Wr.11llf1<l; ~~".~tp.terI11i~e:ntl~>fl()~~~Rrl:1jghlY c?nstricted, outlet ~oints = 2
"{~~~4~dJ~taitdtmS,If()obVi()~.~ w~U~t . and/or outlet is a small ditcl(pOints ~
W~tlaIl<lh.a.S,lU1\11lcOll$trictedSlUfac~ outletoints = 0
J,)~.~'B~PtP?~~t.c>r~~~4$ifrg.~e.rP~g4s......
%$!i1J;~(~.~!J~.~gf~fztvtjJp~~in~'a~ey:th.ep?ftom.of the outlet
~~~~~~~W~~llie<utface &~
f\1ar~of:Po~~g1i~tWeeri 2 if to~3 ~ from surface points = 5
~~.~e,}lH.~l,lstO.~ft ~< 2 ft,~<>.m~tuface .. points = 3
'Y~tlW1~'is;p~t&HtliaSS,rtl~ll~~l'tessions on the surface that trap water points = 1
M:arks.of OIldiri iess tJ:ian oS ft oints = 0
1) J.3Conml?l.Iti9nofwetlan:d to storage in the watershed
Esti11lCltethe:,;atioofthearea~ful!stt:ea.mbasin contributing suiface water to the
wetland to the area of the wetland itself.
The area of the basin is less than 10 times the area of wetland ~~ =.-0
The area of the basin is 10 to 100 times the area of the wetland pomts = 3
The area of the basin is more than 100 times the area of the wetland points = 0
,Wetlandjs.inthe.FLATS .classasin = the wetland,b.definition oints= 5
Total for D 3 Add the points in the boxes above
D 4. Does the wetland have the opportunity to reduce flooding and erosion?
(see p. 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
- 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 stream that has flooding problems
- Other
YES multi lier is 2 Q multi lier is 1
TOTAL - Hydrologic Functions Multiply the score from D 3 by D 4
Add score to table on p. 1
\ \
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D
5
D
s
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Wetland Rating Form - western Washington
6
August 2004
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R'T~' ~-
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_ .l.LC \\ /'
Tr, ",~'"
'I. \ ( ~G
I '../ ':fJ?
Irl:l>()~s,~I1~f~tt,~dl1~yetJi~~6iehti~rt(). hi:iPtovew;atet'qu~litY? (si!ep: ..51)
R
R 1.r Are%()f$\n:faceg~pres~ionsWithin the :riverine wetland that cantrap
se(1ilfl~tits.q.;€Wfa]ropdpig~-venE..'..
I)t~I~s~i(j~~~oyel"> 314atea of wetlCiOd
I.)~Rfessi911sc,o~~r >1/2 ar~a of wetland
B~[ts~ie~'p~7~~Il~l?llt cover <1/2 areaofwetland
N!:"de.. res$iOhs resent
R 1.2q~~~cte,n~~~r()f W~y~~~!a~~~i1J..thtW~~~d:
:FPft~lPf~~b> ~73tReatea.ottlie\vet1and points = 8
.Foresfor shrUb > 1l3~ea oftnewetlaIid points = 6
tJIl~ClZ~d,~wefgentpl~ts > 2/~area of wetland points = 6
Vngraze4eD1erg~nt pl~ts > 1l3area of wetland points = 3
FQrest,sl:1r1.lb~ tull:lPn ed cmet ent < 1/3 area of wetland oints = 0
Add the pointsin the boxes above
points = 8
points = 4
points = 2
omts ~O
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R 2.Doest~e\Vetl~~d'li~vetheoJlll?~tiii1itvtoiJJJpr()vewatetqu~fity? (seep. 53)
A11swet YES if you know orb6fieve there are pollutants in groundwater or surface
water corrrlng into the wetlartdthat 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.
.........-6razing.inlhewetlandotwitlili:J.l.S0ft
- Untreated stormwater discharges to wetland
- Tilled fields or orchards within 150 feet of wetland
- A stream or culvert discharges into wetland that drains developed areas,
residential areas, farmed fields, roads, or clear-cut logging
- Residential, urban areas, golf courses are within 150 ft of wetland
- The river or stream linked to the wetland has a contributing basin where
human activities have raised levels of sediment, toxic compounds or
nutrients in the river water above standards for water quality
- Other
YES multiplier is 2 NO multiplier is 1
TOTAL - Water Quality Functions Multiply the score from R 1 by R 2
Add score to table on . 1
multiplier
R
Comments
Wetland Rating Form - western Washington
7
August 2004
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;R3.p()~~lh~w~tI~~dI1a-v~J~e'Dotefitlaltt)t~~l1c~floo4ij1g.~nd erosion?
.(s~e.. ...54)
It J.l_~fuu'actefis!i~~6(~t~Y~~MJc~tQt~~~~~~~!1~~.pr,0'i~~s:.. ............. .....
. E:f~f1l~tith~qvetClgf(l-vjifth..6fthe wetlq71df~rp~rzdic,ular to .the direction of the
jlr!wqrid.th~Wia.thofthestreamorriVl~r channel (distance between banks).
c,q'cU;l~.te.t~~r~tio,: (widlh of we#and)/( width of stream).
1!.1:b,.~r~1;ipi~$RI~tl1~ 20 pofuts = 9
Ii'g,.~r~po isqenveen 10-20 poWts = 6
If.We~tig i~ 5~< I 0 . p~ints = 4
l:t~e~~ti? is 1- <5p9i1its = 2
If th~ratio is < I omts = I
R 3'2,C~~afteristi~sofv~getationthat slow down water velocities during floOds:
Treqt large woody debris as "forest or shrub". Choose the points appropriate
for the best description.
Forest or slntthfor >113 area OR Emer~entplants > 2/3 area
FOJestor sh{ubfor > 1/10 ~ea, OR:;Il.1ergent plants> 1/3 area
Ve etation does not meet ahovecriteria
points = 7
p()futs = 4
oints = 0
Add the points in the boxes above
R 4. Does the wetland have the oDDortunitv to reduce flooding and erosion?
(see p. 57)
Answer YES .ifthewetland.is.inal()cation.inthe.watershed..wherelheflood
storage, or reduction in water velocity, it provides helps protect downstream
property and aquatic resources from flooding or excessive andlor erosive flows.
Note which of the following conditions apply.
- There are human structures and activities downstream (roads, buildings,
bridges, farms) that can be damaged by flooding.
- There are natural resources downstream (e.g. salmon redds) that can be
damaged by flooding
- Other
(Answer NO if the major source of water to the wetland is controlled by a reservoir
or the wetland is tidal fringe along the sides of a dike)
YES multiplier is 2 NO multiplier is 1
TOTAL - Hydrologic Functions Multiply the score from R 3 by R 4
Add score to table on p. 1
Comments
Wetland Rating Form - western Washington
8
August 2004
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RiD CJE If '17 'r~ D
Cl j' .;dL '\1 i rd I
'I. l:t)R~s.\t~eW~tl..'... J#tJ.~~y~t~~/~o.t~rl~~I..t. 6!Wprove wat~l'qllafitY'? (~~~p:59)
. .' , , -' . .
L 1.1j\.v~hige WidtholVegefutionaIongthe lilkeshore :
\'.e~~~~i()1\'is~nioie~tli~.311t:<iqt!1TW!([e..'...:~.'..:..c poiiits..~ 6
'\T~~~~tioJli~WQtyW.aJ1~~'(?In)\\j4e~d <33ft pgints = 3
Vegew.1;ion is m.orethan.6ft(2m) wide and <16 ft points = 1
Y~ietittfhJil~je~s ili~6.ftWide"bints= 0
L1.7GhafaGteristicsoftlieWgetiltionin,theW~tlarid: choose the appr6jJi"Fdte
. dr~c~~tiq~th(lt.rfs4~ts'in.thp~i$hestp()in.t~,.land.do.n?t .i~clude..anyhpen. water in
yqur ~sti1Jl{J,teofcQyer(Jg~,}~thiS cqse 'the herbaceous plants can be either the
dOrn.inanifotm (called emergent class) Or as an understory in a shrub or forest
~Qrnra~~ity.
HerQa,ceous.plants cover >90% ofti:te yegetated area points = 6
H~rbacequs pl~ts cover >2/3 of the vegetated area points = 4
II~~baf~ous:plantscover > I 13 ofthe ve~etated area points = 3
Oti:ter v~~etatiO]l.that is.nota,q~ticb,~d in > 2/3 vegetated area points = 3
Othet ye~etation tliat is Iloiaquatic lJed in > 1/3 vegetated area points = I
A uatic bed cover> 2/30ftne veetated area oints = 0
Add the points in the boxes above
L 2. Does the wetland have the ODDOrtunity to improve water quality? (see p. 61)
Answer.'YESifyou:Imow-orbelieve;there.:arepolllltantsmthelakewatei,.or
surface water flowing through the wetland to the lake is polluted. Note which of
the following conditions provide the sources of pollutants.
- Wetland is along the shores of a lake or reservoir that does not meet water
quality standards
- Grazing in the wetland or within 150ft
- Polluted water discharges to wetland along upland edge
- Tilled fields or orchards within 150 feet of wetland
- Residential or urban areas are within 150 ft of wetland
- Parks with grassy areas that are maintained, ballfields, golf courses (all
within 150 ft. of lake shore)
- Power boats with gasoline or diesel engines use the lake
- Other
YES multi lier is 2 NO multi lier is 1
TOTAL - Water Quality Functions Multiply the score from LI by L2
Add score to table on . 1
multiplier
Comments
Wetland Rating Form - western Washington
9
August 2004
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REI1~{.~. ,. iF? Tr \r. '.[:1 or.
. j. '<1,._./ -u..-d lt \\; il -1 !
A.!
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L3..D(jest~!\V~U~'JJ,([h.~Vejh.~Ddfehti~ft~.tedU~~'.slt(j:reIfue..~rosioJi1..(~eep..... 62)
..,
Lj Av~rage~~thAA~C~Cll'a~teiisii~~Qfyeg~ta~()n~oIigtht} b~k:eshote. (do not
incluq.er~qu.atic-b~n):-(thvvse~thl?~highestscoring-llesr:ription-th(ltinatches
co~ditipn.sm.tlt~~:t!aYtd)
> % offriiJ.~~ veg~~tio~ is s~bs or trees at least 33. ft (10m) wide points = 6
> % ()f ftitt~e ye~7ta#~~ltss.hii1~sor1:f~es at lea~t 6ft. (2 ~) wide points = 4
>~~rttiP~~\Te~e~tiQ~}i$'.sJ#4~.~(?r~eesat least 33ft (1 Otn) wideplJ,ints = 4
Fririge veg;ewtiori isatleasf 6ft (2m.)widepoints =2
Ftiri."e,:Ve'}e~tidil is le~sfhari g'lt2h:iWide ()ints = 0
. Record the points from the box above
L 4. Doestbe w~tlaIl4h.a."V~th~()~~?~Ditvtoredllce erosion? (seep. 63)
Are there featutesaioIig$eshoI:e t:l:iat \Villbe impacted if the shoreline erodes?
Note which of the foiloWing c()hdtdons apply.
-There are human structures and activities along the upland edge of the
wetl~d (buil,dings,fields) that can be damaged by erosion.
- There are undisturbed natural resources along the upland edge of the
wetland (e.g. mature forests other wetlands) than can be damaged by
shoreline erosion
- Other
multiplier
YES multiplier is 2 NO multiplier is 1
L TOTAL - Hydrologic Functions Multiply the score from L 3 by L 4
Add score to table on p. 1
Comments
Wetland Rating Form - western Washington
10
August 2004
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1[j) 11'~.'.~ r"l iF1~ r .~. T 1C11.D
1.f\ L~I \\,j "'-L' Jl IV iLd. .
-- - L
,8 1.Do~stbe'w~ti~ijd. IlaVe the n6tentlafto' .iIDpr(jve. waterqlls}ify?' (seep: 64)
'-, ' -.' ::~.- -. . '-: _: ;-:,;',; ,.,' -,- -';',.. . --',. '_,,' - '_, - C'_ _ _ _, _ ", -_, ,- _ - . - . - - _ . - - -': - ;
s~ l.tcMr:a~rsticsof ayel'a~eslope.of\Vet1and:
~loIle}s 1~or1ess -({1]%s7opekiisalliiijivernc{1liJr()pin elevanon!()revery
IOOftnbrizontal distance) ..................................... p()ints = 3
Slo~e 'is t% - f% points = 2
~1()~~i~,2~.- 5% points = 1
Slope is gre~tet than 5% points = 0
s
S 1.2 Tb.esp~2 4lchesbelow the sUIface is clay, organic, or smells anoxic
(hydroge,n slllfi~e or rotten eggs).
'YES=3oints NO= 0 oints
S 1.3Chataderistics Of the vegetation in the wetlafid that trap sediments and
ppUlltants:
Choose the points appropriate for the description that best fits the vegetation in
the VI1etl~~d.fJf!nse ve?:e(ation11lf!ans you have trouble seeing the soil ~urface.
:o~nse, un~azed,herbaceous ve~etation > 90% of the wetland area points = 6
:oense, ungtazed, herbaceous 'V~getation > 1/2 of area points = 3
Dense, woody, vegetation> Y2 of area points = 2
Dense, ungrazed, herbaceous vegetation> 1/4 of area points = 1
Does not meet an of the criteria above for ve etation oints = 0
TotafforSl Add'ihe points in ikeboxes above
S 2. Does the wetland have the opportunity to improve water quality? (seep. 67)
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 150ft
- Untreated stormwater discharges to wetland
- Tilled fields, logging, or orchards within 150 feet of wetland
- Residential, urban areas, or golf courses are within 150 ft upslope of
wetland
- Other
YES multiplier is 2 NO multiplier is 1
TOTAL - Water Quality Functions Multiply the score from SI by S2
Add score to table on . 1
multiplier
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Comments
Wetland Rating Form - western Washington
11
August 2004
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/prt'-1. (l/"; IE iT >>v. T1C. ~". DT-~
II \~,,~.l ",:1 ' ./' d -.~ \ lLd I
S' 3.R~~~;~~clV~t1~~~~)ivfth~~otehtiaf tdr~a,u.e~fIo6tling~n.dstfeamerOsioh1
(s~~..<68
S 3.1!:Cl1at'~bt~ri~ti(;~ofy~getaiioIithatr~dUcethevddcity Of sunace..flows .OUring
~W~..Cho_Q~?lhJ~-1l9cil1t~(JppioPria1e.forthedes.cription thatbestjit
conditions in th~ wetland.
D~#~e, 1lli~llt,H~(t~~~~tation covers >.90% of the area of the wetland.
(ste~ofpl~tssl1Qll~db~ ~ick eIlough (usually> 1I8in), or dense enough, to
r~1J1Bin'~r~6~~pri11&.~~ceflows) p?ints = 6
D91lS~,11l1C~t, ri~tf,ve~~~ti?n > 1/2 area of wetland points = 3
J:>.e1lS~,llll~~U~.1j~~yeg~~l~on > .114 ~ea ... pbints = 1
More tharil/40f wea isgtazed, mowed, tilled or vegetation is
.Ilotri . . d oints = 0
S 3.2 Char~cteristics of slope wetland that holds back small amounts of flood
flows:
The slope wetland has small surface depressions that can retain water over at
least 10% of its area. . ___~~______ point~_:2
____________~_u____n___________u ......- NO oin,ts = 0
Add thepoihts in the boxes above
S 4. Does the wetland have the ollPortunitv to reduce'tlooding and erosion?
(see p. 70)
Is tlie..wetland in alanclscapeposition",here tl1e redu~tion in\Vatervelocit)'it
provides helps protectdownstfearriproperty-aridaquatic resollrces 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
- Other
(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)
YES multi lier is 2 NO multi lier is 1
TOTAL - Hydrologic Functions Multiply the score from S 3 by S 4
Add score to table on p. 1
multiplier
Comments
Wetland Rating Form - western Washington
12
August 2004
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R\ JET . ('" 18 IIV~" l[)il
1 _A "'------' 1- .. \. LL..d
.'. .. .......... ........ '-.--:.'.'.::......'.,-...'.......'.............,...'-".::...'.......>.........'.,...............'. .... '....... .... ... .,'...., .....,......'........<.-,.,..:.'..-,..',..,.'.:'.--.'.....-.:.:..... ... ... .., . --'....'.--;......,..... .,::.:.. . .. .. ... '
H 10]).0. ,e..,..s.,.....t.Jl... e. ,we~a~dliav~th~f)~t~D.tialtoprovide lIabitat for ID.,....a..nys..p.,el:ies?
" '.>- --,' - . - - - -, - ._,' -'-' . - ,- ,-"" - ".',-- ~ - -" - . -' - - - - -, '- . '-'- . - . .
H 1.1 Vegei~#6n s!fUc~e(sei! p.'l2)
.. Checlt1he-wpes o1ve$~ratii:i1fc-Z~sespresenf{iisileJineabYC6wardin)iftheclass
covers "!~reth,Bn 10% of the area of the wetland or ~ acre.
_~quaticbed
/E~e!~~~~plants
/~cru1>/~J#11l:>,(~e~swhere $nIbs have> 30% cover)
./ Fores~g(~eas\.Vlier~trees have >30% c9ver)
~Forest~areashaye 3 out of5 strata (canopy, sub-canopy, shrubs, herbaceous,
tt16ss/ ground-cover)
Add the number of vegetation types that qualify. lfyou have:
4 types or more
3 types
2 types
1 e
l--f
(POin~
points = 2
points = 1
oints = 0
H 1.2. Hvdroperiods (seep. 73)
Check the types of water regimes (hydroperiods) present within the wetland. The
water regime has to cover more than 10% of the wetland or ~ acre to count. (see text
for descriptions of hydroperiods)
~Permanently flooded or inundated
.......vLSeasonallytlooded.of,inundated
-LOccasionally flooded or inundated
~Saturated only
_ 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. 75)
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 ~
List species below if you want to: 5 - 19 species pomts = 1
< 5 species points = 0
4 or more types present
. . 3 types present
2 types present
~t;;}:>
. points =2
point = 1
~
2-
Wetland Rating Form - western Washington
13
August 2004
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1J.. \ "'Ld
-.!E. 'r \~T.".E. D'. --....,
:'~ . \! i ' 1 \,
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H 1.4. Intersoersion ofhabit~ts (see p. 76)
D..ec....i.....d.....e.... .f...r.....o.m....t.h. .e..diagra...m...........s.......b.......e..........l..o..w.........w. h......eth. er in.. te.r....s.......p.....e..r.. .s....io..nb.. etween typ.. .e.s.o. fv. e.geta. tion
(d~scribed ifi H 1.1), orvegetatio. n types and unvegeta.ted areas (can include open
water Or rinidflats) is high~'ID.~diu1l1, low, or none.
None = 0 points
L<?\V=l ppipt
.~....--/
~
Mo,derate = 2 points
,......~.. /
~ /" [riparian braided channels]
W@2::3Points
NOTE: Ifyollha,ve f()l:1fOi1I191'~vegetation types or three vegetation types
a.rid oenwaterth€:lfatihisalwa s"hi ".
H 1.5. SpecialIiabita{Featllres:(se~}J:77)
Check the habitat features thafare present in the wetland. The number of checks is
the number of points you put into the next column.
.... .. \/".... :l.~ge,<i9\YI1~<i,. ~924Y4tPB.s...~~111.Tl.t&~.'\V~gaI1cl(>4jl1..diaIll~terand(). ft .10Ilg).
_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 3.3 ft (1m) over astream for at least 33 ft (10m)
_Stable steep banks of fine material that might be used by beaver or muskrat for
v denning (> 30degree slope) OR signs of recent beaver activity are present
_At least l!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)
i/ 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 scores in the column above
Comments
14
August 2004
Wetland Rating Form - western Washington
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. RECEK\rED
H 2. Does thewetl~Ild have the ()pportunity to provide habitat for many species?
B 2.1 Buffers (seep~~(J)
Choose'the description that best represents condition of buffer of wetland. The highest
scoring criterion that applies to. the vietland is to be used in the rating. See text for
definitionaf "urzdtstflrbed. "
- 1 99. m (j3 Oft)ofrelatively undisturbed vegetated areas,. rocky areas, ..()r ()pen water
.>95roof'C1rC~r'1r~t~n:Ge.-~o. a~yt16pe(nrreaswithili-iliidistifrbedpatro[1)yIfer.
(r~l~tiveIYI1i1(}isttirbed also m~~nsno-gJ."~g) Pojnts = 5
J 100 ni (330ft) ()frelatively undisturbed vegetated areas, rocky areas, or op~ ater
> 50%cirgjmfeterice. points = 4
........ .........---.. ... . -~ '. '-:. ..-, >- ....... .............::...'........ '.' .... ..... .. . . . . .... . . .. ............... ........
- 5qW (I10~19fr~t~tively undisturbed vegetated areas, rocky areas, or()~Yllw:ater
>9?%circ,1~mfrte~ge.. .. ~eints = 4
- I OO}]l (3~p~J~tt:latively undisturbed vegetated areas, rocky areas, Orp~~nwater
>25% circl1trlference, . Po(Bts = 3
": .,-','-.,,> ' " ;;,' '.
- 50 m (170ft)()ff.ela,~yely undisturbed vegetated areas, rocky areas, or ope~water
for> 50% cirCUiilfeteIlce. Points = 3
If ~~er does Ilot meet any of the criteria above
- No paved ar~a~ (except PCive(:1 trails) or buildings within 25 m (80ft) of w~t1and >
95% cit~Uli1fere~ce. pght to J;D.od~rate gr~g, or lawns are OK.P~mts = 2
- No paved are(l.sor buildings wltmn 50nl. of wetland for >50% circumferen,ce.
Light to moderate grazing, or lawns are OK. Points = 2
- Heavy grazing in buffer. Points = 1
- Vegetated buffers are <2m wide (6.6ft) for more than 95% of the circumference
.. (:..~g.tiM~~t}el9~,"pa~g?1)~Cllt be(.{r()ck~Atyn(lto.e4geof\vetland 'cP~~ts=O.
- Buffer does not meet any of the criteria above. Points = 1
nrD'
UIJ
y
H 2.2 Corridors and Connections (seep. 81)
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 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 ~tland part of a relatively undisturbed and unbroken vegetated /1
corridor (either riparian or upland) that is at least 50ft 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 = 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 mi of a large field or pasture (>40 acres) OR
within 1 mi of a lake greater than 20 acres?
YES = 1 oint NO = 0 oints
Wetland Rating Form - western Washington
15
August 2004
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"A,
H 2.3 ~earor adl,~cent tootherbrio~tVl1abitats 11s~e~by WDF~ (see p. 82)
WhichOf the following pn6rityb.abitats are, wlthh133Qft (lOOih) of the wetland?
(s~~J~tfor ci'TYlOrf! det{lil~ddescril1Fon oftheseprioiityhabitats)
_R!yarian:Tlie~~a ~djace~t to~qlm9P ~Yst~ V{jthfl~wing ~a~~that contains
elelllentsQflj{)fuaqi.ul.ti~i1pdterrestrill1..~cQsy~tel111;}\'J,lic!rIlilltua1lyi@ue;n9~~~ch ~tl1er.
_~p~~I,~~~~tls:~e9r~~dsW?-ds,9r,~SR~11~~aJ~~,~O.~ha (2 acres).
-c;ljf!s,: qr~~~rtr~n 7~6 Jl1 (2?Jt) highClll4 o??~~fb~~OVl5000 ft.
_ OI~-~oW!l1f()~ests:(8~d-gr9Wth w~!it()f S~sc~~:crest)~tlll14s of at least 2 tree
s~~ci~s'JQI'J111ng~'D:lil.!tk l!3-yer~.cap.op,y ~tl.t9cca~i9!J~l,smaIl or~nin9s; with at
.1~~t7qtfe,~s/llIl(8t,r~7~/a8'~)>~lfm(J3~)r4R~61" >?OQyears of age.
----l\1~mt~ f9:re,$t~: .S~~,Wthayel"~~7ciiap.1~t~~!i,~f'~~~~53,fll1(21in) dbh; crown
cp~er,w.')rb~J~~~;~~JQQ~;.pr9WJl.C~y~#Ybel~,~sthat .100%;:d~ay,
4ecadel1ce~ nl11J:l~ersMSlla~s,. and (m~ntityof.hltgetiowiu~d rliateIjaI is generally
17ss,thahJl'l~tf()~d~91,~-~9wth;80- 202y~~rs olciv.rest ofth7<:ClScade crest.
_Pr~iI:i~s: .R,:elativ~lYUn,.cli~tlltb~4areas.(as iI1,91c~teci lJydoI1$ance .ornative plants)
",bfreg.rasse,sanO/otforbsfdllfl tb,ena~arcliIn~ pl~tconlIlllmity.
----:T8Jus: HOtp.og~ousareas()f r()ck mbbI~ rartg~g; inavl;;rage size 0.15 - 2.0 m (0.5 -
6,.5ft), cOIllPosed(){pa~al~a1:l4esite,~cl{orsedim~n!mY rock, including riprap
s~d7s andniinetailirtgs. Maybe associated 'with cliffs.
~Caves: A naturally occurritig cavity, recess, void, or system of interconnected
passages
_Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations
. where canopy coverage of the oak component of the stand is 25%.
---,::UrbailNatriraIOpen.Space:=A .pri()rity"speciesiesides.WifJ"l1t1of'is.aClJateiiftollie
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.
_EstuarylEstuary-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 O.5ppt. during the period of average annual
low flow. Includes both estuaries and lagoons.
_MarinelEstuarine 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 2 priority habitats = 3 points_ ~
Ifwetland has 1 riori habitat = 1 oint (No habitats. 0 oints
Wetland Rating Form - western Washington
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H 2':::Z~~itt~~h::tfi~) ~:;~e8~e one description of the landscape around the JfHfk ~r~ t OrJ~ D~O
There ar~at H~llst3othef'ye9ap.ds within ~. mile, and the connections between them
~erel~~v~ly 1,1D.clistil!1:>~d (light grazing between wetlands OK, as is lakeslfore with
someb()~tip~,1:>ut ponnections should NOT be bisected by paved roads, fill, fields,
oroth~r 4evelopment. P9ints = 5
The wetland is Lake-'fringe on a lake with little disturbance and there are Jother lake-
.--fiingewetlaildswithin-V2-mile . . -~points;;;5
There are at le,ast 3 other wetlands within ~ mile, BUT the connections benve
are disturbed points = 3
The wetl~dis Lake..fringe on a lake with disturbance and there are 3 oilier e-
frirlgewetland within % nrile p~iD.tS = 3
Tl1eI"e isatleast lwet1andwithin ~ mile. points = 2
There are no wetlands within ~ mile. points = 0
3
H 2. TOTAL Score - <>pportunity for providing habitat
Add the scores in the column above
Total Score for Habitat Functions - add the points for HI, H 2 and record the result on
.1
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Wetland Rating Form - western Washington
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Rir"'l 1('1 iF? l[ \( T 1D 1-D
led \_~ L J 'Vi[;1 ,. )
CATEGORIZATION BASED. ON SPECIAL CHARACTERISTICS
IHrr~~n~, rO!l1,!'fY ~rrT
Pleasf~ete~11til1e ij'(~ew.e~lq1t~"J~etS the attributes described below and cifd~ 't1fl!1 ~ u U I~ I U L J
aJ1proprialetii1~wers a,ndCa.fegory.
..SC 1.(jEstij~iiD.~-W~tlana.s($~l!pY86)
Does the wetla.ndIll.eettl1efollowing criteria for Estuarine wetlands?
-Th~4~mt.~~p,fW3.ter r~ginie is tidal,
-\TeF7~t~d,.~d
- Witli as~lir1ity~eater than 0.5 ppt.
YES = Go to SC 1.1 NO +---
SC 1.1 Isthe,~etlaij~ WithinaNa~omu Wi1@feRefuge, National Park,
National ~sti.1ary R.~serve, N atuial Area Preserve, State Park or Educational,
Environmental, otSciehtific Reserve desighated UIider WAC 332-30-151?
YES = Cate 0 I 0 to SC 1.2
sc ~~~!~:~:~=~ a~~ ~::;;~~~:~~~~
- 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 the only species that cover
.more..t1fiiTr~IO%QfllieWet1and~ffieiiTheweuana.'.snoU1abe'givenaalial
rating (I/II). The area of Spartina would be rated a Category IT while the
relatively undisturbed upper marsh with native species would be a
Category I. Do not, however, exclude the area of Spartina in
determining the size threshold of 1 acre.
- At least % of the landward edge of the wetland has a 100 ft buffer of
shrub, forest, or un-grazed or un-mowed grassland.
- The wetland has at least 2 of the following features: tidal channels,
depressions with open water, or contiguous freshwater wetlands.
Cat. I
Cat. I
Cat. n
CDuaI
rating
IIll
Wetland Rating Form - western Washington
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D 11:'1 ("\v If '\\ 1 Er .. DTI
II ,\,..led' JJLd II WI, I
SC 2.0 NlittIrlil JI~Ii.ta~e Wetlllnds (seep. 87)
Natural H:~ri~ge wetlallcls 4ave been identified by the Washington Natural Heritage
Progr~NRa~~itl1erWgh quality1.l11Qis~bed wetlands or wetlands that support
state Threatened,En~~n~ered,.br..Sen.sitiYe.plant species.
SC 2.1 Isthe wetlap.d~eingrated in aSeffion/Township/Range that contains a
Natural Heritage wetland? (this question is used to screen out most sites
-before-}'ou-neelUo-(]lJntaet--WNHPIDNR).
SITIR wormation from Appendix D -'- or accessed from WNHPIDNR web site _
Cat. I
YES_- contact WNHP/DNR (see p. 79) and go to SC 3.2
NO~
SC 2.2 Has DNIti4~n~~ed the w~tla.nd as a lrigh qualityundisturbed wetland or as
or as a site witli stap,ttl1t-eatened or endartge.roop1ant species?
yES =C~~g()ryI NO ~
-,~,'";'~~,;,: ,,;' M:,:~{~;i1t~,t~..-1~;}_$~
2;-1;._'V'.
SC ~.~)Jg~s,(s~e p.87)
Does the wetland (or part of the wetland) meetboth the criteria for soils and
vegetation in~o~s? U~f!the. key below to identify if the wetland is a bog. 1fyou
answer yes you wilt still need to rate the wetland bas,eti on its functions.
1. Does thewetlap.d have organic soil horizons (i.e. layers of organic soil),
either peats orI1iucks, that compose 16 inches or more of the first 32 inches
of the soil profile? (See Appendix. B for a field key to identify organic
soils)? Yes - go to Q. 3 No - go to Q. 2
2. Does the wetland have organic soils, either peats or mucks that are less than
., .~t6-in'Ches.tleepljver~bedro"'Ck;'nr ID1impeIl11ea11ll:fhMdpan~sueh~an:~lay'or.
volcanic ash, or that are floating on a lake or pond?
Yes - go to Q. 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 Q. 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 hole 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.
3. 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
shrublherbaceous cover)?
4. YES = Category I
No .'-\- Is not a bog for purpose of rating
Cat. I
Wetland Rating Fonn - western Washington
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R TH !e JE if \\:7 1f~1[\\
~lLA'1 /J )1 \\; ICd.i)J
,. J,$! _,~1&tlt~ m;f;f.lfi8 <~'ffit%tJfu..~mhi[4a~~VSti~. ::' ." '0t:. ;,f;~
,CD
SC4.0 F'oreste~"'~tlaIlclt(see p. 90). I.:!'
Does thewetl~nd Mveat least I acre offor.est that meet one of these criteria for the
Department qfFishand WWllife's forests as priOlityJlllbitats? If you answer yes you
will stilll"lee~t~ratethe .l1!etland b{l~edon itsjim~tions,
- Ql~~~r()lVthf(w~sts: (\Vest OrCas9ade~rest)S~ds of at least two tree species,
fonni.tJ.g a niwti~laxe1"ed canopy witho~casiQrlal smaJl openings; with atleast~
. trees~acre(2Q~ees/h~ctare) thatare atl~ast 200 years of age OR have a _uu
di~eterat breast htight (cibh) of32 iIIcl1es(Sl cm) of more.
NOTE: '!he criterion for dbhisbasedoJl me~ureIll~~ts for upland forests.
J:'Yo;h~~~..*e~()I~:treesin",etla1l~ 'Will()fteti ~ye a~lJ1aner d~h
~e(:a~s:W-~p:~?Wthr~tesarep~~n sl()wer. Tb.e PP}Vcriterion is and "OR"
so~ld"~oWthfotests 46 not n~cessanlyhave tOl1ave ti"ees of this diameter.
-Mafut~'tQtests: (west of the Cas(;~c:le.Crest) Stalids where the largest trees are
80 - 200~eal"Sold (?R ~ave average diameters (~bh)exceeding 21 iI1~hes
(53qm};cro"\VrJ.cpyermay be less't4at 100%;deca.y; deca.dence, numbers of
snags, andqtiantity of large downed material is generally less than that found
in old-groWth.
YES = Category I NO ..1.
SC S.O Wetlands in Coastal Lagoons (see p.91)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
- The wetland lies in a depression adjacent to marine waters that is wholly
...()rJ!~~X.~~P!:l!~t~ft!t2!P.~~~...~~!~f~J.~X,!~dE~LgraY~.lR~).
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'f... not a wetland in a coastal lagoon
Cat. I
SC 5.1 Does the wetland meets 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 % of the landward edge of the wetland has a 100 ft buffer of
shrub, forest, or un-grazed or un-mowed grassland.
- The wetland is larger than 1/10 aGr~, (4350 square feet)
YES = Category I rN:O = Category II
Cat. I
Cat. D
Wetland Rating Form - western Washington
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R1f?'{~~ Tl\f lTf.!.? ?D' ,
)L,~ ~./ lw "'- 0/ LCd I
SC 6.0 Interdunal Wetlands (seep. 93) r' ,._.,,0,., " ..
Is the wetland west of the 1889 line (also called the We stem Boundary of Upland uHUlSUlv mmV Y DCD
Ownership or WBUO)?
YES ';go to SC 6.1 NO:t 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
. Graylalld-Westport-Iands west ofSR 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
once acre or larger?
YES = Category IT @-gO to SC 6.2
SC 6.2 Is the wetland between 0.1 and I acre, or is it in a mosaic of wetlands that
is between 0.1 and l.acre?
YES = CategoryllI
Wetland Rating Form - western Washington
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August 2004
Cat. n
Cat.m
IU/ rr