Critical Areas ReportOctober 11, 2019
Dmitriy Mayzlin
RMJ Holdings LLC
9675 SE 36th Street, Suite 105
Mercer Island, Washington 98040
RE: Critical Areas Report – “Woodlands at Redondo”
SWC Job #19-141
Dear Dmitriy,
This report describes our observations of any jurisdictional wetlands,
streams and buffers on or within 225’ of your property (Parcels
#042049012 & 9221) located off Pacific Highway South and South 304th
Street, in the City of Federal Way, Washington (the “site”).
Vicinity Map of site
Sewall Wetland Consulting, Inc.
Po Box 880 Phone: 253-859-0515
Fall City, WA 98024
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 2
The site is an irregularly shaped accumulation of two parcels
approximately 22 acres in size and located within the SW 1/4 Section 4,
Township 21 North Range 4 East of the W.M.
Above: King County iMap 2017 aerail photograph of the site.
METHODOLOGY
Ed Sewall of Sewall Wetland Consulting, Inc. inspected the site on May
22, 2019. The site was reviewed using methodology described in the
Corps of Engineers Wetlands Delineation Manual (Environmental
Laboratory, 1987), and the Western Mountains, Valleys and Coast region
Supplement (Version 2.0) dated June 24, 2010, as required by the US
Army Corps of Engineers and the City of Federal Way.
Wetlands were rated using the 2014 WADOE Wetland Rating system for
Western Washington.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 3
Soil colors were identified using the 1990 Edited and Revised Edition of
the Munsell Soil Color Charts (Kollmorgen Instruments Corp. 1990).
OBSERVATIONS
Existing Site Documentation.
Prior to visiting the site, a review of several natural resource inventory
maps was conducted. Resources reviewed included the National Wetland
Inventory Map, the NRCS Soil Survey online mapping and the WADNR
Fpars stream mapping website and the WDFW Priority Habitats and
Species maps for the site.
Soil Survey
According to data on file with the on-line NRCS Soil Survey, the site is
mapped as a mix of Alderwood and Arents soils of varying slopes, and
Seattle muck on the southwest portion of the site.
Above: USDA Soil Survey Map of the site
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 4
Alderwood soils are moderately well drained soils formed in glacial till.
Arents are Alderwood soils that have been generally disturbed through
urbanization. Seattle muck soils are very poorly drained organic soils
formed under sedges. Seattle Muck soils are considered “hydric” or
wetland soils.
National Wetlands Inventory (NWI)
According to the NWI map for the site there are two linear features across
the southwest side of the site. One is an emergent wetland and one is a
stream.
Above: National Wetlands Inventory Map of the site.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 5
WADNR Fpars Stream Mapping
The Washington Department of Natural Resources Fpars stream type
mapping website depicts a Type N water crossing the southwest portion
of the site. This is depicted draining from Steel Lake.
Above: WADNR Fpars stream mapping
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 6
WDFW Priority Habitat mapping
According to the WDFW Priority Species maps for the site, there is a
wetland across the southwest side of the site. All wetlands are
considered priority habitats by WDFW.
Above; WDFW Priority Species and habitat mapping of the site and area
surrounding the site.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 7
City of Federal Way Critical Areas Mapping
According to the Federal Way Critical Areas Map, there is a stream (blue
line) and associated wetland (green area around stream) along the
southwest side of the site, as well as some erosion hazard areas (yellow
shading).
Above: City of Federal Way Critical Areas map of the area of the site.
The Watershed Company July 21, 2104 Steel lake Review
A review of a study by Radeke Associates for the property directly south
of 304th Street and bordering Steel Lake and Redondo Creek was
reviewed by The Watershed Company in a July 21, 2014 in regards to
development of Parcels #0921049012 & #092049199.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 8
Of significance in this report is the description of Redondo Creek, which
also passes through the site, determined by Matt Herrera of the City at
that time as a “minor stream” due to lack of fish as a result of a
downstream fish barrier (see boxed text from the report below).
Above: Excerpts from the July 21, 2014 Watershed Company report
Field observations
Uplands
The site is forested with a mature Douglas fir forest that slopes from a
high point on the northeast, to a low point on the northwest. The
overstory throughout the site is 2’-3’ dbh douglas fir, western hemlock
and smaller red alder. The understory generally consists of a mix of
areas of dense salal with red huckleberry, cascara, salmonberry and
some Himalayan blackberry. The site contains numerous footpaths and
open transient campsites with large amounts of associated trash,
shopping carts, tents and makeshift shelters, and human waste.
Transients were observed occupying the site during our site visit.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 9
Above: King County iMap lidar depcitsion of the site.
Soil pits excavated throughout the upland portions of the site revealed a
silt loam similar in profile to the Alderwood soil series and were dry or
moist during our site visit.
Wetlands
A single wetland is found along the western side of the site with an
associated stream channel. The wetland and stream are connected to
wetlands and streams to the south of South 304th Street via a 30” plastic
culvert. Flow in the culvert was observed to flow northerly, and was
determined not to be an “equalizing” culvert, thus separating it from
wetlands south of 304th for the purpose of rating the wetland.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 10
Wetland A
Wetland A consists of a riverine and depressional, forested, scrub-shrub
and emergent wetland located along the edges of Redondo Creek, an
intermittent stream that flows from Steel Lake northerly through the site.
The eastern edge of the wetland was flagged with pink flags labeled A1-
A23. From A23-A40, the flags denote the OHWM of the intermittent
stream known as Redondo Creek. As previously noted, the 30” culvert
under 304th appears to flow only in one direction (to the north). Since
the culvert does not appear to act as an equalizing pipe between the
wetland on-site and the wetland south of 304th, the wetland on the site
was rated as a separate unit from the wetland south of 304th as is
typically done with wetlands bisected by roads/culverts that have flow in
one direction.
The emergent and scrub-shrub portions of the wetland are located just
north of South 304th Street, with the forested area along the perimeter
and to the north.
This emergent portion of the wetland contains a mix of speedwell, water
parsley, yellow iris, broad leafed cattail, and lady fern. The scrub shrub
portion contains a mix of hardhack, salmonberry and crabapple. The
forested portion contains some red alder and previously mentioned
species in the understory.
Although the vegetation community within the wetland is fairly intact,
the entire wetland is heavily degraded from trash and debris associated
with the transient population on the site. The outlet of the wetland is a
dug ditch that drains to the north forming the upper reach of Redondo
Creek. It is possible the connection to the north was a man -made
connection years ago as the northern section of the ditch is dug fairly
deep with vertical sides through upland area.
Soil pits excavated within this wetland revealed a black sapric organic
material on the southern end of the wetland, with the north portion
being a dark gravelly loam. Soils within the wetland were inundated with
up to 24” of standing water on the south and saturated on the north.
The ditched creek was dry from flag A25 north during our site visit.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 11
Using the US Fish and Wildlife Wetland Classification Method (Cowardin
et al. 1979), Wetland A contains areas that would be classified as PEM1C
(palustrine, emergent, persistent, seasonally flooded), PSS1C (palustrine,
scrub-shrub, broad leaved deciduous, seasonally flooded) and PFO1C
(palustrine, forested, deciduous, seasonally flooded).
Using the 2014 WADOE Wetland Rating system and rating the wetland
as a depressional type wetland, this wetland scored a total of 20 points
with 6 for habitat. This indicates a Category II wetland. Category II
wetlands with 6 habitat points in the City of Federal Way have a
standard 150’ buffer measured from the wetland edge.
Above: Section from FWMC 19.145.420.2 regarding wetland buffers.
Redondo Creek
As previously discussed, Redondo Creek is a ditched feature through the
center of the wetland and drains to the north towards SR 99 where it
passes through a trash rack and enters a long culvert and storm
drainage system before daylighting to the north and west of SR99. Since
the stream is within the wetland and the 150’ buffer far exceeds the
buffer of the creek where it surrounds the stream, the OHWM of the
creek was marked with flags A24-A40as well as AA1-AA16 on the west.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 12
The stream channel becomes evident within the wetland around flag A19,
and then at A23 becomes just a linear dug ditch that is mud bottomed
and approximately 10’ wide. The ditch narrows to the north where it is
dug more deeply through upland area and at A25 was completely dry.
The channel is covered with makeshift crossings along trails made by
transients, and mattresses, trash and debris clogs the ditch on the
north. The trash rack on the culvert at SR99 was covered with piles of
debris and trash.
This stream in the past has been called a “minor stream” (non fish
bearing) by the City of Federal Way under the old regulations and was
considered blocked by a natural downstream fish barrier to anadromous
fish. Therefore, based upon inventory data and the City’s previous
determination of this stream as a minor stream or non-fish bearing,
which would equate to an Ns stream due to seasonal flow. According to
FWMC 19.145.270.1, Type Ns have a 35’ buffer measured from the
OHWM.
Proposed Project
The proposed project is a 68 lot residential subdivision with associated
infrastructure. No impacts to the Category II wetland or the Type Ns
stream are proposed.
Buffer Averaging
A minor amount of buffer averaging of the buffer of Wetland A is
proposed due to the slope of the property and the required grading depth
near the edge of the buffer (see attached averaging site plan). This minor
encroachment would be 18,674sf in size and would reduce the buffer in
this area to a minimum of 112.5’’ which is 25% of the standard buffer.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 13
Under FWMC 19.145.440.5, buffer averaging of wetland buffers ios
permitted through meeting the following criteria;
(5) Buffer averaging. The city will review and decide upon buffer averaging
using process III in Chapter 19.65 FWRC, based on the following criteria
that shall be added to the critical areas report:
(a) The total area of the buffer after averaging is equal to the area
required without averaging;
Response: The amount of area proposed to be reduced is 18674sf, the
amount of buffer area to be added as compensation is 19,188sf, which
meets this criteria.
(b) The buffer is increased adjacent to the higher functioning area of
habitat or more sensitive portion of the wetland and decreased
adjacent to the lower functioning or less sensitive portion;
Response: The area proposed to be reduced has been impacted by past
transient use. The area proposed to be added is mature forest with some
transient impacts but generally less than the reduction area.
(c) The buffer at its narrowest point is not reduced to less than 75
percent of the required width; and
Response: The buffer is reduced to 112.5’ which is 25% of the standard
150’ buffer, which meets this criteria
(d) Unless authorized in writing by a consenting neighboring property
owner, the averaging will remain on the subject property.
Response: The proposed averaging of the buffer will be wholly contained
within the subject property, which meets this criteria.
304th Right-of -way Improvements
The required widening of South 304th Street will require impacts to some
area of buffer of Wetland A, primarily from grades due to the elevations of
the road and the site. This area of buffer is highly modified from existing
storm infrastructure, transient camps and pathways, and the fill around
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 14
the existing culvert. This buffer is already substantially modified from
these uses and appears to meet the criteria of FWMC 19.145.440.4 (4)
Permanently altered buffer. The director may provide written approval for a
buffer reduction when existing conditions are such that portions of the
required buffer exist in a permanently altered state (e.g., roadways, paved
parking lots, and permanent structures) and do not provide any buffer
function. The buffer may be reduced up to the area where the altered
conditions exist.
It is our contention this buffer is already permanently altered and should
be considered by the director under this portion of Code.
If you have any questions in regards to this report or need additional
information, please feel free to contact me at (253) 859-0515 or at
esewall@sewallwc.com .
Sincerely,
Sewall Wetland Consulting, Inc.
Ed Sewall
Senior Wetlands Ecologist PWS #212
Attached Data Sheets
Rating Forms
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 15
REFERENCES
Cowardin, L., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of
Wetlands and Deepwater Habitats of the United States. U.S. Fish and
Wildlife Service, FWS/OBS-79-31, Washington, D. C.
Environmental Laboratory. 1987. Corps of Engineers Wetlands
Delineation Manual, Technical Report Y-87-1. U. S. Army Corps of
Engineers Waterways Experiment Station, Vicksburg, Mississippi.
Federal Way Municipal Code Chapter 19.145
Muller-Dombois, D. and H. Ellenberg. 1974. Aims and Methods of
Vegetation Ecology. John Wiley & Sons, Inc. New York, New York.
Munsell Color. 1988. Munsell Soil Color Charts. Kollmorgen
Instruments Corp., Baltimore, Maryland.
National Technical Committee for Hydric Soils. 1991. Hydric Soils of the
United States. USDA Misc. Publ. No. 1491.
Reed, P., Jr. 1988. National List of Plant Species that Occur in
Wetlands: Northwest (Region 9). 1988. U. S. Fish and Wildlife Service,
Inland Freshwater Ecology Section, St. Petersburg, Florida.
Reed, P.B. Jr. 1993. 1993 Supplement to the list of plant species that
occur in wetlands: Northwest (Region 9). USFWS supplement to Biol.
Rpt. 88(26.9) May 1988.
USDA NRCS & National Technical Committee for Hydric Soils, September
1995. Field Indicators of Hydric Soils in the United States - Version 2.1
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 16
Above: Outlet of Redondo Creek at north end of site.
Below: Redondo Creek on north end of site.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 17
Above: Ditched portion of channel near flag A23
Below: Degraded stream buffer area near north end of site.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 18
Above and below: Makeshift transient stream crossings
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 19
Above and below: Relatively undisturbed buffer area near center of the site.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 20
Above: 30” culvert discharging Redondo Creek onto site under S 304th St.
Below: Looking north into the wetland from the culvert.
Woodlands at Redondo#19-141
Sewall Wetland Consulting, Inc.
October 11, 2019
Page 21
Above and below: Forested and scrub-shrub (hardhack) areas of the
wetland.
5i»
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Project/Site: A-M^ctw CfnSyc Qowit^.*/< Citv/Countv: F«gA<UuA U^AAi Ramnlinn Date S~2-2."/c\
Applicant/Owner: State:
Investigatof(s): T^^> SgWcv\ Section, Township, Range:
'(A) fit
Sampling Date:.
Sampling Point:
5*/ 7"2i/v iz-va
Landform (hillstope. terrace, etc):.
Subregion (LRR):
Soil Map Unit Name:
Lat
Local relief (concave, convex, none):
Long:
NWI classification.
_ Slope (%):
Datum:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes
Are Vegetation . Soil . or Hydrology significantly disturbed?
Are Vegetation , Soil , or Hydrology naturally problematic?
No (If no, explain in Remarks.)
Are "Normal Circumstances" present? Yes
(tf needed, explain any answers in Remarks.)
No
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc. ^1 Hydrophytic Vegetation Present? Yes.
Hydric Soil Present? Yes _
Wetland Hydrology Present? Yes _
^2-
No
Is the Sampled Area
within a Wetland? Yes
Remarks:
VEGETATION - Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: ) % Cover Species? Status
Dominance Test worksheet:
Number of Dominant Species ««-?
That Are OBL. FACW. or FAC: ^~ (A> 1.
Dominance Test worksheet:
Number of Dominant Species ««-?
That Are OBL. FACW. or FAC: ^~ (A>
2 Total Number of Dominant ~"Z—
Soecies Across All Strata: (B) 3
Total Number of Dominant ~"Z—
Soecies Across All Strata: (B)
4 Percent of Dominant Species i / , y
That Are OBL. FACW. or FAC: / ^(MB) = Total Cover Percent of Dominant Species i / , y
That Are OBL. FACW. or FAC: / ^(MB) Saolino/Shrub Stratum (Plot size: )
Prevalence Index worksheet:
Total % Cover of: Multiply by: r
2
Prevalence Index worksheet:
Total % Cover of: Multiply by:
3. OBL species x 1 =
4 FACW soecies x 2 =
5 FAC SDecies x 3 =
= Total Cover FACU SDecies x 4 =
Herb Stratum (Plot size: > UPL species x 5 =
Column Totals: (Ai (B)
Prevalence Index = B/A = 3. Prevalence Index = B/A =
4 Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
5.
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
6
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
7.
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
8
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
9
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
10
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic 11
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
Hydroobftic Vegetation Indicators:
_j-/6ominance Test is >50%
Prevalence Index is S3.01
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
= Total Cover
Woodv Vine Stratum (Plot size !
Hydrophytic
Vegetation
1. Hydrophytic
Vegetation 2
Hydrophytic
Vegetation
= Total Cover
% Bare Ground in Herb Stratum
Present? res NO
Remarks
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version
SOIL Sampling Point
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)
Matrix
Color (moist)
Redox Features
Color (moist) Type Loc' Texture Remarks
'Type: C-Concentration. D-Depletion, RM=Reduced Matrix. CS=Covered or Coated Sand Grains, 'Location; PL=Pore Lining. M=Matrix.
VdricJSott
^Histosol(A1)
indicators: (Applicable to all LRRs, unless otherwise noted.)
_ Sandy Redox (S5)
Histic Epipedon (A2) Stripped Matrix (S6)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLR A 1)
J^Hydrogen Sulfide (A4) Loamy Gteyed Matrix (F2)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6)
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7)
Sandy Gleyed Matrix (S4) Redox Depressions (F8)
Indicators for Problematic Hydric Soils3:
2 cm Muck (A10)
Red Parent Material (TF2)
Other (Explain in Remarks)
Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic
Restrictive Layer (if present):
Type:
Depth (inches): Hydric Soil Present? Yes. No
Remarks
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check ail that apply) Secondary Indicators!? or more reguired]
Surface Water (A 1) Water-Stained Leaves (B9) (except MLRA __ Water-Stained Leaves (B9) (MLRA 1, 2,
_High Water Table (A2)
^Saturation (A3)
1,2, 4A, and 4B) 4A, and 4B) _High Water Table (A2)
^Saturation (A3) Salt Crust <B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (CI) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (07)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches).
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches) Wetland Hydrology Present? Yes No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available
Remarks
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Intenm Version
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
4-W
Project/Site:
AppfcanfOwnef.
Investigators): _
A-MMicm KnSyc Pew i <!>•*/< City/County F«aAAA»A tr*^<V,'
j=_&. Sgwc.W"
State:
Sampling Date:.
Sampling Point;
Section, Township, Range: S H 7~Z.\V Y_T
Landform (hiltslope, terrace, etc):,
Suoregion (LRR): Lat:
Local relief (concave, convex, none):.
Long:
Soil Map Unit Name: /4/U*f~*c*t + NWi classification:
_ Slope (%)
Datum:
Are climatic / hydrotogic conditions on the site typical for this time of year? Yes _
Are Vegetation , SoH . or Hydrology significantly disturbed?
Are Vegetation . Soil . or Hydrology naturally problematic?
No. (If no, explain in Remarks)
Are 'Normal Circumstances" present? Yes. No
SUMMARY OF FINDINGS - Attach site map showir
(If needed, explain any answers in Remarks.)
sampling point locations, transects, important features, etc.
y
Hydrophytic Vegetation Present? Yes No _. s~
Hydric Soil Present? Yes No ^
Is the Sampled Area
within a Wetland? Yes No *r
Wetland Hydrology Present? Yes No ^
Remarks;
VEGETATION - Use scientific names of plants.
Tree Stratum (Plot size: )
1. fstsc^*f5^n\- AA**^2/*Si,"
2
3
4
Sapling/Shrub Stratum (Plot size:
\. '
2.
3.
4. :
5
Absolute
% Cover
Dominant Indicator
Species? Status
• Total Cover
~ Total Cover
Herb Stratum (Plot size:
1. _
2.
3.
4.
5.
6.
7.
8.
9.
10
11.
= Total Cover
Woody Vine S^raj|urn (Plot size
1.
_= Total Cover
% Bare Ground in Herb Stratum.
Remarks
Dominance Test worksheet:
Number of Dominant Species
That Are OBL. FACW, or FAC:
Total Number of Dominant
Species Across All Strata:
Percent of Dominant Species
That Are OBL, FACW. or FAC
<3 (A)
(8)
(MS)
Prevalence Index worksheet:
Total % Cover of:
OBL species
FACW species
FAC species
FACU species
UPL species
Column Totals:
Multiply by
x 1 • .
x2 = .
x 3= .
X4 = .
x5* .
(A) . (8)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
Dominance Test is >50%
Prevalence Index is 53.0'
Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants
Problematic Hydrophytic Vegetation' (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
Hydrophytic
Vegetation
Present? Yes. No.
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version
SOIL Samphng Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix _ Redox features (inches) Color tmoisi Texture
'Type: C=Concentration. D*Oeptetion, RM=Reduced Matrix. CSaCovered or Coated Sand Grains. 'Location: PL=Pore Lining, MsMatrix.
Hydric Soil Indicators: (Applicable to all
Histosot(AI)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Depleted Below Dark Surface (A11)
Thick Dark Surface (A12)
Sandy Mucky Mineral <S1)
Sandy Gleyed Matrix <S4)
LRRs, unless otherwise noted.)
Sandy Redox (S5)
Stripped Matrix (S6)
Loamy Mucky Mineral (F1) (except MLRA 1)
Loamy Gleyed Matrix (F2)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Depleted Dark Surface (F7)
Redox Depressions (F8)
Indicators for Problematic Hydric Soils'
2cmMuck(A10)
Red Parent Material (TF2)
Other (Explain in Remarks)
'indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic
Restrictive Layer (if present):
Type:
Depth (inches):
Remarks
HYDROLOGY
Wttiind~^
Primary Indicators (minimum of one required, check
Surface Water (A 1)
High Water Table (A2)
Saturation (A3) _
Water Marks (B1)
Sediment Deposits (B21
Drift Deposits (B3)
Algal Mat or Crust <B4)
Iron Deposits (85) __
Surface SoU Cracks (B6) __
Inundation Visible on Aerial Imagery <B7)
Sparsely Vegetated Concave Surface (88)
all that apply)
. Water-Stained Leaves (89) (except MLRA
1, 2.4A, and 4B)
. Salt Crust (811)
Aquatic Invertebrates (813)
Hydrogen Sulfide Odor (C1>
. Oxidized Rhizospheres along Living Roots (C3)
. Presence of Reduced Iron (C4)
, Recent Iron Reduction m Tilled Soils (C6)
. Stunted or Stressed Plants (01) (LRR A)
Other (Explain in Remarks)
SeowK^.lndiiaWpfs (2 or. mor+ reoured)
Water-Stained Leaves (B9) (MLRA 1.2,
4A, and 4B)
Drainage Patterns (B10)
Dry-Season Water Table (C2)
Saturation Visible on Aerial Imagery (C9)
. Geomorphic Position <D2)
Shallow Aqurtard (D3)
FAC-Neutral Test (D5)
Raised Ant Mounds (DS) (LRR A)
Frost-Heave Hummocks (07)
FMd Observations:
Surface Water Present? Yes No.
Water Table Present? Yes No.
Saturation Present? Yes No.
Descrlbe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available
Depth (inches).
.Depth (inches):
Depth (inches)
Remarks
US Army Corps of Engineers Western Mountains, Valleys and Coast - Interim Version
Project/Site;
Applicant/Owner
Irtvesbgator(s): _
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
A-MUrfc*-* Cli***'o poxi<ti."/< City/County; _ Samrtinn Data:
State:
Sampling Date:.
Sampling Point'.
Section, Township, Range: S H 7~Z.\ tZ-*f£
Landform (hillslope. terrace, etc.):
Subreojon (LRR): Lat:
Local relief (concave, convex, none):.
Long:
Soil Map Unit Name: /fe^?~Wc*^ / /#W& NWI classification:
_ Slope (%):
Datum:
Are climatic / hydrotogic conditions on the site typical for this time of year? Yes
Are Vegetation , Soil . or Hydrology significantly disturbed?
Are Vegetation . Soil . or Hydrology naturally problematic?
No (If no, explain in Remarks.)
Are Normal Circumstances" present? Yes _
(If needed, explain any answers in Remarks.)
No
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
HydroDhvticVepetation Present? Yes '-^No
Hydric Soil Present? Yes -^#o
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks:
VEGETATION - Use scientific names of plants.
Dominance Test worksheet:
Number of Dominant Species
That Are OBL. FACW, or FAC: 21 (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: (Affl) (Affl)
Tree Stratum (Plot size:.
1.
2.
3.
4
Absolute
% Cover
Dominant Indicator
Species?
Saolirw/Shrub Stratum (Plot size:
** Total Cover
3___
= Total Cover
Herb Stratum (Plot size:
t.
2.
3.
4.
5.
6.
7.
8.
9.
10
11
Prevalence Index worksheet:
Total % Cover of:
OBL species
FACW species
FAC species
FACU species
UPL species
Column Totals:
Multiply by
x 1 = .
x2 = .
x3 = .
x4».
x5».
(A) , (B)
Prevalence Index = B/A =
• Total Cover
Woody Vwre.SfrrtWn (PtotsJze
1. ,
= Total Cover
! % Bare Ground in Herb Stratum .
Hydrophytic Vegetation Indicators:
_ ^flominance Test is >50%
Prevalence Index is S3.0'
Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation* (Explain)
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic
Hydrophytic
Vegetation
Present? Yes No.
Remarks
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version
SOIL Sampling Point:
Profile Description: (Descr^^
Depth Matrix _ Redox Features
(inches) &m„wMi Remarks
'Type CgConcentr-Con. D^Deplelion, RM=Reduced Matrix. CS=Covered or Coaled Sand Grains, 'Location: PL=Pore Lining, M=Matrix
Indicators for Problematic Hydric Soils':
2 cm Muck (A1Q)
Red Parent Material (TF2)
Other (Explain in Remarks)
'indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic
HydricJSoil
J_^Histasol(A1)
Indicators: (Applicable to all LRRs, unless otherwise noted.)
Sandy Redox (S5)
Histic Epipedon (A2) Stripped Matrix (S6>
Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface <F6)
Sandy Mucky Mineral <S1) Depleted Dark Surface (F7)
Sandy Gleyed Matrix (S4) Redox Depressions (F8)
Restrictive Layer (if present):
Type: ,
Depth (inches):
Remarks
Hydric Soil Present? Yes. No
HYDROLOGY
Wetland Hydrology md^tors:
Primary Indicators (minimum pf one required, check
tfrface Water (At)
_ High Water Table (A2)
_ Saturation (A3)
Water Marks (B1) _
Sediment Deposits (B2)
Dnft Deposits (B3S
Algal Mat or Crust <B4)
Iron Deposits (B5)
Surface Sal Cracks (B6)
Inundation Visible on Aerial Imagery (B7) __
Sparsely Vegetated Concave Surface (B8)
all that appiy)
Water-Stained Leaves (B9) (except MLRA
1.2.4A, and 4B)
Salt Crust (811)
. Aquatic invertebrates (B13)
. Hydrogen Sulfide Odor (Ct)
Oxidized Rhizospheres along Living Roots <C3)
Presence of Reduced Iron (C4)
, Recent Iron Reduction m Tilled Soils (C6)
. Stunted or Stressed Plants (01) (LRR A)
Other (Explain in Remarks)
Secondary indicators (2 or mote required)
Water-Stained Leaves (B9) (MLRA 1, 2,
4A, and 48)
Drainage Patterns (B10)
Dry-Season Water Table (C2)
Saturation Visible on Aerial Imagery (C9)
Geomorphic Position (D2)
ShaBow Aquitard (D3)
FAC-Neutral Test (DS)
Raised Ant Mounds (D6) (LRR A)
Frost-Heave Hummocks (D?)
Field Observations:
Surface Water Present?
Water Table Present?
Saturation Present?
Yes.
Yes.
Yes
No.
No.
No
Depth (inches).
Depth (inches):
Depth (inches) Wetland Hydrology Present? Yes
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available
Remarks
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Project/Site A-M4A,_«w C liSj'C pcwick.'/< City>Counly:. SamoUna Date:
'i
Applicant/Owner: State:
Irtvestigator(s): Section, Township, Range:
(A) *
Sampling Date:.
Sampling Point'.
Landform (hiHslope. terrace, etc.):
Subregkm (LRR):
Soil Map Unit Name: /4/U**"M*f + /frWft
Lat:
Local relief (concave, convex, none):
Long:,
NWI classification:
_ Slope (%):
Datum:
Are climatic / bydrotogic conditions on the site typical for this time of year? Yes _
Are Vegetation . SoM . or Hydrology significantly disturbed?
Are Vegetation Soil , or Hydrology naturally problematic?
No. (If no, explain in Remarks)
Are "Normal Circumstances" present? Yes. No
SUMMARY OF FINDINGS - Attach site map showii
(If needed, explain any answers in Remarks.)
sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Hydric Soil Present? Yes No _J_^_^
Wetland Hydrology Present? Yes No
Is the Sampled Area
wfthin a Wetland? Yes No —
Remarks;
VEGETATION - Use scientific names of plants.
Tree Stratum (Plot size: i
3.
4
Saolino/Shrub Stratum (Plot size: _
Herb Stratum (Plot size:
1.
2.
3.
4.
5.
6
7
Absolute
% Cover
"J i>
Co
Dominant Indicator
Species? Status
= Total Cover
__s_im (Plot su:
.» Total Cover
Dominance Test worksheet:
Number of Dominant Species
That Are OBL. FACW, or FAC:
Total Number of Dominant
Species Across All Strata:
Percent of Dominant Species
That Are OBL, FACW, or FAC:
(A)
(6)
(A/8)
Prevalence Index worksheet:
Total % Cover of:
OBL species
FACW species
FAC species
FACU species
UPL species
Column Totals.
MuU'P'y by
x 1 =
x2=
x 3 *
x4 =
x5 =
(A) <B>
Prevalence Index = B/A ••
Hydrophytic Vegetation Indicators:
Dominance Test is >50%
Prevalence Index is <3 o'
Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants'
Problematic Hydrophytic Vegetation (Explain i
'indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Woodv Vme Stratum (Plot size
1.
2
= Total Cover
_= Total Cover
i Hydrophytic
! Vegetation
I Present? Yes No.
% Bare Ground in Herb Stratum .
Remarks
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version
Wetland name or number _ RATING SUMMARY - Western Washington Name of wetland (or ID #): Jj/eJl-~4 ft Rated by_ Qafi /"Yes e of site visit: HGM Class used for rating___?^____2_. Trained by Ecology?__Ves No Date of training Wetland has multiple HGM classes? Y ___N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map OVERALL WETLAND CATEGORY. . (based on functions or special characteristics ) 1. Category of wetlajtd based on FUNCTIONS Category I - Total score = 23-27 """Category II - Total score =20-22 Category III - Total score =16-19 Category IV - Total score = 9-15 FUNCTION Improving Water Quality Hydrotogks Habitat Circle the appropriate ratings Site Potential 'hJ> M L \ CL? H (t») L Landscape Potential^ M L H "rvT/T_ Value H </Mp>L 1 TOTAL Score Based on Ratings 8 6 ZD 2. Category based on SPECIAL CHARACTERISTICS of wetland Score for each function based on three ratings (order of ratings is not important) 9 = H,H,H 8= H,H,M H,H,L H,M,M H,M,L M,M,M H,L,L M,M,L M,L,L L,L,L CHARACTERISTIC CATEGORY Estuarlne Wetland of High Conservation Value Bog Mature Forest Old Growth Forest Coastal Lagoon Interdunal I II III IV^ yr*Z. 1 None of the above Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 1 Wetland name or number Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure f Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet {can be added to map of hydroperiods) Dl.l, D4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H1.2 Ponded depressions Rl.l Boundary of area within 150 ft of the wetland (can be added to another figure) R2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R4.1 Map of the contributing basin R 2.2, Ft 2.3, R 5.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Frinee Wetlands Map of: To answer questions: figure* Cowardin plant classes Ll.l, L4.1, Hl.l, H1.4 Plant cover of trees, shrubs, and herbaceous plants L1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L2.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of fist of TMDLs for WRIA in which unit is found (from web) L3.3 SloDe Wetlands Map of: To answer questions: Figure* Cowardin plant classes H 1.1, H 1.4 Hydroperiods H1.2 Plant cover of dense trees, shrubs, and herbaceous plants S1.3 Plant cover of dense, rigid trees, shrubs, and herbaceous plants ican be added to figure above) S4.1 Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S3.3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 2
Wetland name or number HGM Classification of Wetlands in Western Washington For questions 1-7, the criteria described must apply to the entire unit being rated. If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1^7 apply, and go to Question 8. 1. Are the water levels in the entire unit usually controlled by tides except during floods? <fb - go to^ YES - the wetland class is Tidal Fringe - go to 1.1 1.1 IstnTsalinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. \NO - go tojV YES - The wetland class is Flats tfyaiu^wwand can be classified as a Flats wetland, use the form for Bepressional wetlands. . Does the entire wetland unit meet all of the following criteria? The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; At least 30% of the open water area is deeper than 6.6 ft (2 m). YES - The wedand class is Lake Fringe (Lacustrine Fringe) 2o£s-t*re'entire wetland unit meet all of the following criteria? _The wetland is on a slope (slope can be very gradual], _The water flows through the wedand in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks, .leaves the wetland without being impounded. - go to 5/ YES - The wetland class Is Slope firface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). Does the entire wetland unit meet all of the following criteria? ^the unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, The overbank flooding occurs at least once every 2 years. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 3 Jr Wetland name or number NO - go to6^-^ YES - The wedand class is Riverine EeRiverine unit can contain depressions that are filled with water when the river is not flooding Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during 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 Is the entire wetland unit located in a very flat area-with no obvious depresslotraria no overbank flooding? The unit does not pond surface water more than a few inches. The unit 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 wedand class is Depressional Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. 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. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. 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 unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit HGM class to being rated use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe _—4ake-ErJrige Depressional + Riverine along stream within boundary of depression Depressional1""^"^ Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other Treat as class of freshwater wetland ESTUARINE If you are still unable to determine which of the above criteria apply toyour wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating System for Western WA: 2014 Update RaUng Form - Effective January 1, 2015 4
A-Wetland name or number DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points = 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. t)oints="^ Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points =1 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duf flayer) is true clay or true organic (use NRCS definitionfptes =j^Sb = 0 D 1.3. Characteristics and distribution of oersistent Dlants lEmereent. Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area f points = 5^^ Wetland has persistent, ungrazed, plants > % of area points = 3^ Wetland has persistent, ungrazed plants > Vio of area points = 1 Wetland has persistent, ungrazed plants < Vio °f area points = 0 € D 1.4. Characteristics of seasonal Dondine or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > % total area of wetland points = Area seasonally ponded is > 14 total area of wetland point's = 2 Area seasonally ponded is < J4 total area of wetland points = 0 H Total for D1 Add the points in the boxes above Rating of Site Potential If score is: _*fc-16 = H 6-11 = M 0-5 = L Record the rating on the first page 0 2,0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? ^es =TVlo = 0 1 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? ^Yes =^ No = 0 1 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 (Ro = 0^ a> D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? Source 7y<w; i&tAi. n^*J*~i ("Yes* f^o^O 1 Total for D 2 Add the points in the boxes above 3 Rating of Landscape Potential If score is: or 4 = H lor2 = M 0 = 1 Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is nnthp 303(d) list? Yes = 1 (NO = 0^ o D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? f^Yes =^3ta = 0 ( D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality {answer YES if there is a TMDL for the basin in which the unites found)? Yes=2 No = 0 O Total for D 3 / Add the points in the boxes above i Rating of Value Ifscoreis: 2-4 = H S \ M 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 5 Wetland name or number DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet) points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpdjnts = ^ ^> Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 0 D4.2. Deoth of storaee durinG wet Deriods: Estimate the heiaht of oondtna above the bottom of the outlet For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet pointy = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet C points=j£^ The wetland is a "headwater" wetland 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 (6 in) points = 0 D 4.3, Contribution of the wetland to storaee in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit pcjni£=^l The area of the basin is more than 100 times the area of the unit (points rJL*^ Entire wetland is in the Flats class points = 5 Total for D 4 ^ Add the points in the boxes above < Rating of Site Potential Ifscoreis: 12-16 aH 6-11 = M ^0-5 -1 Record the rating on \he first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? _ D 5.1. Does the wetland receive stormwater discharges? ffes = l^Np)^ 0 t D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? ^Yes=_^>Jo = 0 r D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human iant^isjaUffi.sjidential at >1 restdence/ac, urban, commercial, agriculture, etc.)? vYes = _l*-No = 0 i Total for D 5 Add the points in the boxes above Rating of Landscape Potential Ifscoreis: lor2*M 0 = L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscaoe that has floodine Droblems. Choose the descriotion that best matches conditions around the wetland unit beina rated. Do not add ooints. Choose the hiahest score if more than one condition is met. The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): * Flooding occurs in a sub-basin that is immediately down-gradient of unit. pojnts- 2.— • Surface flooding problems are in a sub-basin farther down-gradient. /^pointsj=J^' Flooding from groundwater is an issue in the sub-basin. points=l The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why points = 0 There are no problems with flooding downstream of the wetland. points = 0 \ D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = SLNo^j£> a* Total for D 6 y Add the points in the boxes above -i— Rating of Value If score is: 2-4 » H = M 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 6
Wetland name or number These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold af% ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. Aquatic bed 4 structures or more: points = 4 l^^JHfretfgent 3 structures: points = 2 £^fj*p^shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 t^Forested (areas where trees have > 30% cover) 1 structure: points = 0 IpLhe unit has a Forested class, check if: ^The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or % ac to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present: points_^_3 •""Seasonally flooded or inundated 3 types present: pajfjt^lP Occasionally flooded or inundated 2 types present: points = 1 '"'Saturated only 1 type present: points = 0 PewTlanentlv flowing stream or river in, or adjacent to, the wetland t^^Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points Z H 1.3. Richness of plant species 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 and you do not have to name the species. Do not Include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points =2 5 -19 species (^points = l3 < 5 species points = 0 i H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, tow, or none. If you have four or more plant classes or three classes and open water, the rating is always high. None = 0 points Low = 1 point Moderate =jLpoiate-*^ are HIGH = 3points •j^/ *"__J!lS/ Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,201S 13 Wetland name or number H 1.5. Special habitat features: Checkthe habitat features that are present in the wetland. The number of checks is the number of points. ~*(&&e, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). -^Standing snags (dbh > 4 in) within the wetland Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) 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 (cut shrubs or trees that have not yet weathered where wood is exposed) At least y* ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) Invasive plants cover less than 25% of the wetland area in every stratum of plants {see H 1.1 for list of strata) Total for H 1 J Add the points in the boxes above // Rating of Site Potential Ifscoreis: 15-18=H _^7-14=M 0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat thatdirectly abuts wetland unit). Calculate: % undisturbed habitat^ + [(% moderate and low intensity land uses)/21 = >f5~ % If total accessible habitat is: > Va (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon po ints = 0 ^ H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: ^JcO % undisturbed habitat C?+ f(%moderate and low intensity land uses)/21 =3^ % Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10-50% and in 1-3 patches points = 2 Undisturbed habitat 10-50% and > 3 patches (^points = ^ Undisturbed habitat < 10% of 1 km Polygon points = 0 1 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use >^p^irTr^=(^2i^ £ 50%of 1 km Polygon is high intensity prJIfrrT^O — 7* Total for H 2 S Add the points in the boxes above - / Rating of Landscape Potential If score is: 4-6 « H 1-3 * M «-^< 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site^K&ets ANY of the following criteria: points = 2 — tt has 3 or more priority habitats within 100 m (see next page) — It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) — tt is mapped as a location for an individual WDFW priority species — tt is a Wetland of High Conservation Value as determined by the Department of Natural Resources — It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any ofjhe criteria above points - 0 Rating of Value Ifscoreis: *^ = H 1 = M 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 14
Wetland name or number WDFW Priority Habitats Priority habitats listed by WPFW {see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympla, Washington. 177 pp. http://wdfw.wa.gov/publications/Q0165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gOv/c:nnservation/phs/list/1 Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat — Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). — Biodiversity Areas and Corridors: Areas of habitat that are relatively Important to various species of native fish and wildlife {full descriptions in WDFW PHSreport). — Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature 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 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests - Stands with average diameters exceeding 21 In (53 cm) 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. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak coorp'onent is important {full descriptions in WDFW PHS report p. 158 -see web link above). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. — Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prafrie {full descriptions in WDFW PHS report p. 161 - see web link above). — Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. — Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. {full descriptions of habitats and the definition of relatively undisturbed are in WDFW report -see web link on previous page). — Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth In soils, rock, ice, or other geological formations and is large enough to contain a human. — Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. /am Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0,15 ~ 2,0 m), composed of basalt, andesite, d/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are> 12 in (30 cm) in diameter at the largest end, and > 20 ft £6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 15 Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands 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-GotoSCl.l Vto= Not an estuarine wetlarjr SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National EstuaryRtiseive, Ndluldl Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? Yes = Category 1 No-Go to SC 1.2 Cat. 1 SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? —The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) —At least X 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 two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Yes = Category 1 No = Category II Cat. 1 Cat II SC2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetland£ja£ltigt>s. Conservation Value? Yes - Go to SC 2.2 Ncf^Go to SC^r SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? """"^ Yes = Category 1 No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? httD://wwwl.dnr.wa.eov/nhD/refdesk/datasearch/wnhDwetlands.pdf Yes - Contact WNHP/W0NR and go to SC 2.4 \No . Not aWH£lZ3 SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value JllU lllled lion their website? Yes = Category 1 No = Not a WHCV Cat. 1 SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on to functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peajsoirmuclcj^that compose 16 in or more of the first 3? in nf the soil nrofile? Ytfj _ fin in [frt Nn-Bntntri) SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucics, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Yes - Go to SC 3.3 No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, fiHn ii li nil i TQIfi cover of plant species listed in Table 4? Yes = Is a Category 1 bog c^o-Go to SC NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that erl?eri6n by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AN D any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover undui LIIL1 Ijnopy? Yes = Is a Category 1 bog \No=lsnotaboj* Cat. 1 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 16
Wetland name or number SC 4.0. Forested Wetlands Does the wetland have at least 1 contiauous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife's forests as priority habitats? If you answer YES you will still need to rate the wetland based on Its functions. — Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. — Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the Yes= Category! 6»^jjot_a^ Cat 1 SC 5.0. Wetlands in Coastal Lagoons 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 or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks during most of the year in at least a portion of the lagoon (needs teTbemeasured near the bottom/^^ Yes - Go to SC S.l \No = Not a wetland In a coastal Ijflpon 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 aggressive, opportunistic plant species (see list of species on p. 100). — 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 Vio ac (4350 ft2) Yes - Category 1 No = Category II Cat. 1 Cat. 11 SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUOJ? // you answer yes you will still need to rate the wetland based on its habitat 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-Copal is: Lands west of SR 115 and SR 109 >^ " Yes - Go to SC 6.1 Nof= not an Interdunal wetland for ratine} SC 6.1. Is the wetland 1 acor larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,Hor H,H,M for the three aspects of function)? Yes = Category 1 No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No - Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes = Category III No = Category IV Cat! Cat II Cat. Ill Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, enter "Not Applicable" on Summary Form Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1,2015 17