HomeMy WebLinkAboutSHR2024-00013 Wetland - SHR Reports - 9/30/2024 Foy 15 fl F-262 601
Wetland o Re rt
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Parcel: 31911-22-00070
407 SE Allen Rd
Shelton, WA 98584
Mason County
Report prepared for:
Bryan Dias
411 SE Allen Rd
Shelton, WA 98584
Prepared by:
Rob Nagel
PO Box 2466
Shelton, WA 98584
rob@arctos-environmental.com
(360) 229-3118
Arc+os Environmental LLG
Project: 2024-WR-005
September 2024
Table of Contents
Tableof Contents............................................................................... i
Listof Figures..................................................................................... i
Overview ...........................................................................................1
Property Description & Project Background........................................2
Wetland Delineation & Rating............................................................3
Summary ...........................................................................................6
References.........................................................................................7
Appendix: Data Forms, Rating Figures, & Site Photos..........................8
List of Figures
Figure 1:Vicinity map of the project. ...........................................................................................................2
Figure 2:Screen capture of the Mason County Resource Ordinance Table 8.52.110(D)showing wetland
buffers for category III wetlands. .................................................................................................4
Figure 3:Screen Capture of Washington State Department of Ecology's Water Quality Atlas with 303d
waterdesignations visible..........................................................................................................24
Figure 4:Screen Capture of Washington State Department of Ecology Water Quality Atlas with TMDL
water quality improvement projects data visible. .....................................................................24
Figure 5:Screen capture of the National Wetland Inventory(NWI)online mapper for this area.............25
Figure 6:Screen capture of the USDA web soil survey for this area..........................................................25
Figure 7:Screen capture of the WA Natural Heritage Program Data Explorer Map for this area (formally
the WA DNR Wetlands of High Conservation Value Map. .........................................................26
Figure 8:Screen capture of the WDFW Priority Habitats and Species web mapper for this area.............26
Figure 9: Map of the land use intensity 1km around the wetland.............................................................27
Figure 10: Map showing the different Cowardin cover classes and hydroperiods within the wetland.The
entire wetland is permanently inundated with water seeping from a groundwater source.The
yellow line is 150ft from the wetland edge for reference and scoring of the functions of the
wetland.......................................................................................................................................28
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Project: 2024-WR-005 September 2024 Arcto5 Environmental LLG
Wetland Report
31911-22-00070
407 SE Allen Rd
Shelton, WA 98584
Overview
This report details the wetland delineation and rating of a small Slope wetland
located within and adjacent to the subject lot in Mason County, Washington. The
wetland is formed primarily from ground water inundating the area at a
frequency and duration during the growing season sufficient to support the
development of hydric soils and the growth of hydrophytic vegetation. The
wetland was rated a Category III wetland based on its score for Functions, with a
Habitat score of 6 and a total score of 16. The buffer for this wetland is 110ft with
a 125ft Structure Setback for moderate-intensity land uses based on the Mason
County Resource Ordinance (Table 8.52.110(D)). The south side of the wetland
was delineated in the field and flagged with bright neon-green flagging. The
buffer should be measured on-site, horizontally from the flagged edge in the field.
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Mason County WA GIS
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Figure 1:Vicinity map of the project.
Property Description & Project Background
The parcel is 1.84 acres in size and located in section 11, Township 19 North,
Range 3 West. The property slopes from the north to the south where Little
Skookum Inlet is located at the bottom of the lot. A slope wetland originates on
the slopes above the subject property and flows south where it meets the access
road and is diverted east. The wetland and ditch contained flowing water during a
site visit on 8/30/2024. The ditch runs east towards an Np stream, but went dry
prior to reaching the stream, with no clear channel making it to the stream.
Typical wetland adapted vegetation growing within the wetland portion of the
property includes western red cedar (Thuja plicato), skunk cabbage (Lysichiton
americanus), horsetail (Equisetum spp.), and western lady fern (Athyrium filix-
femina). The upland vegetation on the property immediately adjacent to the
wetland is characterized mostly by Douglas fir (Pseudotsuga menziesii), big-leaf
maple (Acer macrophyllum), and beaked hazelnut (Corylus cornuta).
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Project: 2024-WR-005 September 2024 Arc+os F_nvironmen+al LLG
Wetland Delineation & Rating
The wetland was delineated using the 1987 U.S. Army Corps of Engineers (USACE)
Wetland Delineation Manual and the Western Mountains, Valleys, and Coast
Region Regional Supplement Version 2.0 (using updated plant and soil
designations from USDA and NRCS). The wetland meets all three required
indicators of hydrophytic vegetation, hydric soils, and hydrology. One pair of
wetland determination sample plots were used to confirm the wetland boundary
findings in the field. The boundary between the wetland and surrounding uplands
is well defined on the south side, where the proposed project is located, by the
transition of the slope meeting a ditch that directs flow from the wetland to the
east. Wetland Determination field data forms are included in the Appendix for
reference.
The wetland being rated is formed from groundwater saturating the wetland area
at a frequency and duration sufficient to support the development of hydric soils
and the growth of hydrophytic vegetation. The entire wetland was rated using the
Slope forms for Water Quality and Hydrologic functions and the Habitat form
used for all Hydrogeomorphic classifications based on the Washington State
Department of Ecology Wetland Rating System (2014 Update, Version 2.0). The
wetland was rated a Category III wetland based on its score for Functions with a
habitat score of 6 and a total score of 16 (see Appendix for rating forms and
figures).
Function Improving Hydrologic Habitat
Water Quality
Site potential H M I H M H M L
Landscape H L H L H M L ~I
Potential
Value M L H M M L Total
Score Based on 6 4 6 16
Ratings
Table 1:Summary of the wetland's scores based on functions.
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Table 8.52.110(D):Width of Buffers Required to Protect Category III Wetlands. Wetlands Scoring
Between 16 and 19 Points on the Wetlands Rating System.
Wetland Characteristics Buffer Widths by Impacts of Proposed Land
Use
Moderate level of ftunction for habitat(score for Low-75 ft
habitat 6-?points) 1\foderate— 110
High—150 ft
Score for habitat 3-5 points Low-40 ft
Moderate—60 ft
High—80 ft
Figure 2:Screen capture of the Mason County Resource Ordinance Table 8.52.110(D)showing wetland buffers for category Ill
wetlands.
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Project: 2024-WR-005 September 2024 Arc+os Environmen+al LLG
Summary
This report details the wetland delineation and rating of a slope wetland located
within and adjacent to a 1.84-acre residential lot and formed from ground water
inundating the wetland area at a frequency and duration sufficient to support the
development of hydric soils and the growth of hydrophytic vegetation. The
wetland meets Category III criteria based on its score for wetland Functions. The
buffer for this wetland is 110ft with a 125ft Structure Setback for moderate-
intensity land uses based on the Mason County Resource Ordinance (Table
8.52.110(D)). The south side of the wetland was delineated and marked in the
field with bright neon-green flagging where it affects the proposed future
development of the subject lot. The wetland buffer should be measured
horizontally from the flagged edge in the field.
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Project: 2024-WR-005 September 2024 Arc+os Environmen+a) L-C,
References
Environmental Laboratory. (1987). "Corps of Engineers Wetlands Delineation Manual,"Technical Report
Y-87-1, U.S. Army Engineer Waterways Experiment Station,Vicksburg, Miss.
Guard,J. (1995). Wetland Plants of Oregon&Washington. Lone Pine Publishing. 240 pp. Edmonton,
Alberta,Canada.
Hruby,T. (2014).Washington State Wetland Rating System for Western Washington: 2014 Update
(Version 2.0). (Publication#23-06-009).Olympia,WA:Washington Department of Ecology.
Munsell Color(Firm). (2009). Munsell soil color charts:with genuine Munsell color chips. Grand Rapids,
MI
Pojar,J.and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast(Revised Edition 2014). Lone Pine
Publishing. 528 pp.Vancouver, British Columbia,Canada.
United States Department of Agriculture, Natural Resources Conservation Service. 2010. Field Indicators
of Hydric Soils in the United States,Version 7.0. L.M.Vasilas, G.W. Hurt, and C.V. Noble (eds.).
USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils.
U.S.Army Corps of Engineers 2020. National Wetland Plant List,version 3.4, http://wetland-
plants.usace.army.mil/U.S. Army Corps of Engineers, Engineer Research and Development
Center Cold Regions Research and Engineering Laboratory, Hanover, NH
U.S.Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland
Delineation Manual:Western Mountains,Valleys,and Coast Region (Version 2.0),ed.J. S.
Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-3.Vicksburg, MS: U.S.Army Engineer
Research and Development Center.
Washington Department of Fish and Wildlife.2008. Priority Habitat and Species List. Olympia,
Washington. 292pp.
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Project: 2024-WR-005 September 2024 Arctos Environmental LLG
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(360) 229-3118
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r •'`� � ,l Map created by: Rob Nagel
Legend
,`� ,�, " r, •_ d. September 6, 2024
' : ; a� a Revison:
_ 1 - Little Skookum Inlet � *t°w '• `
2 - 150ft Conservancy Shoreline Buffer • `' '.' a� r. ;�
3 - 165ft Conservancy Shoreline Structure Setback 4?•e -r-r� ;p�''. ____.__-- y'
4 - Unmapped Non-fish bearing, perennial (Np) Stream • _ •�� :.
5 - 100ft Np Stream Buffer
PV
!__ 6 - 115ft Np Stream Structure Setback
7 - Category III Slope Wetland
C3 8 - 110ft Wetland Buffer 0 20 i 60 80 ft
9 - 125ft Wetland Structure Setback This is not a survey map.
• Wetland Determination Sample Points Measurements are approximate and Scale: 1 = 30'
Approximate Parcel Boundaries must be field verified.
Project: 2024-WR-005 September 2024 Arctos Environmental LLG
Appendix: Data Forms, Rating Figures, & Site Photos
Wetland name or number
RATING SUMMARY — Western Washington
Name of wetland(or ID fi): Date of site visit:
Rated by Trained by Ecology?_Yes_No Date of training_
HGM Class used for rating Wetland has multiple HGM classes?_Y liN
i
NOTE:Form Is not complete wfthout the required figures(figures can be combined).
Source of base aerial photo/map r
OVERALL WETLAND CATEGORY L(based on functions_or special characteristics)
1. Category of wetland based on FUNCTIONS
_____-._Category I-Total score=23-27
Score for each
_Category 11-Total score =20-22 function based
_ Category III-Total score =16-19 on three
ratings
Category IV-Total score=9-15 (order of ratings
is not important)
FUNCTION Improving Hydrologic Habttat
Water 9=H,H,H
R=H,H,M
Quality
Circle the appropriate rotings
Site Potential H M H M L H M 1,' 6=H,M,L
Landscape Potential H `PA L H _ L H �y L 6=M,M,M
Value M L H M H M L %OTAL 5=H,L,L
5=M,M,L
Score Based on j 4=M,L,L
Ratings ------- - --.�_
U 3=L,L,L
2. Category based on SPECIAL CHARACTERISTICS of wetland
CHARACTERISTIC �----_----_-- CATEGORY
Estuarine 1 I I
Wetland of High Conservation Value I
Bog 1
Mature Forest I
Old Growth Forest l
Coastal Lagoon -- 1 11
Interdunal 1 11 III IV
None of the above
Wetland Rating System for Western WA.2014 Update 1
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Aretos Environmental LLG
Wetland name or number
Maps and figures required to answer questions correctly for Western Washington
De ressional Wetlands _
Map oF. questions: i' re k
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 mop of hydropenods) D 1.1,D 4.1 -_
Boundary of area within 150 ft of the wetland(can be added to gather)iure) 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 H 2.1,H 2.2,H 2.3
polygons for accessible habitat and total habitat _
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) D 3.3
Riverine Wetlands
map of: To answer R
Cowardin plant classes H 1.1,H 1.4
Hydroperiods--- - ------ H 1.2
Ponded depressions R 1.1
Boundary of area within 150 ft of the wetland(can be added to another figure) R 2.4
Plant cover of veer,shrubs,and herbaceous plants _ _ R 1.2,R 4.2
Width of unit vs.width of stream(con be added to another frqure) R 4.1
Map of the contributing basin R 2.2,R 2.3,R 5.2
1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1,H 2.2.H 2.3
polygons for accessible habitat and total habitat
Screen capture of map of 303(d)listed waters in basin(from Ecology website) R 3.1 _
Screen capture of list of TMDIs for WRIA in which unit is found(from web) R 3.2,R 3.3
Lake Fringe Wetlands _
Map of To answer questio Figure B
Cowardin plant classes L 1.1,L 4.1,H 1.1,H 1-4
Plant cover of trees,shrubs,and herbaceous plants L 1.2
Boundary of area within 150 ft of the wetland(can be added to onather ure) L 2.2
1 km Polygon.Area that extends 1 km from entire wetland edge including H 2.1,H 2.2,H 2.3
polygons for accessible habitat and total habitat
Screen capture of map of 303(d)listed waters in basin(from Ecology website) L 3.1,L 3.2
Screen ca lure of list of TMDLs for WRIA in which unit is found(from web) L 3.3
Slo2g Wetlands
Map of: To answer f re•
Cowardin plant classes H 1.1,H 1.4
Hydroperiods H 1.2 1 V
Plant cover of dense trees,shrubs.and herbaceous plants 513
Plant cover of dense,rigid trees,shrubs,and herbaceous plants 5 4.1
(can be added to ure above!_
Boundary of 150 ft buffer fcan be added to another figure) s 2.1,S S.1
1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1,H 2.2,H 2.3
polygons for accessible habitat and total habitat 417
Screen captureof map of 303(d)listed waters in basin(from Ecology website) S 3.1,5 3.2
Screen capture of list of TMDLs for WRIA in which unit is found(from web)
Wetland Rating System for Western WA:2014 update 2
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Rretos Environmental LLG
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?
NO-go to 2 YES-the wetland class is Tidal Fringe-go to 1.1
1.1 Is the salinity 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 to 3 YES-The wetland class is Flats
If your wetland can be classified as a Flats wetland,use the form for Depressional wetlands.
3. Does the 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).
NO-go to 4 YES-The wetland class is take Fringe(Lacustrine Fringe)
4. Does the 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 wetland in one direction(unidirectional)and usually comes from seeps.
It may flow subsurface,as sheet flow,or in a swale without distinct banks,
_The water leaves the wetland without being impounded.
NO-go to 5 YES-The wetland class is Slope
NOTE:Surface 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).
Wetland Rating System for Western WA:2014 Update 3
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Arc-to-, Environwien+al LLG
r
Wetland name or number
5. 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.
NO—go to 6 YES—The wetland class is Riverine
NOTE:The Riverine unit can contain depressions that are filled with water when the river is not flooding
6. 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
7. Is the entire wetland unit located in a very flat area with no obvious depression and 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 wetland class is Depressional
S. 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 Lake Fringe
Depressional+Riverine along stream Depressional
within boundary of depression
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 to your 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 4
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Arc+os Environmental LLG
Wetland name or number
------- SLOPE WETLANDS ---- ----
Water Quality Functions - Indicators that the site functions to improve water quality
S 1.0.Does the site have the potential to improve water quality?
5 1.1.Characteristics of the average slope of the wetland.(A 1%slope has a 1 ft vertical change in elevation for every
100 h of horizontal distance.)
Slope is 1%or less points=3
Slope is>1%-2% points=2
Slope is>2%-5% points=1
Slope is greater than 5% points=0
S 1.2.The soil 2 in.below the surface(or duff laver)is true clay or true organic(use NRCS definitions): Yes=3 No=0
S 1.3.Characteristics of the plants in the wetland that trap sediments and pollutants:
Choose the points appropriate for the description that best fits the plants in the wetland.Dense means you
have trouble seeing the soil surface(>75%coved,and uncut means not grazed or mowed,and plants are
higher than 6in.
Dense,uncut,herbaceous plants>90%of the wetland area points=6
Dense,uncut,herbaceous plants>h of area points=3
Dense,woody,plants>is of area points=2
Dense,uncut,herbaceous plants>X of area points=I
Does not meet any of the criteria above for plants points=0
Total for S 1 Add the points in the boxes above
Rating of Site Potential If score is:_12=H _6-11=M -__0-5=L Record the rating on the first page
S 2.0,Does the landscape have the potential to support the water quality function of the site?
S 2.1.Is>10%of the area within 150 It on the uphill side of the wetland in land uses that generate pollutants)
Yes=1 No= 0
S 2.2.Are there other sources of pollutants coming into the wetland that are not listed in question 5 2.1?
Other sources Yes=1 No=0
Tota:for S 2 Add the points in the boxes above J
Rating of Landscape Potential If score is:_1-2-M _0-L Record the rating on the first page
S 3.0.is the water quality improvement provided by the site valuable to society?
S 3.1-Does the wetland discharge directly(i.e.,within 1 mi)to a stream,river,lake.or marine water that is on the
303(d)list? Yes=1 No=0 ram,
5 3.2.Is the wetland in a basin or sub basin where water quality is an issue'(At least one aquatic resource in the basin I
is on the 303(d)list.) Yes=1 No=0
S 3.3.Has the site been identified in a watershed or local plan as important for maintaining water quality?(Answer
YES A there is a TMDL in development or in effect for the basin in which unit is found.) Yes=2 No=0 `-
Total for S 3 Add the points in the boxes above
Rating of Value If score,s:_2.4=H _1=M _0=L Record the rating on the first page
Wetland Rating System for Western WA:2014 Update 11
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Rrc+os Environrnen+al LLG
bltetlaml Warne o�run,t�e-r
-------�------�— SLOPE WETLANDS --
Hydrologic Functions indicators that the site functions to reduce flooding and stream erosion
S 4 U Does the site have the potential to reduce flooding and stream erosion?
S 4.1.Characteristics of plants that reduce the velocity of surface flows during storms:Choose the points appropriate
for the desorption that best fits conditions in the wetland.Stems of plants should be thick enough(usually>r(x
in),or dense enough,to remain erect during surface flows.
Dense,uncut,rigid plants cover>90%of the area of the wetland points=1
All other conditions points=0
Rating of Site Potential If score is:_I=M __0=L Record the rating on the first page
5 5.0.Does the landscape have the potential to support the hydrologic functions of the site?
S 5 1 Is more than 2S%of the area within 150 It upstope of wetland in land uses or cover that generate excess '
surface runoff? Yes=1 No=0
Rating of Landscape Potential If score is:_L1=M _O=L Record the rating on the first page
S 6.0.Are the hydrologic functions provided by the site valuable to society?
S 6.1 Distance to the nearest areas downstream that have flooding problems:
The sub-basin immediately downgradient of site has flooding problems that result in damage to human or
natural resources(eg.,houses or salmon redds) points=2
Surface flooding problems are in a sub-basin farther downgradient points=1 `
No flooding problems anywhere downstream points=0
S 62,Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan?
Yes=2 No=O --
Total for S 6 Add the points in the boxes above
Rating of Value If score is:_2.4=H _-1=M _,_O=L Record the rating on the first page
NOTES and FIELD OBSERVATIONS:
Wetland Rating System for Western WA:2014 Update 12
Rating Form-Version 2,July 2023
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Project: 2024-WR-005 September 2024 Antos Environmental LLG
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 30 patches may be combined for each class to meet the threshold
of Y.ac if the unit is at least 2.5 ac,or more than 10%of the unit if it is smaller than 2.5 ac.
__Aquatic bed 4 structures or more:points=4
_Emergent 3 structures:points=2
_—Scrub-shrub(areas where shrubs have>30%cover) 2 structures:points=I
___Forested(areas where trees have>30%cover) 1 structure:points=0
If the unit has a Forested class,check if
The Forested class has 3 out of 5 strata(canopy,sub canopy,shrubs,herbaceous,moss/groundcover)that
each cover 20%within the Forested polygon
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 if the unit is<2.5 ac,or h ac if the unit is at least 2.5 ac to count(see tent for
descriptions of hydroperiods).
`Permanently flooded or inundated 4 or more types present:points=3
__Seasonally flooded or inundated 3 types present:points=2
_Occasionally flooded or inundated 2 types present:points=1
_Saturated only 1 type present:points=0
_Permanently flowing stream or river in,or adjacent to,the wetland
_Intermittently or 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
Count the number of plant species in the wetland that cover at least 10 fY.
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 milloil,reed canarygrass,purple loosestrife,Canada thistle
If you counted:>19 species points=2
5 19 species points=1
<5 species points=0
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.low,or none.if you
have four or more plant classes or three classes and open water,the rating is always high.
(D (:!D (=*) (0�
None=0 oo--^ts low-1 point Moderate=2 points
4J three diagrams
m Ins row
a-e High=3 po:nis
Wetland Rating System for Western WA:2014 Update 13
Rating Form-Version 2,July 2023
14
Project: 2024-WR-005 September 2024 Rrctos Environmental LLG
Wetland name or number
H 1.5.Special habitat features:
Check the habitat features that are present in the wetland.The number of checks is the number of points.
Large,downed,woody debris within the wetland 1>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 emend at least 3.3 ft(1 m)
over open water or a stream(or ditch)in,or contiguous with the wetland,for at least 33 it(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%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 I A above for the
list of strata and H 1.5 in the manual for the list of a ressive plant species)
Total for H 1 Add the points in the boxes above
Rating of She Potential If score is 15-I8=H __7-14=M !0-6=L Record the rating an 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 polygons accessible from the wetland.
Calculate:%relatively undisturbed habitat_♦[(%moderate and low intensity land uses)/21_- %
Total accessible habitat is:
>'/.(33.3%)of 1 km Polygon points=3
20-33%of 1 km Polygon points=2
30-19%of 1 km Polygon points=1
<10%of 1 km Polygon points=0
H 2.2.Total habitat in I km Polygon around the wetland.
Calculate:%relatively undisturbed habitat_♦[(%moderate and law intensity land uses)/2[_-_^_—%
Total habitat>50%of Polygon points=3
Total habitat 10-50%and in 1 3 patches points=2
Total habitat I0-50%and>3 patches points=1 --
Total habitat<10%of 1 km Polygon points=0
H 2.3 Land use intensity in I km Polygon:
>50%of 1 km Polygon is high intensity land use points=(-2)
5 50%of 1 km Polygon is high intensity points=0
Total for H 2 Add the points in the boxes above
Rating of Landscape Potential if score is:_4-6=H __1-3=M _<I=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 meets ANY of the following criteria: points=2
— It has 3 or more Priority Habitats within 100 m(see next page)
— H provides habitat for Threatened or Endangered species(any plant or animal on the state or federal lists)
— It is mapped as a location for an individual WDFW Priority Species
— It is a Wetland of High Conservation Value as determined by the Department of Natural Resources data
— 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 in points=1
Site does not meet an of the criteria above points=0
Rating of Value If score is: 2=H _3=M _0=L Record the rating on the tint page
Wetland Rating System for Western WAS 2014 Update 14
Rating Form-Verson 2.luly 2023
15
Project: 2024-WR-005 September 2024 Arc+os Environmental LLG
Wetland name or number
WDFW Priority Habitats
See complete descriptions of Priority Habitats listed by WDFW,and the counties in which they can be
found,in:Washington Department of Fish and Wildlife.2008(current year,as revised).Priority Habitat and
Species List.133 This list was updated for consistency with guidance from WDFW.
This question is independent of the land use between the wetland unit and the Priority Habitat.All vegetated
wetlands are by definition a Priority Habitat but are not included in this list because they are addressed by this
rating system.
Count how many of the following Priority Habitats are within 330 ft(100 m)of the wetland unit:
—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.This habitat automatically counts if mapped on the PHS online map within 100m
of the wetland.If not mapped,a determination can be made in the field.
—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.
—Fresh Deepwater:Lands permanently flooded with freshwater,including environments where surface
water is permanent and often deep,so that water,rather than air,is the principal medium within which
the dominant organisms live.Substrate does not support emergent vegetation.Do not select if Instream
habitat is also present,or if the entire Deepwater feature is included in the wetland unit being rated
(such as a pond with a vegetated fringe).
—Herbaceous Balds:Variable size patches of grass and(orbs on shallow soils over bedrock.
—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.Do not select if
Fresh Deepwater habitat is also present.
—Nearshore:Relatively undisturbed nearshore habitats.These include Coastal Nearshore,Open Coast
Nearshore,and Puget Sound Nearshore.
—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)diameter at breast height(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.
'31 httpJ/wdfw.wa.gov/publications/00165/wdfw00165.pdf
Wetland Rating System for Western WA:2014 Update 15
Rating Form-Version 2,July 2023
16
Project: 2024-WR-005 September 2024 Arctos Environmental LLG
Wetland name or number
—Oregon White Oak:Woodland stands of pure oak or oak/conifer associations where canopy coverage of
the oak component is important.For single oaks or oak stands<0.4 ha in urban areas,V._Dc W',
Management Recommendations for Oregon White Oakt;4 provides more detail for determining if they
are Priority Habitats
—Riparian:The area adjacent to freshwater aquatic systems with flowing or standing water that contains
elements of both aquatic and terrestrial ecosystems which mutually influence each other.
—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.
—Talus:Homogenous areas of rock rubble ranging in average site 0.5-6.5 ft(0.15-2.0 m),composed of
basalt,andesite,and/or sedimentary rock,including riprap slides and mine tailings.May be associated
with cliffs.
—Westside Prairies:Herbaceous,non-forested plant communities that can either take the form of a dry
prairie or a wet prairie.
t31 https://wdfw.wa.gov/publications/00030/wdfw00030.pdf
wetland Rating System for Western WA:2014 Update 16
Rating Form—Version 2,July 2023
17
Project: 2024-WR-005 September 2024 Arc+os Environmental LLG
Wetland name or number
_ CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Wet6;idTypei---- — -- Category
Check off any criteria that apply to the werbnd.Grrie the cote when the o rrote crrterro ore met.
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-Go to SC 1.1 No=Not an estuarine wetland
SC 1.1.Is the wetland within a National Wildlife Refuge,National Park,National Estuary Reserve,Natural Area
Preserve,State Park or Educational,Environmental,or Scientific Reserve designated under WAC 332-30-151?
Yes=Category i No-Go to SC 1.2 Cat.I
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 chapter 4.8 in the Cat.I
manual.
—At least ki of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or un-grazed or un-
mowed grassland. Cat.11
—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 It
SC 2.0.Wetlands of High Conservation Value(WHCV)
SC 21.Does the wetland overlap with any known or historical rare plant or rare&high-quality ecosystem polygons
on the WNHP Cat3 t.p!o-er?"s Yes=Category I No-Go to SC 2.2 Cat.I
SC 2.2.Does the wetland have a rare plant species,rare ecosystem(e.g.,plant community),or high-qUa y common
ecosystem that may qualify the site as a WHCV?Contact WNHP for resources to help determine the
presence of these elements. --
Yes-Submit data to WA Natural Ne__:age P•ottram�r_'ettr i rljt.on,"`Go to SC 2.3 No=Not a WHCV
SC 2.3.Did WNHP review the site within 30 days and determine that it has a rare plant or ecosystem that meets their
criteria?
Yes=Category 1 No=Not a WHCV
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 your answer YES,you wiN stfN need to rate the wetiond based on its Junctions.
SC 3.1.Does an area within the wetland unit have organic soil horizons,either peats or mucks,that Compose 16in:-
or more of the first 32 in.of the soil profile? Yes-Go to SC 3.3 No-Go to SC 3.2
SC 12.Does an area within the wetland unit have organic soils,either peats or mucks,that are less Mini f io:deep
over bedrock,or an impermeable hardpan such as day or volcanic ash,or that are floating on lop of-a lake or
pond? Yes-Go to SC 3.3 No=Not a bog
SC 3.3.Does an area with peats or mucks have more than 70%cover of mosses at ground level,AND at Ieast a 30%'
cover of plant species listed in Table 4? Yes=Category 1 bog No-Go to SC 3.4
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 in.deep.If the pH is less than 5.0 and
the plant species in Table 4 are present,the wetland is a bog. Cat.I
SC 3.4.Is an area with peats or mucks forested p 30%covert with Sitka spruce,subalpine fir,western red cedar,
western hemlock,lodgepole pine,quaking aspen.Engelmann spruce,or western white pine.AND any of the
species(or combination of species)listed in Table 4 provide more than 30%of the cover under the canopy?
Yes=Category 1 bog No=Not a bog
1)s https://www.dnr.wa.gov/NHPdata
n6 https://www.dnr-wa.gov/Pubiications/amp_nh_sighting_form.pdf
Wetland Rating System for Western WA:2014 Update 17
Rating form-Version 2,July 2023
18
Project: 2024-WR-005 September 2024 Arc-to-, Environmental LLG
Wetland name or number
SC 4.0.Forested Wetlands
Ines the wetland have at least I contiguous acre of forest that meets one of these criteria for the WA
Department of Fish and Wiidlife'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 multi4ayered
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 Idbh)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
species that make up the canopy have an average diameter(dbh)exceeding 21 in.(53 cm).
Yes=Category 1 ..No=Not a forested wetland for this section Cat.I
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
-----The lagoon in which the wetland is located contains ponded water that is saline or brackish(>0.5 poll
during most of the year in at least a portion of the lagoon(needs to be measured near the bottom)
--The lagoon retains some of its surface water at low tide during spring tides
Yes-Go to SC SS No_Not a wetland in a coastal lagoon
Cat.I
SC 5.1.Does the wetland meet all of the following three conditions?
—The wetland is relatively undisturbed Ihas no diking,ditching,filling,cultivation,grazing),and has less
than 201Y.cover of aggressive,opportunistic plant species(see list of species in H 1.5 in the manual).
—At least%of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or ungrazed or un- Cat.11
mowed grassland.
—The wetland is larger than-/,.,ac(4350 ft�)
Yes=Category I No=Category H
SC 6.0.Interdunal Wetlands
Is the wetland west of the 1889 line also called the Western Boundary of Upland Ownership or WBUO)?If
you onswer YES,you will still need to rote 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 Cat]
— Ocean Shores-Copalis:lands west of SR 115 and SR 109 and Ocear Shores Blvd SW,including lands west
of E.Oceans Shores Blvd SW.
Yes-Go to SC 6.1 No-Not an Interdunal wettand for rating
Cat.II
SC 6.1.Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form(rates H,H,H or H,H.M
for the three aspects of function)? Yes=Category I No-Go to SC 6.2
SC 6.2.is the wetland 1 ac or larger,or is it in a mosaic of wetlands trial is I ac or larger? Cat,III
Yes=Category n 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.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 18
Rating Form-Version 2,July 2023
19
Project: 2024-WR-005 September 2024 Arc+os Environmental LLG
WETLAND DETERMINATION DATA FORM-Western Mountains,Valleys,and Coast Region
Pr ct/See_ - C Count
� _.-__..---_-_-- aYr y —-----Sampling Date.
Applrcantl0wner _ State Sampling PoxM
I ,•,,..
Investigator(s) � ----_..._. Section.Townshw.Range-
Landfonn(hillslope,terrace,etc) Local re6et icuncava convex,none).
Sutxrpion(LRR)- __tat=_ Long --._ Dafium
Sat Map Lind Name 5 ' _--- `NWI,lawfi ahon _
Are aknatic±hydrologic conoroons on the late typical for this time of year?Yes No—(If no.explain n Remarks)
Are Vegetatim_Sort or Hydrology_sigrvUantty disturbed? Are-Normal Circumstances-present? Yes_No_
Are Vegetation_.Sint_.or Hydrology_naturally problematic' (t needed.explain any answers in Remarks)
rSUMMARY
—OF—FINDINGS-Attach site map showing sampling point locations,transects,important features,etc.
Hydrophl yec Vegetation Present' Yes No_
Hydnc Soil Present? Yes T No M&a Sampkid Area
Wedand Hydrology Present'' Yes No +w@Mn a wetland? Yes No
Remarke
i
VEGETATION-Use scientific names of plants.
Absolute Dominant Indicator Dominance Test worluheet:
Tree Stratum (Plot sae x coven Statist Number of Dominant Species
t _ That Are OBL FACW,or FAC (A)
!2 j
Total Number of Dominant
3 Speces Aaoss All Strata (8)
-L •Trial Cover Percent of Dominant Speces
That Are OBL,FACW.or PAC (A•'B)
Saatx>/Shrub SlraNm (Plot site S
t Prwabnce Infix wwkshaet ,
I Total%Cover of Multiply by
2.
3— - OBL speces x i•
FACW speoes x 2-
4.
FAC species x 3
5
----- FACU species x 4_
•Tool Cover
Herb Stratum (Plot S-ze 1 UPL species x 5=
t '�`i+ Column Totals (A) (81
z
Prevalence Index =B:A=
3 Hydrophyfic Vegetanion InElcaton:
a —�— -- i_ 1-Rapid Test for Hydropm W Visgetaffon
5 -- _2 Dcmnarn Test s>50%
6 _ _3-Prevalence Index s S3 0
7
_4-Morphubg+cal Adaptations'(Prowfe supporting
6. data in Remarks or on a separate sheen
g _5-Wenand Non Vascular Plants
10 _Problematx.Hydrophytic Vegetation (Explain)
1 I 'Inchutoes of hytl i sod and wetland hydrology must
=Total Cover be present unless disturbed or problematic
Woodv Vine Stratum (Plot we._ 1 --
t Nydnalli'llrytic
2 _ VegataWn
=Total Corer Prment? Yes— No_
%Bare Ground in Herb Stratum
Remarks
US Army Corps of Engineers Westem Mountains Valleys.and Coast-Version 2 0
20
Project: 2024-WR-005 September 2024 Arc+o, Environrmn+n1 LLG
SOIL Sampling Point
Profile Description: (Describe to the depth needed to document the indkator or confirm the absence of indicators.) v-
Depth Matrix Redox Features
(inures) Color Imorst)_ _ Color Imoisi) Tice Loc Texture Remarks
'T -C=Conoentra4m.D=De)etion.RM=Reduced Matrix.CS=Covered or Coated Sand Crams Location. PL=Pore Lining M-Matrix.
HydAc 808 bWlcaaors:(Applicable to all LRRs,unless otherwba noted.) IndicatorsbM for Prortufk Hydric Sofia
_INstoed(At) _Sandy Redox(S5) 2 cm Muck(A 10)
_Histk Epipedon(AI) T Stripped Matrix(S6) Red Parer#Material(TF2)
_With HAMIC(A3) r[Loamy Mucky Mineral(F1)(except MLRA 1) _Very Shallow Dark Surface ITF12)
_Hydrogen Sulfide(A4) _Loamy Gleyed Matm(F2) _Other(Exptam m Remarks)
_Depleted Below Dark Surface(A 11) _Depleted Matrix(F3)
_Thick Dark Surface(A121 _Redox Dark Surface(F6) Ynd.c tors of hydropnyhc,egetahon and
_Sandy Mucky lhnersl(Sit _Deplefed Dark Surface(F 7) wetland hydrology must be present
_Sandy Ckyed Matrix(S4) Redox Depressions(F8) unless disturbed or problematic.
RMtrkBve Layer(If prsseet): — —v_�------- -
Type
Depth(inches) Hydrlc soil Present? Yes No_
Rertwrks
HYDROLOGY
Weiland Hydrology Indicators: .
PmVry tnOrcators(mrnmxlm of one mouthed.dledt as that apply) Secondary Indicators(2 or mom rrSdrgedl
_ Surface Water,Al) _Water-Starred Leaves(89)(except _Water-Stained Leases(89)('AURA 1.2,
77 High Water Table(A2i MLRA 1,2,4A,and 48) 4A,and 48)
_Sah"bon IA3) _Salt Crust IS11) _Drainage Patterns(B10)
_Water Marks(Bi) _Aquatic Inverteorates(813) _Dry-Season Water Table(C2)
_ Sediment Deposits(02) _Hydrogen Surfide Odor LC I) _Safuration Vrs+tw on Aerial Imagery(C9)
_Drift Deposits(B3) _Owlized Rhizospheres along Lrvmg Roots(C3) _Ceonrorptyc Position(02)
_Algal Mat or Crust(B4) _Presence of Reduced Iron(C4) _Shallow!qu#ard(03)
_Iron Deposits(B5) _Recent tron Redugron m TNled Soils(C61 _FAC Neutral Test(D5)
_Surface Sod Cracks(86) _Shred or Stressed Palms(DI)(LRR A; _Raised Ant MaarOs(D6)ILRR A)
Inundation Visible on Aerial Imagery(87) _Omer(Explain in Remarks; _Frost Heave Hur.,mocks(D7)
Sparsely Vegetated Concave Surface(B8)
FWW Observations:
Surface Water Present's Yes_No Depth(inches)
Water Table Present' Yes No__Depth(inches)
Saturation Present' Yes No_ Depth)mches) Welland Hydrology Present' Yea No
dudes capillary hinge)_ _ —
Describe Recorded Data(saeam gauge,morktorng well.aerial photos prevwus mspecsons).d i-d-able --- -
US Army Corps of Engineers Western Mountains Valleys and Coast-Version 2.0
21
Project: 2024-WR-005 September 2024 Arc-tor, Environmental LLG
01
WETLAND DETERMINATION DATA FORM-Western Mountains,Valleys,and Coast Region
ProieNSrte CrtYrCounty Sampling Date
Applicantl0viner _ State Sampling Point
Investgator(s) I' Secbon.Township.Range
r
Landfonn ihieslope terrace etc 1 Local relief(concave.convex,none). Slope!%)
Subregion(LRR). Lat I..,I) %- (c LON Datum
Soil Map Unit Name _ i ! _-NNA classification.
Ate climatic i hydrologic condWrts on the ate typical for this time of year?Yes_No_(11 no.explain in Remarks)
Are Vegetation_Sod—or Hydrology_significantly disturbed? Are'Nonmal Circi)mstances'present> yes_No
Are Vegetation_Sod_or Hydrology—ra"atly problematic ill needed explain any answers m Remarks)
(SUMMARY OF FINDINGS-Attach site map showing sampling point locations,transects,important features,etc.
Hydrophybc Vegetation PresenO Yes No_—
Hydnc Sod Presem? Yes No_ Is the SampW Area
Wetland Hydrology Present' Yes No within a Wenend? Yee No ti
Remarks �---
VEGETATION-Use scientific names of plants.
Absolute DommAnt Indicator Dominance Test worksheet
Tree Stratum (Plot we Absolute
Corer Speoes Status Number of Domkrant Species
1 That Are OBL FACW,or FAC (A)
2
Total Number of Dominant
3.— Species 4uo55 All Strata (B)
4.
Percent of Dominant Species
=Total Cover That Are 08L.FACW or FAC
SaoMa/Shrub Sratum (plot we 1 (A�) t
1 :� PrevaMnu InWx worksDaet:
(2 Total%Cover of MLA.1v iw
3, 06L species x 1=
4_— — -- FACW species x 2=
5 FAC species x 3=
-�--- Total Cover FACU species x 4=
Herb Stratum (Plot sue. 1 UPL species x 5=
Column Totals (A) 18)
2' Pnevalence Irde._&'A=
3 Hydrophytic Vpefation irldicelore:
4 _t-Rapid-1esl for HydrophybC Vegetation
5 _2.Dominance Test is>50%
5 _3-Prevalence Index,s s3.0'
? _4-Morphological Adaptations(Provide wpponing
9 data in Remarks or on a separate street)
g. _5-Wetland Non-Vasanaf Plants
10. _Problematic Hydmphytrc Vegetation'(Explain)
11 'Indicators of hydnc sod am wetland hydrology must
-Tow Cover be presen!unless disturbed or probiematic
j)tg fv Vine Stratum (Plot we ) I -----
1. Hydrophytic
2. Vegetation j
Total Cover PraseM? Yes_ No
Yr Bare Ground in Herb Stratum -�
Remarks
j
US Army Corps of Engineers Westem Mountarris Valleys.and Coast-Version 2 0
,f
22
Project: 2024-WR-005 September 2024 Rrctos Environmental LLG
SOIL Sampkng Pant.
Profs Description;(Oaseribe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matmr Redox Features
li-hes) Cob,(moist) Color(moist) %_—_ Tvce� spy_ teztura_ Remancs
'Tygte C-Coneerdrahon.D=Deplefion_RM=Reduced Matrix.CS=Covered or Coated Sand Grams_ -Locehon PL=Pore Law M=Matrx
Hydric SoP kWicaOms:(MW(csbio to as LRRe,unlass otherwiee mud.) Indicators for Problemart c Hydric Soft':
_Histosol(All _Sandy Redox(S5) _2 an Muck(A10)
_ffisue Epgmdnn IA2) _Stnpped Matrix(S6) _Red Parent Material(TF2)
_Black Hrstn^(A3) _Loamy Mucky Wherai IF 1)(a tcep t MLRA 1) _Very Shallow Dark Surface(TF 12)
_Hydtogen Suede(All) _Loamy Gleyed Matrx(F2) _Other(Explain in Remarks)
_Depleted Below Dark Surface(AT 1) _Depleted Matrix(F3)
_Thidt Dark Surface(A 12) _Redox Dark Surface(F6) 'indicators of hydrop ybc vegetatwn and
_Sardy Mucky Mineral(SIT _Depleted Dark Surface(F7) wetland hydrology must oe presets.
Sandy Cloyed Matrix(S4) _Redox Depressions(FB) unless disturbed or probiemaoc
Restrictive Loy*,(it pnn@rA): —'—
Type
Dept)(mcheS) Hydrk Sod PRtamt Yee_ No
Remarks
HYDROLOGY
Wetland Hydrology Indicators:
Primary Ingicalors(mmimyn_if one reoueed check ore that apply) _ Secondary Indrealm lit or more reorzaedl
_Surface Water;Al) _.Water Stained Leaves(89)(except _Water.Shame)Leaves 091(W-FtA 1.2.
—Ffgh Water Table I0,2) MLRA 1,2,eA,and 48) AA and 48)
_SahaMron(A3) _SM Gust IS 11) _oramage Patterns I810t
Water Marks(81) _Aquatic Invertebrates IS 13) _Dry Season Water 1-able IC2)
Sediment Deposits(B2) _hydrogen Sulfide Odor(,,1) Saturatro Visible on Aerial Imagery(M
Droll Deposits 183) _Ox-d—d Rhizospheres along Living Roots(C3) _Geomorphic Position(D2)
Algal Mat or Crust(Bit) Presence or Reduced Iron(Ca) _Shallow Aqudam(03)
_Iron Deposits(85� _Recent Iron Red-l—in Tilled Soils(C6) _FAC Neutral Test(D51
_Surface Sod Cracks(86) _Stunted or Sbessed Plants(Dl l(LRR A) _Raised Ant Mounds(D6)(LRR A)
_Inundation Visible on Aenal Imagery iB7) Other(Explain in Remarks) _ Frost-Heave Hummocks(D7)
Sparsely Vegetated Corycave Surface(BO)
Field OWervatbro: _
Surface Waken Present? Yes_No Depth(inches)
Water Table Present? Yes_No_Depth(mcles). \
Saturat—Present? Yes_No_Dept(arches): Welland Hydrology Present? Yee_ No
Imeudes w II I
Desaibe Recorded Data(stream pangs.rnordaerq well.aerial pnolos,previous inspections).it avaaable
Remarks
US Array Corps of Ergxreers Western Mountains Valleys.and Coast Version 2.0
23
Project: 2024-WR-005 September 2024 Arc-to-, Environmental LLG
ECOLOGY Water Quality Atlas Map
Leyead Tads Nan< O AGQRertave Map Data OS— (D AE
^ Assessed
V
®
CM
r •l,.+.sl'r.'a. �E ..,u Ev E- :�E.,iVi n,VSGS MET✓\�,W E>:,ED+ I '..�.M Y,b.
10% (AYY�MMk!/BrSIIMet' n
Mrs� "Q»arrn "--�� L � ` IV L7 V . q rs� 0./
Figure 3:Screen Capture of Washington State Department of Ecology's Water Quality Atlas with 303d water designations
visible.
DE.ATMLMt C�
ECOLOGY Water Quality Atlas Map
L"-d FlFBr Z— Tads {n`Ncane $AQ6Rer^gve,%W Dm {p M}Map%op—
T C x _ Mail
Uwe CW-V� awe
�turn AL(vaw0
'+6.AOPwatl i �e.n,nre.sr,a Vema.,W.a
ha
5'..AµaowC I $ McvrP..i wus. raeMPm.
ARP-ApgWpl � `� ( wuab Oa,O.wi .i�pwuM1F.'.Tl+r„tr+.la WrLY�.r<.� 3
I I n,ew., bft
f TMDE-M Dr,ngxron� � .won na
CTI MIh,+iW+,
Mr—bpm
/ fn"
If!
Data vansPa,a.`q � tpV, NMaG����IPeeMMs,
C ,,... ck.:.r L a G d 0a a o 0
Figure 4:Screen Capture of Washington State Department of Ecology Water Quality Atlas with TMDL water quality
improvement projects data visible.
24
Project: 2024-WR-005 September 2024 Rrctos Environmental LLG
r CPO
a r
's
a o K? is ■ ^ . a.o °ice.•
Figure 5:Screen capture of the National Wetland Inventory(NWI)online mapper for this area.
Mw ai iraneu(AO17 ( k I�.•'�l t+ +t
,�„ w SpNeYrf O
enntJw r ,wJ
i I-
NaSon CeWny,We16kWM(WA6a5)
Maven County.Washington(WA645) 6 M1fri:�.
Nap Aares vcneat a �/� �
IInT Nip IMiI Neese � a01 -
SYe4e1 a0i
C. Cloquallum slit 1.S 2.6",
loam.Modentely
shallow arer
cemented ell,5 to
1 S perch[Hopes
Gk C--gnretly 10.4 17.6%
sally loam,S to
15 percent slopes
St Shelton WVVelly 41.0 69.6% 4
sardv'—,5 to I
15--t slopes
TOtals for Ara of S0.9 100.0%
Interert
Q iaa," . ` ` 0 V ■ ^ @'�• avarrs i
Figure 6:Screen capture of the USDA web soil survey for this area.
25
Project: 2024-WR-005 September 2024 Arc+o, Environmen+al LLG
Usa.Cw�da laws tpa�d Locaucns Cowdinxal �Po4maht Filer SaMn Orw PMt MIs IIaOrrPas
Ngn Gus^s1 Ec*Ynwis"...n
N,avrM Rare Bans and Rwei ffi• ..
Hp�QuaMr Ecasyawna
Rele,Fnc.Yaxxd NNalaMs JI• fjj
S•M YMOI,YIaWan 6. ..
Cs+ay Ta hrc.M iG
INAPT /'
CanenxanAmffNRCAI �' `^"1„�y � .+�
4c,aaenrn4 ar• 1 �I�
55
' M��3+RNY OG ,. - .Ixa..tue gar-.4 ena Ecosla:_��r Ketr•e�:e a:arw.a wedaw ._ .,, � �°
DNR Mxuged Sulaae lands b1 F G EI ENT TIPS ... —E I TYPE 6 ... NAME UiEGp!P'
Surface Truµ � • EO�G 1 ��� SC�ENi1FK NAME P ��• COMMON NAME
wAONR :..,•rasa N ba fi - L162 aactr,a xe^da•w.M^.. Nadad-s ragaon —E-LANI tlxancY +asc.oar Plan:
Aber laws m ... L�TT w.ye.m rul,an�... aerr ,m.l«w.l RARF PLANT Rc,.nsd ..,,mr Plar,r
.,E�imardunr ■ Q semrr ` i1 10 0 V ■ w VOID Fyn• 7
Figure 7:Screen capture of the WA Natural Heritage Program Data Explorer Map for this area(formally the WA DNR Wetlands
of High Conservation Value Map.
�xalx,aaaylana�rl.
N ( Q
Wqr
s:.Aral.r. yPe...r.
.`." ,• 1'�":.'t.- .,.+ ` __} r'"!'�;'of sn.«I�n .owr
�� Prx u.ys�. wsT..esP.n.>I.ra.
wa
o►w+....�As rrPln
a [I t7 ■
Figure 8:Screen capture of the WDFW Priority Habitats and Species web mapper for this area.
26
• -ct: 2024-WR-005 September1 • • -
i t
�,. - 4� r:'�{' � � +• -I ,�( �.��� ��F .� ♦ SwF,.
. �� � � SE j�� �!>r` .j. '�� wig, h� � I��X•�
I � '� I X"''� �TE• � •Imo:
�. •R �� � �r r�
i F the land
Project: 2024-WR-005 September2024 Rrcto9 Environmental LLG
x
J
s �
s i 1'r Y
+`_' • �, ` Y` yr .
� w
.�'!� �'�.` � t•� :. Imo. (�
� J
(L
-� t ♦ f s
P
Figure 10:Map showing the different Cowardin cover classes and hydroperiods within the wetland.The entire wetland is
permanently inundated with water seeping from a groundwater source.The yellow line is 150ft from the wetland edge for
reference and scoring of the functions of the wetland.
28
Project: 2024-WR-005 September 2024 Rrc+os Environrnen+al LLG
Y f
4
low
'yA
,G rye# '+ � t �
J�{i'' •" �► ��{ ���"'y '�,�1��,ail ,k��`+ r� As— ♦%f��
' � 'k `:rR�,t�tC a`.•��� �j`�a�'�fit!' .� �l {i�:� '1.
r
Site Photo 1:Image showing typical vegetation observed in the delineated slope wetland.
29