HomeMy WebLinkAboutWetland Delineation 901211009MEEHAN-ROULST WETLAND DELINEATING
Kimberly Meehan-Roulst, Wetland Specialist
407 Embody Rd, Port Ludlow, WA 98365
Phone: 360-732-0073, Cell: 360-774-0551
Specializing In:
Wetland and Stream Mapping, Delineation and
Restoration
SEP - 3 2019
10/18/18
Jefferson County Critical Areas 18.22 Article VII. Wetland Report:
TWO Category IV Wetlands
Case Number: CAM18-00652
PARCEL NUMBER: 901211009
Purchaser of Parcel Requesting Wetland Study:
Nicole Witham
2391 West Valley Road
Chimacum, WA 98325
Site Address: None
Owner of Parcel: Lawrence G Scoville
S 21, T29N, R1W 1/4S NE1/4
........
Lat: 47deg 59'53.62"N Long: 122deg 48'36.03"W
.........................
Investigator: Meehan-Roulst Wetland Consulting
Parcel 90121009 End of Van Trojen 1
TABLE OF CONTENTS
Page
CONSULTING COMPANY 3
TYPE OF ENVIRONMENTALLY SENSITIVE AREA INVISTIGATION 3
PROPERTY OWNER
3
APPLICANT REQUESTION WETLAND STUDY
3
Reason for this Jefferson County Critical Areas Study
5
Existing Conditions:
5
Wetland Delineation Field Investigation
6
Determination Based on Available Data
7
Wetland Description
7
Wetland 1
7
Wetland A
8
Wetland Boundary
8
Wetland Categories
9-10
Wetland Buffers
11-12
WETLAND CATEGORY
15
Buffer
18
CONCLUSION
18
TABLES
Table 1: Compiled Wetland Information for Wetland 1 9
Table 1: Compiled Wetland Information for Wetland A 10
APPENDICES
APPENDIX A —
Vicinity Map, Wetland Stations for Wetland 1 and Wetland A and location of data plots.
Boundary's
APPENDIX B- Wetland Field Data Forms
APPENDIX C- Figures for Wetland Rating Sheets
APPENDIX D- WESTERN WASHINGTON WETLAND RATING SHEETS
APPENDIX E- APPROACH AND METHODS
Wetland
Parcel 90121009 End of Van Trojen 2
WETLAND STUDY
DELINEATIONS AND CLASSIFICATION
CONSULTING COMPANY:
PROPERTY OWNERS
Meehan-Roulst Wetland Consulting
Kimberly Meehan-Roulst
407 Embody Rd, Port Ludlow, WA 98365
Lawrence G Scoville
308 E Street
Port Townsend, WA 98365
PERSON REQUESTING STUDY
Nicole Witham is looking to purchase parcel #90121009. Before she does, she would like for this Critical Areas
Report to be reviewed by Jefferson County Community Development to determine her use of the property
regarding wetland buffers.
SITE ADDRESS: None -It is at the very end of Van Trojen Road. Road ends at 2333 Van
Trojen Road and subject parcel is to the right, north.
LEGAL LOCATION: PARCEL # 901211009
Lat: 47deg 59'53.62"N Long: 122deg 48'36.03"W
ROUTE INSTRUCTIONS: From Jefferson County Permit Center, take the right onto W Sims Way/WA-20.
Go right pass through the first roundabout then enter the second one and take the 2"d exit on the right onto WA 20.
Stay Straight to go onto Airport Cutoff Rd/WA-19. Stay on WA -19 until you reach Chimacum School. Go right
at the school, West Valley Road. Approximately a half of a mile, Van Trojen Road will be on the right. Turn
onto Van Trojen Road. Stay on Van Trojen for approximately 1.7 Miles. Road ends at 2333 Van Trojen Road.
On the right at the end of the main road, the turn around at 2333 Van Trojen, there is a metal gate on the right.
Behind the gate is the entrance to the subject parcel. Wetland A is directly to the right behind the gate.
ZONING: RR -20- Rural Residential
ASSESSORS LAND USE CODE: 8800 -Designated Forest Land & 9800 -Garages, Outbuildings, Other
PROPERTY DESCRIPTION: S21 T29 R1 W TAX 3
SITE VISITS: Site investigation and field work started 10/10/18 and concluded on 10/19/18
Parcel 90121009 End of Van Trojen 3
Wetland Critical Areas Study Cont:
Soils ❑
Wetlands
Aquatic & Wildlife Conservation Area ❑
There are two Category IV Wetlands on parcel
number 901211009. Wetland I is on the northern
portion ofparcel and is approximately 1.28 acres
in size.. The other wetland is Wetland A and is on
the south portion of parcel and extends onto the
neighbors parcels to the east and south. It is
approximately. 7 acres (upland island and road
through wetland was subtracted to get this figure).
1. LANDSCAPE POSITION:
SLOPES ®
TYPE:
ALLUVIAL FAN
STREAM & RIVER ❑
FLOODPLAINS
❑
VALLEYS
LEVEL TERRACES
SWALES
DEPRESSIONS ®
MARINE TERRACE
❑
*Wetland 1 has a slope of 4.6 from north to south. Wetland A is an excavated pond, depression.
COASTAL DUNES
❑
ALLUVIAL FAN
❑
MARINE BLUFF
❑
VALLEYS
SWALES
❑
LANDSLIDE
❑
LAKES & PONDS
®
OTHER (EXPLAIN)
❑
TERRACE ESCARPMENT
❑
2. SLOPE GRADIENT: Wetland 1 slopes from the north property line south. The slope is 4.6%.
Wetland A has 0% slope in the ponded area on the parcel 90121009 but has approximately 2% slope in the
wetland area on the parcel to the south of Van Trojen Road.
Parcel 90121009 End of Van Trojen 4
Reason for this Jefferson County Critical Areas Study on Parcel 90121009•
Nicole Witham contacted my self, Meehan-Roulst Wetland Consulting to delineate two wetlands on the subject
parcel. Nicole wished to purchase the property from the current owner, Lawrence G Scoville. She wants to know
what the critical area buffers will be and if they have any impact on the building pad area already cleared on the
northwest portion of the parcel.
EXISTING CONDITIONS:
Parcel 90121009 is located off of Van Trojen Road in Chimacum Washington, Jefferson County. The parcel is up
the hill and at the very end of Van Trojen Road on the right. The parcel slopes up wards from the south property
line all the length of the parcel up to the north property line is a increase of 3 8% slope according to online USA
Topos Maps. It is 13.98 acres in size. The property is L shaped. The two Category IV wetlands cover
approximately 2 acres of the parcel. There is an existing access road that leads from the south property line to the
north line. It is located on the west side of the parcel. On the south property lines east side, there is Wetland A's
location. It extends over Van Trojen Road onto parcel 901211004. It also extends over the east property line
onto parcel 901211008. Wetland A was excavated out of what most likely was a wetland area. It is now a pond
that is 2-3' deep. It's hydroperiod is permanently flooded. On the north end of the wetland it has an area of
slough sedges and western red cedars on the edges. Watermarks were up on the cedars about .5-1'. Area is also
seasonally inundated based on those watermarks. The neighbors to the east created an upland area in the middle
of the excavated man made pond that is kidney bean shaped. There is a small portion of wetland across Van
Trojen that most likely receives water when the pond overflows. The two areas are 44' apart. The wetland on the
other side of the road has saturated only conditions that is dominated with reed canary, phalaris arundinacea
FACW. The upland edges around the wetland portion is a mix of wetland and upland shrubs and fruit trees.
Wetland vegetation in the pond area north of Van Trojen Road had an aquatic bed composed of ribbon -leaf
pondweed, potamogeton epihydrus OBL, and water lily, nymphaea odorata aiton OBL. Near the upland island it
is thickly vegetated with cattail. The upland island is a mix of shrubs and young alder and willow species. The
upland edges around the pond is a mix of upland and wetland shrubs and a mix of tree species such as red alder
(alnus rubra FAC) , willow (salix sp. FAC) , cascara buckthorn (frangula purshiana FAC) , young douglas fir
(pseudotsuga menziesii FACU), western hemlock (tsuga heterophllya FACI), and planted varieties of cherry and
apple trees. Further upland the vegetation is dominated with third and second growth douglas fir trees with
western red cedar (thuja plicata FAC) here and there. Shrubs consisted of red elderberry (sambucus racemosa
FACU), oceanspray (holodiscus discolor FACU) and red huckleberry (vaccinium parvifolium. FACU) The
herbaceous layer consisted of western sword fern (polysticum munitum FACU), wild strawberry (fragaria vesca
FACU) and kinnikinnick (arctostaphylos uva-ursi FACU) .
Moving north from wetland A, the vegetation remains forested. Wetland 1 starts 170' north of wetland A. There
is a shallow ravine between the two that serves as an outlet to Wetland 1 during heavy rain events. The shallow
ravine is vegetated with upland shrub species so the events do not occur that often. The start of wetland 1 is
vegetated with western buttercup, reed canary grass and salmon berry shrubs on the edges. The upland vegetation
is still heavily forested on the edges. Moving further north through the wetland it opens up. In 2011 the upper
northeast portion of the parcel was logged. There still remain remnants in the wetland of trees that were also
removed. Small upland patches also still exist within the wetland boundary. Since it was logged, the invasive
reed canary grass has filled in the once forested portion of the wetland. The upland on the northeast side of
wetland was logged and on the west side it still somewhat timbered and there is a cleared building pad area for a
home. Reed canary grass has covered over 30% of the wetland. This wetland has an elevated water table. The
dominant hydroperiod is saturated but there are small pockets at the south end of wetland where there is western
buttercup and small depressions that most likely is occasionally flooded after high rain events.
Parcel 90121009 End of Van Trojen
Both wetlands do not have any streams coming into them or leaving them. Wetland 1 ends just over the north
property line. It goes into an upland forest on DNR land. Wetland A on the south portion ends over on the
neighbors to the south, parcel 901211004. They are both isolated Category IV wetlands.
WETLAND DELINEATION FIELD INVESTIGATION
Section 404 of the Clean Water Act Define Wetlands as:
"Wetlands are areas that are inundated or saturated by surface or ground water at a
frequency and duration sufficient to support, and that under normal circumstances do
support, a prevalence of vegetation typically adapted for life in saturated soil conditions.
Wetlands generally include swamps, marshes, bogs, and similar areas. " - Definition of
wetlands as used by the U.S. Army Corps of Engineers (Corps) and the U.S. Environmental Protection Agency
(EPA) since the 1970s for regulatory purposes.
Wetlands must meet three parameters to be a wetland: Hdrophytic Vegetation (FAC or wetter), Hydric Soils (i.e.
redoximorphic features in the upper ten inches of soil profile) and Hydrology (ponding or saturated soils).
METHODOLOGY:
Level I Assessment consisted of reviewing existing information to develop background knowledge of physical
features, and to identify the potential for wetland and other water occurrences on the subject parcels. The
resource documents available for the Level I preliminary assessment included: USDA Soil Conservation Service
(SCS), "Soil Survey of Jefferson County Area Washington", aerial photography, Jefferson County Critical Areas
Maps and Jefferson County Critical Areas 18.22 Article VII Wetlands, U.S Fish and Wildlife NWI maps. See
Appendix A "Critical Areas Map" for the mapped wetlands on and around subject parcel.
Level III Assessment consisting of on-site investigation was conducted to determine the wetland area to collect
quantitative data of Hydrophytic Vegetation, Hydric Soils, and Wetland Hydrology and to delineate and classify
the wetland, as recommended in accordance with the 1987 Corps of Engineers Wetlands Delineation Manual
and the Regional Supplement to the Wetland Delineation 1987 Manual for Western Mountains, Valleys, and
Coast Region (Version 2) 2010.
Wetlands were rated using the Washington State wetland rating system for western Washington Update 2014,
Publication #14-06-29, Washington State Department of Ecology. Wetland boundary and location of field data
plots can be reviewed in Appendix A.
Parcel 90121009 End of Van Trojen 6
DETERMINATION BASED ON AVAILABLE DATA:
USFW NWI Maps did identify two wetlands this investigated property. Maps show Wetland A, the excavated
pond, as a freshwater pond and Wetland 1 is mapped as a freshwater emergent wetland. Maps show wetlands to
the west and east but all are greater than 100M away. However, each wetland on the property is within 170' of
one another. On the wetland rating sheets it asks for 3 or more habitats within 100M. Each wetland is within
100M of each other but did not score points because there was not two more to total 3 habitats. Washington
Department of Fish and Wildlife Habitats and Species Maps for Jefferson County indicates that there are no
priority State Candidate Species, Threatened, Priority or Other Priority Habitats located within a half mile of the
subject parcels. National Heritage Features Associated with Wetland Data does not list any rare plant species
within the subject location.
WETLAND DESCRIPTION:
Field investigation began on October 11, 2018 and completed on October 19, 2018. Fieldwork was conducted
under semi -sunny skies. Average ambient air temperature during the field investigation was forty five degrees
Fahrenheit. Three levels of data were gathered on the parcel: Vegetation, Soils and Hydrology.
Wetland 1:
The wetland edge around the north edge is mostly logged and south part of wetland is forested on both sides with
emergent vegetation in the wetland. The NWI (National Wetland Inventory) classification for the data forms was
palustrine freshwater emergent. 1M plot size were analyzed. Up Plot 1 and Wetland Plot 1 were on the east and
west sides of station of 11. Wetland boundary was numbered from the north property line heading south along
the wetland boundary. A total of 32 wetland stations were installed. Reed canary grass tends to exceed the
wetland boundary so soils were analyzed every thirty -forty feet. When the soils showed well drained soils in the
upper horizon and mottling below twelve inches, a wetland boundary whip was placed. See Wetland Stations
Map in Appendix A for locations of plots and boundary stations.
Soils and Hydrolm:
Soils are mapped as "Alderwood gravelly loams 0-15% slopes".
The Alderwood series is forested soil that is found on glacial drift plains. It is found on modified hills
and ridges. They are moderately deep to densic contact. They are classified as moderately well drained
soils. The Alderwood series was present in the upland areas along Wetland 1. The wetland soils in the
wetland were a wet variant of the Alderwood series. Hydrology was not present in the upper horizon
but was moist in the lower horizon. Wetland most likely has a perched water table in the winter and
spring months.
Parcel 90121009 End of Van Trojen 7
Wetland A:
Wetland A is an excavated pond with and upland island in the center. There was six wetland stations placed
around the wetland on the subject parcel. The other half of the wetland boundary was on the parcel to the east.
Station one starts on the south property line and moves up to the north to the end of the wetland on the subject
parcel. A total of six stations were placed on the boundary before it continued east onto the neighbors parcel.
The boundary was very distinct between upland and wetland. The excavated edge was the boundary where
wetland vegetation quickly went from wetland to upland. Soils were not used heavily as wetland indicator
because there was not area on the edge to analyze the soils without water filling the test pits. There was only one
area on the north side of wetland, where wet and up plots are located, where it was possible to determine hydric
soil to upland soils. The transition between wetland and upland vegetation was very obvious. Wet plot and Up
plots were investigated on each side of station 5, on the north side of the pond.
Soils and Hyd rolosy:
Jefferson County Critical Areas Map has the wetland mapped as "W" or wet. On the east side is mapped also as
Alderwood gravelly loams. The wet plot next to the pond was not the mapped soil unit. They were 10YR2/1
loams with 20% organics. Below the upper horizon was 10YR5/2 gravelly fine sandy loams with redox.
Saturated soils started at six inches below the soil surface. The upland soils were a Alderwood variant.
Wetland boundary is marked in the field with metal whips with orange flagging at the top. Each whip states on it
"M-R.W.C., Station #, Wet Boundary, and date". Wetland 1's boundary was accomplished by auguring with a
six inch drill every 30' to determine the break between upland soils and wetland soils. Whips are positioned
every thirty -forty feet between them. Above the whips, orange ribbon was hung stating "Wetland Boundary" for
the upper vegetation so it easily seen in the field. Wetland A has wetland stations placed at the upper edge of the
pond where the shrubs turn into upland vegetation. Orange ribbon stating "Wetland Boundary" was hung on the
higher vegetation.
Parcel 90121009 End of Van Trojen
WETLAND CATEGOR.YS
Wetland A on the south portion of the parcel and Wetland 1 on the north side of parcel were both rated using
Washington State Wetland Rating System for Western Washington, 2014. Both wetlands were rated out to be
Category N Wetlands. Wetland A was rated as depressional (HGM classification). Wetland 1 was rated as a
Slope wetland. The rating sheets can be reviewed in Appendix D.
Table 1 below provides compiled summary of wetland rating data using the depressional HGM for wetland A and
slope HGM for wetland 1. Location of the wetland study sites were recorded by latitude and longitude and
presented on the field data forms in Appendix B.
WETLAND CATEGORY for WETLAND A
Table 1
Compiled Wetland Information on Parcel for WETLAND A
Parcel 90121009 End of Van Trojen 9
Wetland Ratings Function
Scores
Function
Improve Hydrologicl Habitat
H2O
Total
Wetland
Landscape
p (HGM
Class,
Wetland
Delineated
Quality
+ Category
Position
(Rating
-Function
Boundary:
1.Site
M
M
M
!Score
Name
Acres
Potential
2. Landscape
L
L
H
Potential
L
L
L
3. Value
901211009
Score 4
4
6
14
IV
Depressional
Depressional
.7 Acres
On Parcel
Parcel 90121009 End of Van Trojen 9
WETLAND CATEGORY for WETLAND 1
Table 2
Compiled Wetland Information on Parcel for WETLAND 1
Parcel 90121009 End of Van Trojen 10
Wetland Ratings Function
Scores
Improve Hydrologic Habitat
Function
Q alit Y
Total 'Wetland 'Landscape IHGM
Class,
Wetland
,Delineated
Function Category Position
Rating
Boundary:
1.Site
M
M
M
Score
Name
Acres
Potential
I
4. Landscape P
M
L
H
I
Potential
5. Value
901211009
Score
6
4
5
15
IV
Slope
Slope
1.28 Acres
On Parcel
Parcel 90121009 End of Van Trojen 10
WETLAND BUFFERS
The proposed use in the future next to Wetland 1 is to build a home on the already cleared and level building
pad that is west of the wetland boundary. Single-family residential use on parcels of on acre or larger will
have the buffer in the table below. Cat IV wetlands for Moderate Impact Land Uses have a 40' buffer. The
building pad is not within the 40' wetland buffer.
Table 18.22.330(2)
WETLAND CATEGORIES, RATING SCORES AND BUFFER WIDTHS
FOR MODERATE IMPACT LAND USES
Moderate impact land uses shall include the following:
• Single-family residential use on parcels of one acre or larger;
• Private roads or driveways serving three or more residential parcels;
• Paved trails;
• Passive recreation areas;
• Utility corridors (private or public) with a maintenance road;
• Class IV -General forest conversions, including conversion option harvest plans.
Wetland Category
IV
(Total of scores for all
functions is less than
15 points)
Wetland Characteristics:
• Habitat (H)
• Water Quality (WQ)
[Total of scores less than 15 points]
Buffer Width with an
Identified Wetland
Boundary (Delineated)
40 feet
+ An Additional
Distance from an
Apparent Wetland
Boundary
(Not Delineated)
+20 feet
Parcel 90121009 End of Van Trojen 11
Wetland A currently has an access road up the west side of parcel/east of wetland boundary and its wetland
buffer. At this time there is no current uses planned for the south portion of the parcel next to Wetland A. The
current wetland buffer for a Cat IV wetland for Low Impact Land Uses is 25'. Access road is well out of the 25'
wetland buffer. If use changes in the future, for example building a new dwelling, the buffer will increase to 40'.
Table 18.22.330(1)
WETLAND CATEGORIES, RATING SCORES AND BUFFER WIDTHS
FOR LOW IMPACT LAND USES
Low impact land uses shall include the following:
• Private driveways serving no more than two residential parcels;
• Unpaved trails (when not exempted by JCC I a.LL.0 / u);
• Utility corridors (private or public) without a maintenance road;
• Landscaping, lawns, gravel driveways, etc.
Wetland Category
Wetland Characteristics
• Habitat (H)
• Water Quality (WQ)
Buffer Width with an
Identified Wetland
Boundary (Delineated)
IV [Total of scores less than 15 points] 25 feet
(Total of scores for all
Functions is less than 15
points) i
CONCLUSTION:
+ An Additional
Distance from an
Apparent Wetland
Boundary (Not
Delineated)
+20 feet
There are two Category IV wetlands on the east side of this parcel. The access road up to the building pad up
below the north property line are on the west side of parcel and both are out of Jefferson County Critical Areas
Wetland Buffers.
No further work on this parcel should take place until Jefferson County Community Development approves or dis
approves of this Critical Areas Report: Wetlands. The difference between wetland buffers for wetland 1 and
wetland A needs the approval from Jefferson County Community Development to be consumed.
Sincerely,
Meehan-Roulst Wetland Consulting
Parcel 90121009 End of Van Trojen 12
APPENDIX A
Vicinity Map,
Wetland 1 and Wetland A Stations and location of data plots.
WETLAND BOUNDARY'S
Photos of Wetland A and Wetland 1
Parcel 90121009 End of Van Trojen 13
Vicinity Map
Of Parcel 9012/009
Parcel 90121009 End of Van Trojen 14
WETLAND_ 1 LOCATIDN DF DATA PLOTS
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APPENDIX B
"FIELD DATA FORMS"
Parcel 90121009 End of Van Trojen 18
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys and Coast Regions
Project/Site: Parcel # 901211009 east of building ad
City/County: Chimacum, WA
Sampling Date: 10/11/18
Applicant/Owner: : Nicole Witham
State: WA
I Sam lin Point: Up Plot 1
Investigator(s): Meehan-Roulst Wetland Consulting/Kim Meehan-Roulst
Section Township, Range: S21, T29N R1W, 1/4S NEI/4
Landform hillslo e, terrace, etc): Slope 4.6%
Local relief concave, convex none): Concave I Sloe% 4.6%
Subre ion (LM: North West Forest Lat. 47de
59'53.62"N Lon : 122de 48'36.03"W I Datum: NAD 83
Soil Ma Unit Name: Alderwood avell loam 0-5%
NWI classification:
Are climatic / hydrologic conditions on the site ical for this time of ear? Yes No ❑ If no, explain in Remarks.
Are ve etation
Soil or H drolo significantly disturbed?
Are "Normal Circumstances" resent? Yes No
Are ve vegetation
Soil ❑, or H drolo ❑ naturally roblematic?
If needed, explain any answers in Remarks)
SUMMARY OF FINDINGS - Attach site man showing samnling point lneations. transects. imnnrtnat fentarec. ntr
3ydrophytic Vegetation Present? Yes ❑ No ®.
Is the Sampled Area
4ydric Soil Present? Yes ❑ No 0
Within a Wetland? Yes ❑ No
Welland IjArdlM Present? Yes ❑ No
(A) 2
Remarks:
VEGETATION - Use scientific names of nlantc
Trees Stratum 30' Radius Plot size:
Absolute
% Cover
Dominant
S ecies?
Indicator
Status
Dominance Test worksheet:
Number of Dominant Species That
Are OBL, FACW, or FAC:
(A) 2
1.
2.
3.
Total; Number of dominant
Species Across All Strata:
B 4
4.
5.
Percent of Dominant Species
That Are OBL, FCW, or FAC:
(AB) 50%
% Canopy=
Total Cover
Prevalence Index worksheet:
Total Cover of: Multiply by:
Sapling/Shrub Stratum (Plot size)
1. Rubus spectabilis
35
Yes
FAC
OBL species
X 1 =
2.
FACW species
X2=
3.
FAC species
2
X 3 =6
4.
FACU species
2
X 4 =8
5.
UPL Species
X5=
4•
Column totals
4(A)
14(B)
5..
Prevalence index = B/A =3.05
25% =Total
Cover
Hydrophytic Vegetation Indicators:
❑ 1. Rapid Test for Hydrophytic Vegetation
❑ 2.Dominance Test is >50%
❑ 3. Prevalence Index is <3.0' 3.05
❑ 4. Morphological Adaptations' (Provide
supporting data in Remarks or on a separate
sheet)
❑ 5. Wetland Non -Vascular Plants'
❑ Problematic Hydrophytic Vegetation'
(Explain)
'Indicators of hydric soil and wetland hydrology must
be present.
Hydrophytic
Vegetation
Present? Yes ❑ No
Herb Stratum Plot size: 1M
1. Agrostis stolenifera 40
Yes
FAC
2. Pteridium aquilinum 30
YES
FACU
3. Rubus ursinis 30
YES
FACU
4. Polystichum munittun 10
NO
FACU
5.
6.
7,
8.
9.
95% =Total Cover
Wood Vine Str&tum Plot size:)
1.
2,
=Total Cover
0
% Bare Ground in Herb Stratum 5%
Remarks:
US Army Corps of Engineers
SOIL
Western Mountains, Valleys and Coast— Version 2.0
Samnling Point Un Plot 1
Profile Description: (Describe t o the depth needed to document the indicators or confirm the absence of indicators)
Depth
(inches)
Matrix
Redox Features
Secondary Indicators 2 or more required)
Textures
❑ Water -Stained Leaves (139) (except
Remarks
Color (moist)
%
Color (moist)
%
Typel
Locz
0-5"
10YR3/4
100
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor (C1)
❑ Saturation Visible on Aerial Imagery
❑ Drift Deposits (133)
❑ Oxidized Rhizospheres along Living Roots (0)
GL
❑ Algal Mat or Crust (134)
Dark yellowish brown gravelly loam, weak
granular structure, common fine roots, smooth
boundary
5-11"
10YR4/4
100
❑ Shallow Aquitard (D3)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Plants (DY) (LRR A)
❑ FAC=Neutral Test (D5)
❑ Inundation Visible on Aerial Imagery (137)
GSL
❑ Raised Ant Mounds (D6) (LRR A)
Dark yellowish brown gravelly sandy loam,
weak sub angular blocky structure, smooth
bound
11-14"
10YR4/3
90
10YR4/6
10
C
M
LS
Brown loamy sands, 10% mottling starting at
13" from the soil surface, weak sub angular
bloc structure.
Water Table Present? Yes ❑
No ® Depth (inches):
Saturation Present? Yes ❑
No ® Depth (inches):
Wetland Hydrology Present? Yes ❑ No
includes capillarV fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
'Type: C=Concentrations, D=Depletion. RM=Reduced Matrix. CXS=Covered or Coated Sand Grains.
2Location:
P1=Pore lining, RC=Root Channel, M=Matrix
Hydric Soil Indicators: (Applicable to all LRRs,
unless otherwise noted.)
Indicators for Problematic Hydric Soils 3:
❑ 2 cm Muck (A10)
❑ Red Parent Material (TF2)
❑ Other (Explain in Remarks 3
3 vegetation and
Indicators of logyhydrmust
wetland hydrology must be present, unless
disturbed or problematic.
❑ Histosol (Al)
❑ Histic Epipedon (A2)
❑ Black Histic (A3)
❑ Hydrogen Sulfide (A4)
❑ Depleted Below Dark Surface (Al l)
❑ Thick Dark Surface (Al2)
❑ Sandy Mucky Mineral (S1)
❑Sandy Gleyed Matrix (S4)
❑ Sandy Redox (SS)
❑ Stripped Matrix (S6)
❑ Loamy Mucky Mineral (F1) (except MLRA 1)
❑ Loamy Gleyed Matrix (F2)
❑ Depleted Matrix (0)
❑ Redox Dark Surface (F6)
❑ Depleted Dark Surface (F7)
❑ Redox Depressions (F8)
Restrictive Layer (if present):
Type: Compact
Depth (inches): Compacted at nine inches.
Hydric Soil Present? Yes ❑ No
Remarks:
41T0111] 114TWO
Wetland H drolo y Indicators
Primary Indicators minimum of one required; check all that apply)
Secondary Indicators 2 or more required)
❑ Surface Water (Al)
❑ Water -Stained Leaves (139) (except
Water Stained Leaves (139) (MRLA 1, 2,
❑ High Water Table (A2)
MLRA 1, 2,4A, and 411)
4A and 4B)
❑ Saturation (A3)
❑ Salt Crust (B11)
❑ Drainage Patterns (B10)
❑ Water Marks (B1)
❑ Aquatic Invertebrates (B 13)
❑ Dry -Season Water Table (C2)
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor (C1)
❑ Saturation Visible on Aerial Imagery
❑ Drift Deposits (133)
❑ Oxidized Rhizospheres along Living Roots (0)
(C9)
❑ Algal Mat or Crust (134)
❑ Presence of Reduced Iron (C4)
❑ Geomorphic Position (D2)
❑ Iron Deposits (135)
❑ Recent Iron Reduction in tilled Soils (C6)
❑ Shallow Aquitard (D3)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Plants (DY) (LRR A)
❑ FAC=Neutral Test (D5)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
❑ Raised Ant Mounds (D6) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (D7)
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 capillarV fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys and Coast Regions
Project/Site: Parcel # 901211009 below buildin pad
City/County: Chimacum, WA Sampling Date: 10/11/18
Applicant/Owner: : Nicole Witham
State: WA Sampling Point: Wet Plot 1
Investigator(s): Meehan-Roulst Wetland Consulting/Kim Meehan-Roulst
Section, Township, Range: S21, T29N, RIW, IAS NEI/4
Landform hillslo e, terrace etc): SLOPE 4.6%
Local relief concave, convex, none): Concave I Sloe (%)4.6%
Subregion (LKR): North West Forest I Lat: 47de
59'53.62"N Long: 122de 48'36.03"W I Datum: NAD 83
Soil Map Unit Name: Alderwood gravelly loam 0-5%
1 NWI classification: PEM1B
Are climatic / hydrologic conditions on the site typical for this time of ear? Yes ® No ❑ If no, explain in Remarks.)
Are ve etation Soil 0,orflydrology significantly disturbed?
Are' Normal Circumstances" resent? Yes ® No ❑
Are ve etation , Soil Q,orl-lydrology❑ naturally problematic?
(If needed, explain any answers in Remarks
SUMMARY OF FINDINGS—Attach site man showing samoline ooint locations. transects. imnartant features. etc
Hydrophytic Vegetation Present? Yes ® No ❑
Is the Sampled Area
Hydric Soil Present? Yes ® No ❑
Within a Wetland? Yes ® No ❑
Zetland Hydrology Present? Yes ® No ❑
1.
Remarks:
Disturbed site. Building pad was scraped and leveled with moved soils with burn debris and wood debris.
VEGETATION - Use scientific names of slants
Absolute
Trees Stratum 30' Radius Plot size:) % Cover
Dominant
S ecies?
Indicator
Status
Dominance Test worksheet:
Number of Dominant Species That
Are OBL, FACW, or FAC:
(A) 4
1.
2.
3.
Total; Number of dominant
Species Across All Strata:
B 4
4.
5.
Percent of Dominant Species
That Are OBL, FCW, or FAC:
(A/B)
100%
Canopy= Total Cover
Prevalence Index worksheet:
Total % Cover of: Multiply by:
SapliniyIShrub Stratum (Plot size)
1. Rubus spectabilis
25
Yes
FAC
OBL species
X 1 =
2•
FACW species
X2=
3.
FAC species
X 3 =
4.
FACU species
X4=
5.
LPL Species
X 5 =
4.
Column totals
(A)
(B)
5..
Prevalence index = B/A =
25% =Total Cover
Hydrophytic Vegetation Indicators:
❑ 1. Rapid Test for Hydrophytic Vegetation
®2.Dominance Test is >50%
❑ 3. Prevalence Index is 53.0'
❑ 4. Morphological Adaptations' (Provide
supporting data in Remarks or on a separate
sheet)
❑ 5. Wetland Non -Vascular Plants'
❑ Problematic Hydrophytic Vegetation'
(Explain)
'Indicators of hydric soil and wetland hydrology must
be present.
Hydrophytic
Vegetation
present? Yes ® No ❑
Herb Stratum Plot size:) 1M
1. Juncus effuses 40
YES
FACW
2. Agrostis stolenifera 30
YES
FAC
3. Phalaris arundinacea 20
YES
FACW
4. Polystichum munitum 5
NO
FACU
5,
6.
7.
8.
9.
95% =Total Cover
Wood Vine Stratum Plot size:
1.
2.
=Total Cover
0
% Bare Ground in Herb Stratum 5%
Remarks:
US Army Corps of Engineers
SOIL
Western Mountains, Valleys and Coast — Version 2.0
SamnlinQ Point Wet Plot 1
Profile Description: (Describe t o the depth needed to document the indicators or confirm the absence of indicators)
Depth
(inches)
Matrix
Redox Features
Secondary Indicators 2 or more re uired
Textures
Remarks
Color (moist)
%
Color (moist)
%
Type'
Loc2
0-8"
10YR2/2
100
10YR7/4
10
C
M
GL
Very dark, brown gravelly loam, moderate
granular structure, common fine roots, smooth
boundary. 10% redox starting at 7 inches.
8-14"
10YR4/2
80
10YR4/4
20
C
M
GLS
Dark grayish brown gravelly sandy loam, weak
sub angular blocky structure smooth boundary
❑ FAC=Neutral Test (135)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
❑ Raised Ant Mounds (D6) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (137)
Field Observations
Surface Water Present? Yes ❑ No
® Depth (inches):
Water Table Present? Yes ❑ No
® Depth (inches):
Saturation Present? Yes ® No ❑ Depth (inches): 8
Wetland Hydrology Present? Yes ® No ❑
includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
'Type: C=Concentrations, D=Depletion.
RM=Reduced Matrix. CXS=Covered or Coated Sand Grains. 2Location:
Pl=Pore lining, RC=Root Channel, M=Matrix
Hydric Soil Indicators: (Applicable
to all LRRs,
unless otherwise noted.)
Indicators for Problematic Hydric Soils3i
.❑ 2 cm Muck (Al 0)
❑ Red Parent Material (TF2)
❑ Other (Explain in Remarks 3
3Indicators of hydrophytic vegetation and
wetland hydrology must be present, unless
disturbed or problematic.
❑ Histosol (Al)
❑ Histic Epipedon (A2)
❑ Black Histic (A3)
❑ Hydrogen Sulfide (A4)
❑ Depleted Below Dark Surface (All)
❑ Thick Dark Surface (Al2)
❑ Sandy Mucky Mineral (S1)
❑Sandy Gleyed Matrix (S4)
❑ Sandy Redox (SS)
❑ Stripped Matrix (S6)
❑ Loamy Mucky Mineral (FI) (except MLRA 1)
❑ Loamy Gleyed Matrix (172)
❑ Depleted Matrix (F3)
® Redox Dark Surface (176)
❑ Depleted Dark Surface (F7)
El Redox Depressions (F8)
Restrictive Layer (if present):
Type:
De th inches
Hydric Soil Present? Yes ® No ❑
Remarks:
HYDROLOGY
Wetland Hydrology Indicators
Primary Indicators (minimum of one required; check all that aVp!yj
Secondary Indicators 2 or more re uired
❑ Surface Water (Al)
❑ Water -Stained Leaves (B9) (except
Water Stained Leaves (B9) (MRLA 1, 2,
❑ High Water Table (A2)
MLRA 1, 2,4A, and 4B)
4A and 411)
® Saturation (A3)
❑ Salt Crust (1311)
❑ Drainage Patterns (B10)
❑ Water Marks (BI)
❑ Aquatic Invertebrates (B 13)
❑ Dry -Season Water Table (C2)
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor (C1)
❑ Saturation Visible on Aerial Imagery
❑ Drift Deposits (133)
❑ Oxidized Rhizospheres along Living Roots (0)
(C9)
❑ Algal Mat or Crust (134)
® Presence of Reduced Iron (C4)
❑ Geomorphic Position (132)
❑ Iron Deposits (135)
❑ Recent Iron Reduction in tilled Soils (C6)
❑ Shallow Aquitard (133)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Plants (DF) (LRR A)
❑ FAC=Neutral Test (135)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
❑ Raised Ant Mounds (D6) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (137)
Field Observations
Surface Water Present? Yes ❑ No
® Depth (inches):
Water Table Present? Yes ❑ No
® Depth (inches):
Saturation Present? Yes ® No ❑ Depth (inches): 8
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 — Version 2.0
WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys and Coast Regions
Project/Site: Parcel # 901211009 Wetland A, next to ST5
City/County: Chimacum, WA
Sampling Date: 10/19/18
Applicant/Owner: : Nicole Witham
State: WA
I Sam lin Point: U Plot 2
Investigator(s): Meehan-Roulst Wetland Consulting/Kim Meehan-Roulst
Section, Township, Range: S21, T29N Rl W, 1/4S NEIA
Landform hillslo e, terrace etc): De ressional
Local relief concave, convex none): Concave I Slope: 0-5%
Subregion (LRR): North West Forest I Lat: 47de
59'53.62"N Long: 122d548'36.03"W I Datum: NAD 83
Soil Map Unit Name: Alderwood gravelly loam 0-5%
1 NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of ear? Yes No If no, explain in Remarks.
Are vegetation Soil or Hydrology significantly disturbed?
Total; Number of dominant
Species Across All Strata:
Are "Normal Circumstances" resent? Yes 0 No ❑
Are vegetation Ej, Soil ❑, or Hydrology naturally problematic?
If needed, explain any answers in Remarks
SUMMARY OF FINDINGS—Attach site man showing sampling point locations. transects. imnnrtnnt t'aaturpit_ Ptr
•lydrophytic Vegetation Present? Yes ❑ No 0
Is the Sampled Area
ydric Soil Present? Yes ❑ No ®
Within a Wetland? Yes ❑ No
Wetland HydrotoM Present? Yes No
(A) 0
Remarks:
VEGETATION — Use scientific names of plants
Trees Stratum 30' Radius Plot size:
Absolute
% Cover
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
Number of Dominant Species That
Are OBL, FACW, or FAC:
(A) 0
I .
2.
3.
Total; Number of dominant
Species Across All Strata:
B 1
4.
5.
Percent of Dominant Species
That Are OBL, FCW, or FAC:
(A/B) 0%
% Canopy=
Total Cover
Prevalence Index worksheet:
Total % Cover of. Multiply by:
Sal3linglShruh Stratum (Plot size)
1. Rubus spectabilis
35
Yes
FAC
OBL species
X I =
2.
FACW species
X2=
3.
FAC species
X 3 =
4.
FACU species
X4=
5.
UPL Species
X5=
4.
Column totals
4(A)
14(B)
5••
Prevalence index = B/A =
25% =Total
Cover
Hydrophytic Vegetation Indicators:
❑ 1. Rapid Test for Hydrophytic Vegetation
❑ 2.Dominance Test is >50%
❑ 3. Prevalence Index is <3.0' 3.os
❑ 4. Morphological Adaptations' (Provide
supporting data in Remarks or on a separate
sheet)
❑ 5. Wetland Non -Vascular Plants'
❑ Problematic Hydrophytic Vegetation'
(Explain)
'Indicators of hydric soil and wetland hydrology must
be present.
Hydrophytic
Vegetation
Present? Yes El No
Herb Stratum Plot size: 1M
I. Gaultheria shallon 90 Yes
FACU
2. Rubus armeniacus 10 YES
FACW
5,
6.
7.
8.
9.
95% =Total Cover
Wood Vine Stratum Plot size:
1.
2.
=Total Cover
0
%Bare Ground in Herb Stratum 5%
Remarks:
US Army Corps of Engineers
Western Mountains, Valleys and Coast— Version 2
SOIL Sampling Point: U Plot 2
Profile Description: (Describe t o the depth needed to document the indicators or confirm the absence of indicators)
Depth
(inches)
Matrix
Redox Features
PrimM Indicators minimum of one required; check all that apply)
Textures
Remarks
Color (moist)
%
Color (moist)
%
Type'
Loc2
0-3"
10YR2/2
100
❑ Salt Crust (B 11)
❑ Drainage Patterns (B 1 d)
❑ Water Marks (B1)
❑ Aquatic Invertebrates (B13)
GSL
Very dark brown gravelly loam, weak granular
structure many course roots smooth bounds
3-12"
10YR4/3
100
❑ Drift Deposits (133)
❑ Oxidized Rhizospheres along Living Roots (0)
(C9)
❑ Algal Mat or Crust (134)
GSL
Brown very gravelly sandy loam, weak sub
an ular blocky structure smooth boundai
❑ (,isomorphic Position (D2)
❑ Iron Deposits (135)
❑ Recent Iron Reduction in tilled Soils (C6)
❑ Shallow Aquitard (D3)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Nants (DI') (LRR A)
❑ FAC -Neutral Test (D5)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
E] Raised Ant Mounds (D6) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (D7)
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:
'Type: C=Concentrations, D=Depletion. RM=Reduced Matrix.
CXS=Covered or Coated Sand Grains. 2Location;
PI=Pore lining, RC=Root Channel, M=Matrix
Hydric Soil Indicators: (Applicable to all LRRs,
unless otherwise noted.)
Indicators for Problematic Hydric Soils3'
❑ 2 cm Muck (A10)
❑ Red Parent Material (TF2)
❑ Other (Explain in Remarks 3
3
Indicators of hydrophytic vegetation and
wetland hydrology must beresent, unless
disturbed or Problematic. P
❑ Histosol (Al)
❑ Histic Epipedon (A2)
❑ Black Histic (A3)
❑ Hydrogen Sulfide (A4)
❑ Depleted Below Dark Surface (Al 1)
❑ Thick Dark Surface (Al2)
❑ Sandy Mucky Mineral (S1)
[:]Sandy Gleyed Matrix (S4)
❑ Sandy Redox (SS)
❑ Stripped Matrix (S6)
❑ Loamy Mucky Mineral (F1) (except MLRA 1)
❑ Loamy Gleyed Matrix (F2)
❑ Depleted Matrix (173)
❑ Redox Dark Surface (F6)
❑ Depleted Dark Surface (F7)
ElRedox Depressions (F8)
Restrictive Layer (if present):
Type: CompactHydric
Depth (inches): Compacted at nine inches.
Soil Present? Yes ElNo
Remarks:
Wetland Hydrology Indicators
PrimM Indicators minimum of one required; check all that apply)
Secondary Indicators 12 or more re wired
❑ Surface Water (Al)
❑ High Water Table (A2)
❑ Water -Stained Leaves (139) (except
MLRA 1, 2,4A, and 4B)
Water Stained Leaves (139) (MRLA 1, 2,
4A and 4B)
❑ Saturation (A3)
❑ Salt Crust (B 11)
❑ Drainage Patterns (B 1 d)
❑ Water Marks (B1)
❑ Aquatic Invertebrates (B13)
❑ Dry -Season Water Table (C2)
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor(C1)
❑ Saturation Visible on Aerial Imagery
❑ Drift Deposits (133)
❑ Oxidized Rhizospheres along Living Roots (0)
(C9)
❑ Algal Mat or Crust (134)
❑ Presence of Reduced Iron (C4)
❑ (,isomorphic Position (D2)
❑ Iron Deposits (135)
❑ Recent Iron Reduction in tilled Soils (C6)
❑ Shallow Aquitard (D3)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Nants (DI') (LRR A)
❑ FAC -Neutral Test (D5)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
E] Raised Ant Mounds (D6) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (D7)
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:
uo rutuy wips ei rugmcers Western Mountains, Valleys and Coast— Version 2.0
WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys and Coast Regions
Proiect/Site: Parcel # 901211009 south side of Station 5
City/County: Chimacum, WA Sampling Date: 10/19/18
Applicant/Owner: : Nicole Witham
State: WA I Sam lin Point: Wet Plot 2
Investigator(s): Meehan-Roulst Wetland Consulting/Kim Meehan-Roulst
Section, Township,Range: S21, T29N, R1 W, 1/4S NEIA
Landform hillslo a terrace, etc): De ressional
Local relief concave, convex none : concave I Sloeoz. 0-5
Subregion (LM: North West Forest Lat: 47de
59'53.62"N Long: 122de 48'36.03"W I Datum: NAD 83
Soil Map Unit Name; Alderwood Eavelly loam 0-5%
1 NWI classification: PABIH
Are climatic / hydrologic conditions on the site typical for this time of ear? Yes ® No ❑ If no, ex lain in Remarks.
Are ve etation Q,
Soil or Hydroloa significant! disturbed?
Are "Normal Circumstances" resent? Yes 0 No
Are vegetation El,
Soil jj, or Hydrology naturally problematic?
if needed, explain any answers in Remarks
SUMMARY OF FINDINGS—Attach site man showing sampling point locations. transects- imnnrtant 1'eat1imrns ete
ydrophytic Vegetation Present? Yes ® No ❑
Is the Sampled Area
Hydric Soil Present? Yes ® No ❑
Within a Wetland? Yes ® No ❑
Wetland Hydrology Present? Yes No
(A) 3
Remarks:
Disturbed site. Building pad was scraped and leveled with moved soils with burn debris and wood debris.
VEG TATIUN — Use scientific names of plants
Trees Stratum 30' Radius Plot size:)
Absolute
% Cover
Dominant
5 ecies?
Indicator
Status
Dominance Test worksheet:
Number of Dominant Species That
Are OBL, FACW, or FAC:
(A) 3
1. Frangula purshiana 30
Yes
FAC
2. Pseudotsuga menziesii 25
Yes
FACU
3. Alnus rubra
20
Yes
FAC
Total; Number of dominant
Species Across All Strata:
(B) 5
4.
5•
Percent of Dominant Species
That Are OBL, FCW, or FAC:
(A/B) 60%
Canopy= 75 Total Cover
Prevalence Index worksheet:
Total °/a Cover of: Multiply by:
Sapling/Shrub Stratum (Plot size)
1. Spiraea douglasii
40
Yes
FACW
OBL species
X 1 =
2. Gaultheria shallon
40
Yes
FACU
FACW species
X2=
3.
FAC species
X3=
4.
FACU species
X4=
5•
UPL Species
X5=
4.
Column totals
(A)
(B)
--
Prevalence index = B/A =
80% =Total
Cover
Hydrophytic Vegetation Indicators:
❑ 1. Rapid Test for Hydrophytic Vegetation
® 2.Dominance Test is >50%
❑ 3. Prevalence Index is <3.0'
❑ 4. Morphological Adaptations' (Provide
supporting data in Remarks or on a separate
sheet)
❑ 5. Wetland Non -Vascular Plants'
❑ Problematic Hydrophytic Vegetation'
(Explain)
'Indicators of hydric soil and wetland hydrology must
be present.
Hydrophytic
Vegetation
Present? Yes ® No El
Herb Stratum (Plot size: 1M
I.
2.
3
4•
5,
6.
7.
8.
9.
=Total Cover
Wood Vine Stratum Plot size:
1.
2.
=Total Cover
0
Ground in Herb Stratum 10%
Remarks:
US Army Corps of Engineers
enrr
Western Mountains, Valleys and Coast — Version 2.0
Samniina Point: Wet Plot 2
Profile Description: (Describe t o the depth needed to document the indicators or confirm the absence of indicators)
Depth
(inches)
Matrix
Redox Features
5econda ]ndieators 2 or more re uired
Textures
Remarks
Color (moist)
%
Color (moist)
%
Type'
LocZ
0-7"
10YR2/1
100
❑ Dry -Season Water Table (C2)
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor (C1)
❑ Saturation Visible on Aerial Imagery
L
Black loams with 20% organic material,
moderate granular structure, common course
roots smooth boundary.
8-14"
10YR5/2
80
7.5YR4/4
20
C
M
GSL
Grayish brown gravelly fine sandy loam,
moderate sub angular blocky structure,
rominent redoximorphic features.
❑ FAC=Neutral Test (135)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
❑ Raised Ant Mounds (136) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (137)
Field Observations
Surface Water Present? Yes ❑ No ® Depth (inches):
Water Table Present? Yes ❑ No ® Depth (inches):
Saturation Present? Yes ® No
❑ Depth (inches): 6
Wetland Hydrology
Present? Yes ® No ❑
includes capilITj frin e
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
'Type: C=Concentrations, D=Depletion. RM=Reduced Matrix. CXS—Covered or Coated Sand Grains. ZLocation:
P1=Pore lining, RC=Root Channel, M=Matrix
Hydric Soil Indicators: (Applicable to all LRRs,
unless otherwise noted.)
Indicators for Problematic Hydric Soile:
❑ 2 cm Muck (A10)
❑ Red Parent Material (TF2)
❑ Other (Explain in Remarks 3
3Indicators of hydrophytic vegetation and
wetland hydrology must be present, unless
disturbed or problematic.
❑ Histosol (Al)
❑ Histic Epipedon (A2)
❑ Black Histic (A3)
❑ Hydrogen Sulfide (A4)
® Depleted Below Dark Surface (A11)
❑ Thick Dark Surface (Al2)
❑ Sandy Mucky Mineral (S1)
F1 Sandy Gleyed Matrix (S4)
❑ Sandy Redox (SS)
❑ Stripped Matrix (S6)
❑ Loamy Mucky Mineral (F1) (except MLRA 1)
❑ Loamy Gleyed Matrix (172)
❑ Depleted Matrix (F3)
❑ Redox Dark Surface (F6)
❑ Depleted Dark Surface (177)
❑ Redox Depressions (178)
Restrictive Layer (if present):
Type:
Depth inches
Hydric Soil Present? Yes ® No ❑
Remarks:
uvnunT ncv
Wetland Hydrology Indicators
Primary Indicators minimum of one required; check all that apply)
5econda ]ndieators 2 or more re uired
❑ Surface Water (A1)
❑ Water -Stained Leaves (139) (except
Water Stained Leaves (139) (MRLA 1, 2,
❑ High Water Table (A2)
MLRA 1, 2,4A, and 411)
4A and 4B)
® Saturation (A3)
❑ Salt Crust (B11)
❑ Drainage Patterns (B10)
❑ Water Marks (131)
❑ Aquatic Invertebrates (1313)
❑ Dry -Season Water Table (C2)
❑ Sediment Deposits (132)
❑ Hydrogen Sulfide Odor (C1)
❑ Saturation Visible on Aerial Imagery
❑ Drift Deposits (B3)
❑ Oxidized Rhizospheres along Living Roots (0)
(C9)
❑ Algal Mat or Crust (134)
® Presence of Reduced Iron (C4)
❑ Geomorphic Position (D2)
❑ Iron Deposits (135)
❑ Recent Iron Reduction in tilled Soils (C6)
❑ Shallow Aquitard (D3)
❑ Surface Soil Cracks (136)
❑ Stunted or Stressed Plants (D1') (LRR A)
❑ FAC=Neutral Test (135)
❑ Inundation Visible on Aerial Imagery (137)
❑ Other (Explain in remarks)
❑ Raised Ant Mounds (136) (LRR A)
❑ Sparsely Vegetated concave Surface (138)
❑ Frost -Heave Hummocks (137)
Field Observations
Surface Water Present? Yes ❑ No ® Depth (inches):
Water Table Present? Yes ❑ No ® Depth (inches):
Saturation Present? Yes ® No
❑ Depth (inches): 6
Wetland Hydrology
Present? Yes ® No ❑
includes capilITj frin e
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
US Army Corps of Engineers Western Mountains, valleys ana toast — v ersion t.0
APPENDIX C
FIGURES FOR WESTERN WASHINGTON RATING SHEETS
Parcel 90121009 End of Van Trojen 19
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APPENDIX D
WESTERN WASHINGTON WETLAND RATING FORMS, 2014
Parcel 90121009 End of Van Trojen 20
Wetland name or number
RATING SUMMARY - Western Washington
Name of wetland (or ID #}; I'� _' 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 N
NOTE: Form is not complete without the figures requested (figures T', be combined).
Source of base aerial photo/map ^ �� ��--
OVERALL WETLAND CATEGORY (based ori functions_ or special characteristics)
1. Category of wetland 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 Hydrologic Habitat
Water Quality
Circle the appropriate ratings
Site Potential H L H N1: L H M L
Landscape Potential H M s L H M L` fH M L
Value H M L H M L= H M L TOTAL
Score Based on
Ratings
2. Category based on SPECIAL CHARACTERISTICS of wetland
CHARACTERISTIC
CATEGORY
Estuarine
I II
Wetland of High Conservation Value
I
Bog
I
Mature Forest
I
Old Growth Forest
I
Coastal Lagoon
I II
Interdunal
I II Ill IV
None of the above.
PSI
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Score for each
function based
on three
ratings
(order of ratings
is not
important)
9 = H, H, H
8 = H, H, M
7 = H,H,L
7 = H,M,M
6 = H,M,L
6 = M,M,M
5 = H,L,L
5 = M,M,L
4 = M,L,L
3 = L, L, L
1
Wetland name or number
Maps and figures required to answer questions correctly for
Western Washington
De ressional Wetlands
Map of:
To answer questions:
Figure #
Cowardin plant classes
D 1. 3, H 1. 1, H 1.4
H 1.2
Hydroperiods
D 1.4, H 1.2
,
Location of outlet (can be added to map of hydroperiods)
D 1.1, D 4.1
R 1.2, R 4.2
Boundary of area within 150 ft of the wetland (can be added to anotherfigure)
D 2.2, D 5.2
Y -
Map of the contributing basin
D 4.3, D 5.3
H 2.1, H 2.2, H 2.3
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)
D 3.3
Riverine Wetlands
' Map of:
To answer questions: Figure #
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 anotherfigure)
R 2.4
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 anotherfigure)
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
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)
R 3.1
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
R 3.2, R 3.3
Lake Frinize Wetlands
Map of:
To answerquestions: Figure #
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 anotherfigure)
L 2.2
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 ES2Loffy website)
L 3.1, L 3.2
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
L 3.3
Slope Wetlands
Map of: To answer questions:
Figure #
Cowardin plant classes H 1.1, H 1.4
Hydroperiods H 1.2
Plant cover of dense trees, shrubs, and herbaceous plants S 1.3
Plant cover of dense, rigid trees, shrubs, and herbaceous plants S4.1
(can be added to figure above)
Boundary of 150 ft buffer (can be added to another figure) S 2.1, 5 5.1
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 undisturbed habitat
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) S 3.3
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
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 2YES -the wetland class is Tidal Fringe - go to 1.1
1. T'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
Ifyour 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 notscored. 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
-Ifyour 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 anytime 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).
(NOgo to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe)
4. Does the entire wetland unit meet all of the following criteria?
The wetland is on a slope (slope can be vetygradual),
The water flows through the wetland in one direction (unidirectional) and usually comes from
seeps, It may flow subsurface, as sheetflow, or in a swale without distinct banks,
The water leaves the wetland without being impounded.
'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).
S. 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
Wetland name or number
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 sometime 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-goto8
YES - The wetland class is Depressional
8. 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
being rated
HGM class to
use in rating
Slope + Riverine
Riverine
Slope + Depressional
Depressional
Slope + Lake Fringe
Lake Fringe
Depressional + Riverine along stream
within boundary of depression
Depressional
Depressional + Lake Fringe
Depressional
Riverine + Lake Fringe
Riverine
Salt Water Tidal Fringe and any other
class of freshwater wetland
Treat as
ESTUARINE
Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou have
more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the
ra ting.
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
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 space water outflows from the wetland:
Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet).
point.$ = 3
Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet.)
points 2
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 sail 2 in below the surface for duff Laver) is true clay or true organic (use MRCS definitions). Yes = 4 No = 0
D 13. Characteristics and distribution of persistent plants (Emergent, Scrub -shrub, and/or Forested Cowardin classes):
Wetland has persistent, ungrazed, plants > 95% of area points = 5
Wetland has persistent, ungrazed, plants > % of area points := 3
has
Wetland persistent, ungrazed plants >'/i0 of area paints =
Wetland has persistent, ungrazed plants <'/10 of area points = 0;
D 1.4.. Characteristics of seasonal ponding or inundation:
�'11CThis is the area that is ponded for at least 2 months. See description in manual.
Area seasonally ponded is > A total area of wetland !f _i - ; _ ; .+ = "_ points = 4
Area seasonally ponded is > %total area of wetland points = 2
Area seasonally ponded is < % total area of wetland points = 0
Total for D 1 Add the points in the boxes above
Rating of Site Potential If score is: 12-16 = H 6-11= M �0-5 = L Record the rating on the first page
D 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? Yes = 1 No = 0
D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0
D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0
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 Yes = 1 No = 0
Total for D 2 Add the points in the boxes above
Rating of Landscape Potential If score is:_3 or 4 = H _1 or 2 = M 0 = L 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 on the
303(d) list? Yes = 1 No = 0
D 3.2. Is the wetland in a basin or sub -basin where an aquatic resource is on the 303(d) list? _Yes = 1.= No = 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 unit is found)? Yes = 2 ,No = 0
Total for D 3 Add the points in the boxes above
r
Rating of Value If score is: 2-4 = H _�i( 1 = M _0 = L
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Record the rating on the first page
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 outletpoints = 2
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
;.
D 4.2. De th of st ra a during wet perl2d: Estimate the height of ponding 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 points = 5
Marks are at least 0.5 ft Co < 2 ft from surface or bottom of outlet points
The wetland is a "headwater" wetland points=3 €
Wetland is flat but has small depressions on the surface that trap water points z�
-
Marks of ponding less than 0.5 ft (6 in) points = 0
D 4.3. Contribution of the wetland to storage 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 unitpoints =` -,,
The area of the basin is more than 100 times the area of the unit points = 0
Entire wetland is in the Flats class points = 5
Total for D 4 f Add the points in the boxes above
Rating of Site Potential if score is:_12-16 = H �,z6-11 = M —0-5 = L Record the rating on the first page
D 5.0. Does the landsca a have the potentiai to support hydrologic functions of the site?
D 5.1. Does the wetland receive stormwater discharges? Yes = 1 !,G0 = 0
D 5.2. is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No 7
D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (resident(al at
>1 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 .No = 0�
Total for D 5 Add the points in the boxes above
Rating of Landscape Potential If score is:_3 = H _1 or 2 = M \L_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 landsc@ne that has flooding prom
bles. Choose the description that best matches conditions around
the wetiand unit being rated. Oo not add points. trhoose the hiohest score if more than Qne cQndition 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. points = 2
• Surface flooding problems are in a sub -basin farther down -gradient. points = 1
Flooding from groundwater is an issue in the sub -basin. points = 1
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= 2'No=O'
Total for D 6 Add the points in the boxes above
-
Rating of Value If score i5:_2-4 = H —3 = M \Z 0 = L
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Record the rating on the first page
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
of % 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
'3 structures:,points = 2
_Emergent
_Scrub -shrub (areas where shrubs have > 30% cover) ?„F� •F�„ i- structures: points =1\
t�
(areas where trees have > 30% cover) 1 structure: points = 0
_Forested
If the 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 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:_points = 2
Occasionally flooded or inundated<`~` '2 types present: points =
—Saturated only 1 type present: points = 0
i
_Permanently flowing stream or river in, or adjacent to, the wetland
II
Seasonally flowing stream in, or adjacent to, the wetland
—Lake Fringe wetland 2 points
Freshwater tidal wetland 2 points
1
H 13. Richness of plant species
Count the number of plant species in the wetland that cover at least 10 ftZ.
Different patches of the some species can be combined to meet the size threshold and you do not have to name
the species. Do not include Eurasian milfoil, reed canarygross, purple loosestrife, Canadian 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.
0
None = 0 points Low = 1 point Moderate = 2 points
All three diagrams
in this row
are HIGH = 3points
Wetland Rating System for Western WA: 2014 Update 13
Rating Form – Effective January 1, 2015
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 (> 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 Benning (> 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
Total for H 1 r Add the points in the boxes above
Rating of Site Potential If score is:_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 that directly abuts wetland unit).
Calculate; % undisturbed habitat + [(%moderate and low intensi Ind uses)/2)` .� °!°
If total accessible habitat is:`vl �,.•
>'h (33.3%) of 1 km Polygon 'f ' :'
points = 3
20-33% of 1 km Polygon�7oints = 2
10-19% of 1 km Polygon points = t�
< 10% of 1 km Polygon po#nts-= 0•
H 2.2. Undisturbed habitat in 1 km Polygon arou d the wetland.
Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2]= %
Undisturbed habitat > 50% of Polygonpo nts—A
Undisturbed habitat 10-50% and in 1-3 patches points = 2
Undisturbed habitat 10-50% and > 3 patches points = 1
�y
Undisturbed habitat < 10% of 1 km Polygon points = 0
H 2.3. Land use intensity in 1 km Polygon: If
> 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 ^< 1 = L
Record the rating on the first page
H 3.0. Is the habitat provided by the site valuable to society? f
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)
-,-s
— It 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
— 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 of the criteria above f
Rating of Value If score ls:_2 = H _1= M -0 = L
Sul
Record the rating on the first page
Wetland Rating System for Western WA: 2014 Update 14
Rating Form - Effective January 1, 2015
Wetland name or number
WDFW Priority Habitats
pliorit i f (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. Olympia, Washington.
177 pp. �v.�v ,�,lutsl}lira}lira#ia�tslQ 'i65 w 1'µLQQIk5Anff or access the list from here:
i�. i]/wdfw.wa_ptovf_•a�, nse+_v ti s!li�)
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 PHS report).
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. iture 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
component 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
prairie (full descriptions in WDFW PNS 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. '
— Talus: Homogenous areas of rock rubble ranging in average size 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.
— 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 15
Rating Form - Effective January 1, 2015
Wetland name or number
CATEGORIZATION BASED ON SPECIAL. CHARACTERISTICS
Wetland Type
Category
Check off any criteria that app!to the wetland. Circle the category when the appropriate criteria are 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. f
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)
Cat. I
—At least 1/4 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
Cat. If
contiguous freshwater wetlands. Yes = Category I No = Category II
SC 2.0. Wetlands of High Conservation Value (WHCV)
SC 2.1, Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High
Conservation Value? Yes – Go to SC 2.2 No – Go to SC 2.3
Cat. I
SC 2,2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value?
Yes = Category I No = Not a WHCV
SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland?
httP1Lwww1.dnr.wa,gov/nhi)/refdeskLatasearch/wnhnwetlands ridf
Yes – Contact WNHP/WDNR and go to SC 2.4 No =Not a WHCV
SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on
their website? -Yes= Category I 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 you answer YES you will still need to rate the wetland based on its functions.
SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or
more of the first 32 in of the soil profile? Yes – Go to SC 3.3 No – Go to SC 3.2
SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, 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 = 1s 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 least a 30%
cover of plant species listed in Table 4? Yes = Is a Category I 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.
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, AND any of the
species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy?
Yes = Is a Category I bog No = Is not a bog
Wetland Rating System for Western WA: 2014 Update 16
Rating Form – Effective January 1, 2015
Wetland name or number
SC 4.0. Forested Wetlands
Does the wetland have at least 1 contiguous 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
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 iswholly 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 ppt)
during most of the year in at least a portion of the lagoon (needs to be measured near the bottom)
Cat. I
Yes – Go to SC 5.1 No = Not a wetland in a coastal lagoon
SC 5,1. Does the wetland meet all of the following three conditions?
—The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less
than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100).
Cat. II
—At least % of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un -grazed or un -
mowed grassland,
—The wetland is larger than 1/10 ac (4350 ftz)
Yes= CategoryI No = Category II
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 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
Cat i
— Ocean Shores-Copalis: Lands west of SR 115 and SR 109
Yes – Go to SC 6.1 No = not an interdunal wetland for rating
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
Cat. II
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 that is 1 ac or larger?
Yes = Category 11 No – Go to SC 6.3
Cat, III
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 17
Rating Form — Effective January 1, 2015
Wetland name or number
RATING SUMMARY -- Western Washington,
Name of wetland (or ID #): ` _ pate of site visit: ')6Wt?.�
Rate by Li','a Trained by Ecology? Yes �No pate of trainin f
HGM Class used for rating " t �� Wetland has multiple HGM classes -_Y N
NOTE: Form is not complete without the figures requested (figures, can be combine)d).
Source of base aerial photo/map
OVERALL WETLAND CATEGORY __\/
(based on functions_ or special characteristics_)
1. Category of wetland based on FUNCTIONS
Category I — Total score = 23 - 27
Category 11— Total score = 20 - 22
Category l — Total score = 16 -19
Category IV Total score = 9 - 15
FUNCTION ImpWing Hydrologic C Habitat
Water Quality
Site Potential I H
Landscape Potential H
Value H
Based on
Circle the appropriate ratings
L H �k- L H M ILS
r L H M H' M L
L H M L HM �L' TOTAL
r
2. Category based on SPECIAL CHARACTERISTICS of wetland
CHARACTERISTIC
CATEGORY
Estuarine
I II
Wetland of High Conservation Value
I
Bog
I
Mature Forest
I
Old Growth Forest
I
Coastal Lagoon
I II
Interdunal
I II III IV
None of the above
a' fiS
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Score for each
function based
on three
ratings
(order of ratings
is not
important)
9 = H,H,H
8 = H,H,M
7 = H,H,L
7 = H,M,M
6 = H,M,L
6 = M,M,M
5 = H,L,L
5 = M,M,L
4 = M,L,L
3 = L, L, L
1
Wetland name or number
Maps and figures required to answer questions correctly for
Western Washington
Depressional Wetlands
Map of:
To answer questions: Figure #
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)
D 1.1, D 4.1
BounclarX of area within 150 ft of the wetland fcan be added to another i ure)
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
olygons 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)
D 3.3
Riverine Wetlands
Map of:
To answer questions: Figure #
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 fcan be added to another figure)
R 2.4
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 fi ure)
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
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 Ecolo-sy website)
R 3.1
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
R 3.2, R 3.3
Lake Fringe Wetlands
Map of:
To answer questions: Figure #
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 onotherfigure)
L 2.2
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 list of TMDLs for WRIA in which unit is found (from web)
L 3.3
Slope Wetlands
Map of:
To answerquestions:
FJ ure #
Cowardin plant classes
H 1.1, H 1.4
Hydroperiods
H 1.2
Plant cover of dense trees, shrubs, and herbaceous plants
S1.3
Plant cover of dense, rigid trees, shrubs, and herbaceous plants
(can be added to figure above)
S4.1
1
Boundary of 150 ft buffer can be added to another figure)
S 2.1, 5 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
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?
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)?
��
Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe
r wetland can be classified as a Freshwater Tidal Fringe use the forms for Rivet-ine 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.
�go to 3 YES - The wetland class is Flats
y r 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 anytime 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).
*--'go to 4 YES -The wetland class is Lake Fringe (Lacustrine Fringe)
4. � he entire wetland unit meet all of the following criteria?
e wetland is on a slope (slope can be verygradual),
The water flows through the wetland in one direction (unidirectional) and usually comes from
reps.
It may flow subsurface, as sheetflow, or in a swale without distinct banks,
e water leaves the wetland without being impounded.
NO - go to 5 i 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).
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.
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Wetland name or number
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 sometime 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
8. 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
being rated
HGM class to
use in rating
_
Slope + Riverine
Riverine
Slope + Depressional
Depressional
Slope + Lake Fringe
Lake Fringe
Depressional + Riverine along stream
within boundary of depression
Depressional
-Depressional + Lake Fringe
Depressional
Riverine + Lake Fringe
Riverine
Salt Water Tidal Fringe and any other
class of freshwater wetland
Treat as
ESTUARINE
Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou 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
Rating Form - Effective lanuaty 1, 2015
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?
303(d) list? Yes = 1` o = 0 ',
5 1.1. Characteristics of the average slope of the wetland: (a 1% slope has a 1 ft vertical drop in elevation for every
5 2.2. Are there other sources of pollutants coming into the wetland that are not listed in question S 2.1?
100 ft of horizontal distance)
Other sources Yes= 1
Slope is 1% or less points = 3
Total for S 2 Add the points in the boxes above
Slope is > 1%-2% ' points = 2
i�r.
if there is a TMDL for the basin in which unit is found. Yes = 2 ; No =`0 ,
Slope is > 23o.y°k points =:C"
,
Slope is greater than 5% oi'nts
51.2. The soil 2 in below the surface LoLduff la er is true clay or true organic (use NRCS de initions): Yes = 3 No = 0
t
S1.3. 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% cover), and uncut means not grazed or mowed and plants are higher
than 6 in.
Dense, uncut, herbaceous plants > 90% of the wetland area points = 6
Dense, uncut, herbaceous plants > Y2 of area points = 3
Dense, woody, plants > % of area points = 2
Dense, uncut, herbaceous plants > % of area points =1
r
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 _V6 -11=M _ _ 0-5 = L
Record the rating on the first page
5 2.0. Does the landscape have the potential to support the water quality function of the site?
S 2.1. Is > 10% of he area within 150 ft on the uphill side of the wetland rR land uses that generate pollutaRts?
303(d) list? Yes = 1` o = 0 ',
5 2.2. Are there other sources of pollutants coming into the wetland that are not listed in question S 2.1?
Other sources Yes= 1
Total for S 2 Add the points in the boxes above
Rating of Landscape Potential If score is:__y 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?
SM, 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` o = 0 ',
53.2. Is the wetland in a basin or sub -basin where water quality is an issue? At least one aquatic resource in the 6 -0 -sin is
on the 303(d) list. i .Yes =1 No = 0
SM. Has the site been identified in a watershed or local plan as important for maintaining water quality? Answer VES
if there is a TMDL 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 is:o2-4 = H _V' 1 = M _0 = L
Wetland Rating System for Western WA: 2014 Update
Rating Form – Effective January 1, 2015
Record the rating on the first page
11
Wetland name or number
SLOPE WETLANDS
Hydrologic Functions - Indicators that the site functions to reduce flooding and stream erosion
S 4.0. 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
The sub -basin immediately down -gradient of site has flooding problems that result in damage to human or
for the description that best flts conditions in the wetland. Stems of plants should be thick enough (usually > I/8
natural resources (e.g., houses or salmon redds) points = 2
in), or dense enough, to remain erect during surface flows.
Surface Flooding problems are in a sub -basin farther down -gradient points =1
Dense, uncut, rigid plants cover > 9q% of the rea of the wetland
Q points
No flooding problems anywhere downstream i oints = 0``;
All other conditions ° ; ," ,";�, rs points = 0
S 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan?
Rating of Site Potential If score isu�_i = M _0 = L
Record the rating on theyirst page
S S.O. Does the landscape have the potential to support the hydrologic functions of the site?
S 5.1. Is more than 25% of the area within 1 0 ft pslope of tland i land uses or cover that generate excess
surface runoff? C�eDi�'Git'� i ; n '° ' N'�- = Q Yes o
Rating of Landscape Potential If score is: _i - M _�40 = L 3• Record the rating on the first page
S 6.0. Are the hydrologic functions provided by the site valuable to society?
S6.1. Distance to the nearest areas downstream that have flooding problems:
The sub -basin immediately down -gradient of site has flooding problems that result in damage to human or
natural resources (e.g., houses or salmon redds) points = 2
Surface Flooding problems are in a sub -basin farther down -gradient points =1
No flooding problems anywhere downstream i oints = 0``;
S 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan?
Yes = 2 ..No = 0
Total for S 6 Add the points in the boxes above
Rating of Value If score is: -2-4 = H _1= M —0 = L Record the rating on the first page
NOTES and FIELD OBSERVATIONS:
Wetland Rating System for Western WA: 2014 Update 12
Rating Form - Effective January 1, 2015
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
Cowardln plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold
of Y. 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
emergent 3 structures: points = 2
_Scrub -shrub (areas where shrubs have > 30% cover); 2.strucWrev-point§ =1
Forested (areas where trees have > 30% cover) re: points =
If the unit has a Forested class, check if: tr _ __
The
_The Forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous, moss/ground-cover) it
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 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: points-= 2
�0ccasionally flooded or inundated `-2 types present: points =J1';
�Zsaturated only 1 type present: points =_0__
_Permanently flowing stream or river in, or adjacent to, the wetland
_Seasonally flowing stream in, or adjacent to, the wetland
_Lake Fringe wetland 2 points
Freshwater tidal wetland 2 points
H 1.3. Richness of plant species
Count the number of plant species in the wetland that cover at least 10 ftz.
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 = 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.
None = 0 points a,_ Low = 1 point Moderate = 2 points
All three diagrams
in this row
are HIGH = 3points '
s
Wetland Rating System for Western WA: 2014 Update 13
Rating Form - Effective January 1, 2015
Wetland name or number
H 1.5. Special habitat features:
Chel,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 (>4 in diameter and 6 ft long).; i
_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 hove not yet weathered
where wood is exposed)
--V—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 1.1 for list of
strata) 1
Total for H 1
Add the points in the boxes above
Rating of Site Potential If score is:_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 that directly abuts wetlond unit).
Calculate, % undisturbed habikat�+ [(% moderate andl9w intensity land uses)/2]�
If total accessible habitat is: -1tj►
> 1/s (33.3%) of 1 km Polygon points = 3
20-33% of 1 km Polygon points = 2
10-19% of 1 km Polygon (points = I'
< 10% of 1 km Polygon pciints = 0-
H 2.2. Undisturbed habitat in 1 km Polygon around the wetland.
i
Calculate. % undisturbed habitat_ + [(% moderate and low intensity land uses)/2a = rti 1~ %
Undisturbed habitat > 50% of Po{ygon L "• =" 'ir 1; [ op ants = 3
Undisturbed habitat 10-50% and in 1-3 patches ' points = 2
Undisturbed habitat 10-50% and > 3 patches points = 1
Undisturbed habitat < 10% of 1 km Polygon points = 0
H 2.3. Land use intensity in 1 km Polygon: If
> 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:_V4-5 = 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 meets ANY of the following criteria: i points = 2
— It 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)
— 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; j-
— 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 C}• points =1
Site does not meet any of the criteria above points = 0
Rating of Value If score is: -2 = H —1 = M -je�0 = L
Wetland Rating System for Western WA: 2014 Update
Rating Form — Effective January 1, 2015
Record the rating on the first page
14
Wetland name or number
WDFW Priority Habitats
.Prion_ ,yha bitats listed by WDFW (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. Olympia, Washington.
177pp. w . ca il i y i ws(ty4?65_ udf or access the list from here:
JuLI)JIV 1121131 list )
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 PHS report).
— Herbaceous Balds: Variable size patches of grass and (orbs on shallow soils over bedrock,
— Old-growth/Mature forests: - 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
component 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
prairie (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,
— Talus: Homogenous areas of rock rubble ranging in average size 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.
— 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 It (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 15
Rating Form - Effective January 1, 2015
Wetland name or number
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Wetland Type
Category
Check Rff any criteria that apply to the wetland. Circle the category when the appropriate criteria are 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 t Yes –Go to SC 1.1 N –Not an estuarine wetland
SC I.I. Is the wetland within a National Wildlife Refuge, National Park, National Estua Reserve, Natural 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, I
SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three condit
—The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less
than 10% cover of nonnative plant species. (If non-native species are Spartino, see page 25)
Cat. I
— At least Y. 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
Cat. II
contiguous freshwater wetlands. Yes = Category i No = Category II
SC 2.0. Wetlands of High Conservation Value (WHCV)
SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High
Conservation Value? Yes T Go to SC 2.2 No – Go to SC 2.3
Cat. I
SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value?
Yes = Category I No's Not a WHCV
SC 23. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland?
http://ww w 1. Or. wa.gov/ nh p/ref d esk/d atasearchlwnhowetlandsQdf
Yes - Contact WNHP/WDNR and go to SC 2.40 = Not a WHCV
SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Vapid listed it on
their website? Yes = Category I fNo q Not a WHCV
SC 3.0. Bogs 777
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 its functions.
SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or
more of the first 32 in of the soil profile? Yes - Go to SC 3.3 ^ fVo = Go to SC 3.2
SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep
over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on_lop of a lake or
pond? Yes - Go to SC 3.3 No = 15 not a bog
SC 3.3. Does an area with peats or mucks have more than. 70% cover of mosses at ground level, A"ast a 30%
cover of plant species listed in Table 4? Yes = Is a Category I bog "No Go to SC 3.4
NOTE: If you are uncertain about the extent of mosses in the understory, you may substitu at 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.
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, AND any of the
species (or combination of species) listed in Table 4 provide more than 30% of the cover ugd< the canopy?
Yes = Is a Category I bog CNo)Is not a bog
Wetland Rating System for Western WA: 2014 Update 16
Rating Form - Effective January 1, 2015
Wetland name or number
SC 4.0. Forested Wetlands
Does the wetland have at least 1_contiuuous 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 stillneed 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
species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm).
Yes= Category Ia 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 ppt)
during most of the year in at least a portion of the lagoon (needs to be measured near the bottom)
Cat.
Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon
SC 5.1. Does the wetland meet all of the following three conditions?
—The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less
than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100).
Cat. II
— 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 '/10 ac (4350 ft')
Yes = Category I N CategoryII
SC 6.0. Interduna! Wetlands
Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If
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
Cat I
— Ocean Shores-Copalis: Lands west of SR 115 and SR 109
Yes - Go to SC 6.1 No = not an interdunal wetland for rating
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
Cat. II
for the three aspects of function)? Yes = Category 1N 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 dGo to SC 6.3
Cat. III
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
Yes = Category III No CategorylV
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 17
Rating Form - Effective January 1, 2015
APPENDIX E
APPROACH AND METHODS
Parcel 90121009 End of Van Trojen 21
APPROACH AND METHODS
CRITICAL AREA DETERNi IN ATION, DELINEATION & CLASSIFICATION:
Wetland boundary is marked every 25' with 3" x 5" orange plastic wire whips. The whips have the station
numbers for surveying, the date the boundary was established and the lettering M-R.W.C. indicating Meehan-
Roulst Wetland consulting as the principal contractor. Each wetland whip has an orange wetland boundary ribbon
attached to it. In addition, in forested and shrubby areas there is wetland flagging hung at near eye level for
guidance to the next wetland station.
WETLAND DELINEATION BASED ON: 1987 Corps of Engineers Wetlands Delineation Manual and the Regional
Supplement to the Wetland Delineation 1987 Manual for Western Mountains, Valleys, and Coast Region
(Version 2) updated in 2010.
Wetland Determination
Two levels of information were gathered to do a routine wetland determination. These included:
a) Review of preliminary site data and,
b) On-site investigation to determine the presence of wetlands and non wetland waters.
a) A review of existing information was conducted to develop background knowledge of physical
features, and to identify the potential for wetland occurrence on the subject property. The
resource documents available for preliminary review of the site conditions included: USDA Soil
Conservation Service (SCS), "Soil Survey of Jefferson County Area Washington", 2013 and
1994, Jefferson County aerial photography, and Jefferson County Planning Department data.
b) During the on-site investigation, wetland areas were determined and verified on the basis of three
parameters: Hydrophytic Vegetation, Hydric Soils, and Wetland Hydrology, as recommended in the Regional
Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast
Region (Version 2.0), May 2010. Hydric soils are classified using Filed Indicators of Hydric Soils in the United
States, Version 7.0, 2010.
A positive wetland determination is made when all three parameters are present, or in certain situations
determined following the guidelines recommended in wetland determination procedures, or for atypical situations
or problem areas.
Parcel 90121009 End of Van Trojen 22
c) The wetland was classified as to type (category) by using the Washington State wetland rating system
for western Washington -October -2014. Effective January 2015, Washington State Department of Ecology's
Publication No. 03-06-029 and applicable Rating Forms Effective January 1, 2015.
H yd ro phytic Vegetation
Areas where more than 50% of the dominant species present from all strata are hydrophytes (plants
adapted to growth and reproduction in saturated soil conditions) are considered to be inside the wetland boundary,
unless clear evidence of hydric soils or wetland hydrology cannot be established. A species is considered
dominant if it is equal to or greater than 20% areal cover, or exerts a controlling influence on, or defines the
character of a community. Hydrophytic vegetation is determined to be present, when under normal
circumstances:
More than 50% of the dominant plant species in a plant community have an indicator category of Obligate
Wetland (OBL), Facultative Wetland (FACW), and/or Facultative (FAC) as listed in "National List of Plant
Species that Occur in Wetlands: Northwest (Region 9)"
This Plant Indicator Status Categories system was developed for the USFWS National Wetlands Inventory by
Cowardin et al. (1979). The National Plant List Panel, Reed, Porter B., and Jr. modified it in 1988 and 1993. The
Wetland Indicator Category (WIC) used in this report refers to the plants Indicator Symbol as referred to in the
table below. There have been changes to the list since 1993. In 2016 the list was updated and was used for this
report.
National Indicators reflect the range of estimated probabilities (expressed as a frequency of occurrence) of a
species occurring in a wetland versus a non -wetland across the entire distribution of the species. )", Lichvar,
R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016.
The National Wetland Plant List 2016 wetland ratings.
Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X.
Percentages expressed as estimated probability.
Parcel 90121009 End of Van Trojen 23
Indicator Category Indicator Symbol Definition
OBLIGATE WETLAND
PLANTS
OBL Occur almost always, >99%
(estimated probability) in wetlands
Under natural conditions.
<I% in non wetlands.
FACULTATIVE WETLAND FACW Usually occur in wetlands, 67-99%,
PLANTS 1-33% in non -wetlands.
FACULTATIVE PLANTS FAC Equally likely to occur in wetlands,
non -wetlands 34-66%.
FACULTATIVE UPLAND
PLANTS
OBLIGATE UPLAND PLANTS
Hydric Soils
FACU Usually occur in non wetlands 67-99%,
but occasionally found in wetlands
1-33%
UPI, Almost always occur in non -wetlands of
Northwest Region 9, >99%. <1%
in wetlands.
There have been tremendous scientific changes since 1991 in several of the indicators such as the introduction of
aquic conditions to cover the requirements for saturation, reduction, and morphological indicators used to define
the modified aquic moisture regime, and mottles and low chroma colors being replaced by redoximorphic
features. Because of these changes, we consult the US Department of Agriculture, Natural Resource
Conservation Service. 2010. Field Indicators of Hydric Soils in the United States, Version 7.0". G. W. Hurt, L.
M. Vasilas . (eds.), USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils
guidance and decision in making final hydric soils determinations.
Field indicators of hydric soil conditions in this document, (Land Resource Region (LRR) A that includes
Western Washington), are presented here:
(1) ALL SOILS:
Al. Histosols;
A2. Histic Epipedons;
A4. Hydrogen sulfide;
A6. Organic Bodies;
A7. Mucky mineral;
A8. Muck Presence;
A10.2 cm Muck;
All. Depleted Below Dark Surface; and
Al2. Thick Dark Surface
(2) SANDY SOILS:
Parcel 90121009 End of Van Trojen 24
Sl. Sandy Mucky Mineral;
S4. Sandy Gleyed Matrix;
S5.Sandy Redox; and
S6. Stripped Matrix
(3) LOAMY AND CLAYEY SOILS:
Fl. Loamy Mucky Mineral;
F2. Loamy Gleyed Matrix;
F3. Depleted Matrix;
F6. Redox Dark Surface;
F7.Depleted Dark Surface; and
F8. Redox Depressions;
Wetland Hydrolog
Water is the driving force for wetlands. Indications of wetland hydrology are those where the presence of
water has an overriding influence on characteristics of vegetation and soils due to anaerobic and reducing
conditions, respectively.
Areas that are seasonally saturated and/or inundated to the surface for a consecutive number of days for
more than 12.5% of the growing season are wetlands provided the soil and vegetation parameters are met. Areas
wet between 5% and 12% of the growing season in most years may or may not be wetlands. Areas saturated to
the surface for less than 5% of the growing season are non -wetlands. Wetland hydrology exists if field indicators
are present.
Field indicators of wetland hydrology may include, but are not limited to visual observations of
inundation, ponding, soil saturation, oxidized root channels (rhizospheres) associated with living roots and
rhizomes, watermarks, drift lines, water -borne sediment deposition, or wetland drainage patterns.
The growing season starting and ending dates are required to evaluate hydrologic data. For wetland
determinations, the growing season is determined using the local SCS county soils surveys.
Generally, the growing season is calculated based on the "28 degrees F or lower" temperature threshold at a
frequency of "5 years in 10". For much of western Washington at low elevations, the mesic growing season
(March 1 to October 31) has been considered a good rule. However, in some areas of the Puget Sound Lowlands
and coastal areas the growing season occurs all year round because the soil temperature at 19.7 inches below the
soil surface is higher than 41 degrees F.
Plant Identiflcation and Classification
Primary references used for scientific plant names and the endemic and non-native or exotic status of
plants to the North Olympic Peninsula were determined as found in FIora of the Pacific Northwest by Hitchcock
and Cronquist, Univ. of Washington Press, 1972. Other references referred to included: (1) A Field Guide to the
Common Wetland Plants of Western Washington & Northwestern Cre on by Sarah Spear Cooke, editor,
Washington Native Plant Society, May 1997; Wetland plants of Oregon & Washin on by Jennifer Guard, Lone
Pine Publishing, 1995; (2) Plants of the Pacific Northwest Coast- Washington, Oregon, British Columbia &
Alaska edited by Pojar and Mackinnon, D.C. Forest Service, Research Program, Lone Pine Publishing, 1994 and,
D.C. Forest Service, Research Program, Lone Pine Publishing, 1994; and (3) Northwest Weeds by Ronald J.
Taylor, Mountain Press Publishing Company, 1990
Parcel 90121009 End of Van Trojen 25