23511 74th wetland report.pdfWetlalfdWow000es., Act �(J_Z 1-7
DelinGation / Mitigation / Restoration / Habitat Creation / Permit Assistance 9505 19th Avenue S.E.
Suite 106
Everett, Washington 98208
(425) 337-3174
Fax (425) 337-3045
September 21, 2017
Brian Duffy and Nancy Lindstrom
23511 74th Ave W
Edmonds, WA 98026
RE: Wedand Detein ination Report for Snohomish County Tax Parcel
27043200200100
Wedand Resources, Inc. (WRI) performed site visits on August 22, 2017 and September 5, 2017 in
order to locate and evaluate jurisdictional wetlands on and in the vicinity of the .5-acre site located at
23511 74th Ave W. The subject property is located along the western shoreline of Lake Ballinger in
the city of Edmonds, WA. Access is from the north via 74th Ave W. The site is further located as a
portion of Section 32, Township 27N, Range 4E, W.M.
The subject property contains a single-family residence (SIR) and associated residential
improvements. Surrounding land use is primarily high intensity residential (>I unit/acre), shoreline
and a public park. The property is bound to the west by 74tb Ave W, to the north and south by SFRs
and to the east by Lake Ballinger. Lake Ballinger is considered a Shoreline of the state due to its large
physical size (>20 acres). Landward of the ordinary high water mark (OHWM) is designated as
Shoreline Residential 111, while waterward of the OHWM is designated as Aquatic 1.
Vegetation within the subject property consists primarily of maintained lawn to the OHWM with
patches of red -twig dogwood and cattail along the edge of the lake. Extending out into the lake,
vegetation transitions to yellow water lily. Topography of the site is a moderate east aspect slope on
the western portion of the site, flattening to a slight east aspect along the eastern portion of the site.
An existing sewer line crosses the eastern portion of the lawn in a north south orientation. On -site
soils in the non -wetland portion of the site are historic fill (likely from interurban railroad, house
construction, or sewer line installation) throughout much of the yard. From 0 to 16 inches below,
these soils are 2.5Y 4/3 with no redoximorphic features. From 16 to greater than 18 inches, the soils
change to 2.5Y 2.5 / 1. All soils within the non -wetland portion of the site were dry at the time of
inspection. Soils within the wetland portion of the site were 2.5Y 2.5/1 from 0 to 18 inches below.
These soils were moist to saturated at the time of investigation.
METHODOLOGY AND REsum
Prior to conducting the site investigations, public resource information was reviewed to gather
background information on the subject property and the surrounding area in regards to wetlands
streams, and other critical areas. These sources include: the USFWS National Wetlands Inventory
(NWI), WDFW SalmonScape Interactive Map, WDFW Priority Habitat and Species (PHS)
Interactive Map, and the City of Edmonds online GIS Tool.
We Han d De te rm in atio n R ep o rt WRI # 17009
Duffi, 741h Ave W September 21, 2017
Wetland areas were determined using the routine determination approach described in the Corps 0
En6neers Wetlands Delineation Manual (Environmental Laboratory 1987) and the Regional
Supplement to the Co!ps of Enidneers Wetland Delineation Manual: Western Mountains, ValleM
and Coast Rqeon (Version 2.0) (U.S. Army Corps of Engineers 2010). Under the routine
methodology, the process for making a wetland determination is based on three steps:
1) Examination of the site for hydrophytic vegetation (species present and percent cover);
2) Examination of the site for hydric soils;
3) Determining the presence of wetland hydrology.
BOUNDARY DETERMINATION FINDINGS/REsuLTs
Wetlands were rated pursuant to the Washington State Wetland Rating System for Western
Washington (Hruby 2014), as required by Edmonds Municipal Code. Wetlands were also classified
according to the U.S. Fish and Wildlife Service (USFWS) Classifications of Wetlands and Deepwater
Habitats of the United States (Cowardin et al., 1979), also known as the Cowardin Classification
System.
One lake fringe wetland was delineated on the eastern portion of the site immediately adjacent to the
lake. This boundary is clearly defined by topography and the boundary of the historic fill and is
similarly depicted on the City of Edmonds on-line GIS and the National Wetland Inventory. The
wetland unit, as depicted on the attached map, was rated utilizing the Washington State Wettand
Rating System for Western Washington, 2014 as a Category III with a low habitat score. Per EDMC
24,04.020, Category III wetlands with low habitat scores located within shoreline jurisdiction are
designated 60-foot protective buffers from their delineated boundary.
PROPOSED DEVELOPMENT ACTIVITY
A garage addition is proposed on the western side of the existing SFR, approximately 175 feet away
from the wetland and well outside of the designated 60-foot buffer. In addition, the proposed garage
will be constructed on existing impervious surface with landscaping. No impact to Lake Ballinger,
the on -site lake fringe wetland, or its associated buffer will occur as part of this development activity.
The applicant also wants to resolve the existing violation (case #COD2017-0068) related to minor
grading activities within the mowed lawn portion of the site in the vicinity of the lake and lake fringe
wetland. Based on the WRI delineation, the grading occurred well outside of the wetland boundary,
but partially within the designated 60-foot buffer. This area has already been re -contoured to match
the assumed pre-existing grade (based on adjacent elevations). WRI recommends that this area be
further restored by grass seeding to a seed mixture similar to the existing on- and off -site lawn
conditions. This will restore the pre-existing function of the buffer and allowed continued use of the
lawn.
The purpose of this report is to provide a preliminary reporting of on -site critical areas for the
purposes of assisting in the pre -application process for a proposed development activity. As part of the
formal building permit process, a Critical Area Report that meets the requirements of EDMC
23.40.090 and 23.50.030 will be prepared and submitted to the City of Edmonds for review.
Wetland Determination Report 2 WRI # 17009
Duffy 7414 Ave W September 21, 2017
USE OF THis REPORT
This Wetland Determination Report is supplied to Brian Duffy and Nancy Lindstrom as a means of
determining the presence of on -site and adjacent critical areas, as required by the City of Edmonds.
This report is based largely on readily observable conditions and, to a lesser extent, on readily
ascertainable conditions. No attempt has been made to determine hidden or concealed conditions.
The laws applicable to critical areas are subject to varying interpretations and may be changed at any
time by the courts or legislative bodies. This report is intended to provide information deemed
relevant in the applicant's attempt to comply with the laws now in effect.
This report conforms to the standard of care employed by wetland ecologists. No other
representation or warranty is made concerning the work or this report and any implied
representation or warranty is disclaimed.
Wetland Resources, Inc.
4 __ 51- =6� r* � - -
Scott Brainard, PWS
Principal Eco logist
Enclosures: Corps Determination Data Forms (S I -S3)
Ecology Wctland Rating Forms — Western Washington Metland A)
Wetland Determination Map (Sheet I / 1)
City of Edmonds GIS Map
We t1an d De te rm in atio n Rep o rt 3 WRI # 17009
Duffy 7411, Ave W September 21, 2017
WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region
Project/Site: Duffy/Lindstrom WR# 17009 City/County: Edmonds/King — Sampling Date- 9/5
Applicant/Owner: Brian Duffy/Nancy Lindstrom State: WA Sampling Point: S1
Investigator(s): SB Section, Township, Range: 32, 27N,4E
Landform (hilislope, terrace, etc.): hillslope Local relief (concave, convex, none): concave Slope(%): —5%
Subregion (LRR): LRR A Lat: 47.785543 Long: -122.332535 Datum:
Soil Map Unit Name: Alderwood Urban Land, 8 to 15% slopes/Mukilteo Muck NVV1 classification:
Are climatic I hydrologic conditions on the site typical for this time of year? Yes[Z] No[—] (if no, explain in Remarks.)
Are Vegetation EL Soil EL or Hydrology _E]_ significantly disturbed? Are "Normal Circumstances" present? Yeso NoEl
Are VegetatlonEl , Soil El , or Hydrology El naturally problematic? (if needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present?
Hydric Soil Present?
NoFv—(l
Y:: No
Is the Sampled Area
WE]
HV
within a Wetland? YesE3
Wetland Hydrology Present?
Yes N o
Remarks:
Soils were significantly disturbed >50 years ago. Now normal condition.
VEGETATION — Use scientific names of plants.
Absolute Dominant Indicator
Dominance Test worksheet:
Tree Stratum (Plot size:
% Cover Species Status
Number of Dominant Species
1
That Are OBL, FACK or FAC: (A)
2.
Total Number of Dominant
3.
Species Across All Strata: (B)
4.
Percent of Dominant Species
Total Cover
That Are OBL, FACK or FAC. (A/B)
Sapfing/Shrub Stratum (Plot size:.
I
Prevalence Index worksheet:
2.
Total % Cover of: MUItiDIv bv:
3.
OBL species X 1 = 0
4.
FACW species x 2 = 0
5.
FAC species x 3 = 0
Total Cover
FACU species x4= 0
Herb Stratum (Plot size:
UPL species x 5 = 0
1 . Mowed Lawn
Column Totals: 0 (A) 0 (8)
2.
3.
Prevalence Index = B/A
4.
Hydrophytic Vegetation Indicators:
E] Rapid Test for Hydrophytic Vegetation
5.
6.
ElDominance Test is >50%
7.
[] Prevalence index is:53.0'
D morphological Adaptations' (Provide supporting
8.
data in Remarks or on a separate sheet)
Wetland Non -vascular Plants'
E] Problematic Hydrophytic Vegetation' (Explain)
'Indicators of hydric soil and wetland hydrology must
Total Cover
be present, unless disturbed or problematic.
Woody Vine Stratum (Plot size:
Hydrophytic
2.-
Vegetation
Total Cover
Present? YeSE] No[Z]
% Bare Ground in Herb Stratum
Remarks:
Unable to discern species of grass due
to mowing. Likely Agrostis sp.
US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0
SOIL
Sampling Point: S1
Profile Description: (Describe to the depth needed to document the Indicator or confirm the absence of indicators.)
Depth Matrix Redox Features OC2
(inches) Color (moist) 00 Color (moist) % Type' L
Texture Remarks
0-16" 2.5Y 4/3 100
fSl No redox - Old Fill
16-18+" 2.5Y 2.5/1 100
org
'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 21-ocation: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LIRRs, unless otherwise noted.)
Indicators for Problematic Hydric Solls3:
El Histosol (Al) Sandy Redox (S5)
2 cm Muck (Al 0)
H
Histic Epipedon (A2) Stripped Matrix (S6)
Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (Fl) (except MLRA 1)
Very Shallow Dark Surface (TF 12)
E]Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2)
Other (Explain in Remarks)
Depleted Below Dark Surface (Al 1) Depleted Matrix (F3)
Thick Dark Surface (Al2) Redox Dark Surface (F6)
Indicators of hydrophytic vegetation and
El sandy Mucky mineral (si) Depleted Dark Surface (F7)
wetland hydrology must be present,
El sandy Gleyed matrix (S4) Redox Depressions (F8)
unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? YesE] NoWl
Remarks:
Historic fill to a depth of approximately 16"
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply)
Secondary Indicators (2 or more required)
F� Surface Water (Al)
water -stained Leaves (B9) (except MILRA
water -stained Leaves (139) (MLIRA 1, 2,
F-1 High Water Table (A2)
1, 2, 4A, and 4B)
4A, and 4B)
M Saturation (A3)
El Salt Crust (1311)
Drainage Patterns (B 10)
F� Water Marks (131)
11 Aquafic Invertebrates (1313)
Dry -Season Water Table (C2)
Sediment Deposits (132)
El Hydrogen Sulfide Odor (Cl)
Saturation Visible on Aerial Imagery (C9)
Drift Deposits (133)
El Oxidized Rhizospheres along Living Roots (C3)
E] Geomorphic Position (D2)
F� Algal Mat or Crust (B4)
El Presence of Reduced Iron (C4)
F_1 Shallow Aquitard (D3)
iron Deposits (135)
El Recent Iron Reduction in Tilled Soils (C6)
E] FAC-Neutral Test (D5)
Surface Soil Cracks (136)
0 stunted or stressed Plants (D1) (LRR A)
[:] Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7)
[] Other (Explain in Remarks)
El Frost -Heave Hummocks (D7)
sparsely vegetated Concave Surface (138)
Field Observations:
Surface Water Present? Yes[] NoM
Depth (inches):
Water Table Present? YesF] No[D
Depth (inches):
Saturation Present? Yes[] No[Z]
Depth (inches):
Welland Hydrology Present? YesF] No[D
(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 Region
Project/Site: Duffy/Lindstrom WR# 17009 City/County. Edmonds/King Sampling Date: 9/5
Applicant/Owner: Brian Duffy/Nancy Lindstrom - State: WA Sampling Point: S2
Investigator(s): _SB - Section, Township, Range: 32. 27NAE
Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): concave Slope(%): -5%
Subregion (LRR): LRR A Lat: 47.785543 Long: -122.332535 Datum:
Soil Map Unit Name: Alderwood Urban Land, 8 to 15% slopes/Mukilteo Muck NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year.? Yes[Z] NoE] (if no, explain in Remarks.)
Are Vegetation EL Soil El, or Hydrology f__1 significantly disturbed? Are "Normal Circumstances" present? Yes[Z] NoE]
Are Vegetation El, Soil F-1 , or Hydrology F-1 naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophylic Vegetation Present?
Hydric Soil Present?
Welland Hydrology Present?
Ye
Ye:
Yes
No
No
No
Is the Sampled Area
within a Wetland? YesEl No1Z1
Remarks:
Soils were significantly disturbed >50 years ago. Now normal condition.
VEGETATION — Use scientific names of plants.
Absolute
Dominant Indicator
Dominance Test worksheet:
Tree Stratum (Plot size: % Cover
Species Status
Number of Dominant Species
1.
That Are OBL, FACW, or FAC: (A)
2.
Total Number of Dominant
3.
Species Across All Strata: (B)
4.
Percent of Dominant Species
Total Cover
That Are OBL, FACW, or FAC: (A/B)
Sap.ling/Shrub Stratum (Plot size:.
I
Prevalence Index worksheet:
2.
Total-% Cover of: MuftiDIv by:
3.
OBL species X 1 = 0
4.
FACW species x2= 0
5.
FAC species x3= 0
Total Cover
FACU species x4= 0 —
Herb Stratum (Plot size:
UPL species X5. 0 —
1. Mowed Lawn
Column Totals: 0 (A) 0 (13)
3.
Prevalence Index = B/A
4.
Hydrophytic Vegetation Indicators:
E] Rapid Test for Hydrophytic Vegetation
5.
6.
E] Dominance Test is �,5o%
7.
E] Prevalence index is:53.0'
8.
E] morphological Adaptations' (Provide supporting
data in Remarks or an a separate sheet)
9.
E] Wetiand Non -vascular Plants'
10.
E] Problematic Hydrophytic Vegetation' (Explain)
11.
'Indicators of hydric soil and wetland hydrology must
Total Cover
be present, unless disturbed or problematic.
Woody Vine Stratu (Plot size:
Hydrophytic
2.__
Vegetation
Total Cover
Present? Yes[] No[Z]
% Bare Ground in Herb Stratum
Remarks:
Unable to discern species of grass due to mowing. Likely
Agrostis sp.
US Army Corps of Engineers Western Mountains, Valleys, and Coast - Version 2.0
SOIL
Sampling Point: S2
Profile Description: (Describe to the depth needed to document the Indicator or confirm the absence of Indicators.)
Depth M atrix
Redox Features
(inches) Color (moist) 00
Color (moist) % Type' Loe
Texture Remarks
0-18+- 2.5Y 4/3 100
fS1 No redox - Old Fill
'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 21-ocation: PL=Pore Lining, M=Malrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils':
Histosol (Al)
Sandy Redox (S5)
2 cm Muck (A10)
HRed
Histic Epipedon (A2)
Black Histic (A3)
Stripped Matrix (S6)
HLoamy Mucky Mineral (FI) (except MLRA 1)
Parent Material (TF2)
[] Very Shallow Dark Surface (TF 12)
Hydrogen Sulfide (A4)
Loamy Gleyed Matrix (F2)
E] Other (Explain in Remarks)
Depleted Below Dark Surface (Al 1)
HDepleted Matrix (F3)
Thick Dark Surface (Al 2)
Redox Dark Surface (F6)
31ndicators of hydrophytic vegetation and
sandy mucky Mineral (si)
Depleted Dark Surface (F7)
wetiand hydrology must be present,
sandy Gieyed matrix (S4)
Redox Depressions (F8)
unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Sol[ Present? Yeso NoRl
Remarks:
Historic fill to a depth of approximately 16"
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply)
Secondary In icators (2 or more required)
E] Surface Water (Al)
E] Water -Stained Leaves (Bg) (except MLRA
Water -Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2)
1, 2,4A, and 4B)
4A, and 4B)
Saturation (A3)
Salt Crust (1311)
Drainage Patterns (1310)
F]Water Marks (131)
Aquatic Invertebrates (B13)
Dry -season water Table (C2)
F-1 sediment Deposits (132)
El Hydrogen Sulfide Odor (Cl)
E] Saturation Visible on Aerial Imagery (C9)
F] Drift Deposits (B3)
F-1 Oxidized Rhizospheres along Living Roots (C3)
E] Geomorphic Position (D2)
F I Algal Mat or crust (134)
Presence of Reduced Iron (C4)
E] Shallow Aquitard (D3)
F-1 Iron Deposits (B5)
Recent Iron Reduction in Tilled Soils (C6)
E] FAC-Neutral Test (D5)
F-1 Surface Soil cracks (136)
stunted or stressed Plants (D I) (LRR A)
E] Raised Ant Mounds (D6) (LRR A)
F� Inundation Visible on Aerial Imagery (137)
Other (Explain in Remarks)
Frost -Heave Hummocks (D7)
0 Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? YesE] NoM
Depth (inches):
Water Table Present? Yes[—] No[D
Depth (inches):
Saturation Present? YesE] No[Z]
Depth (inches):
Wetland Hydrology Present? Yes[:] No[Z]
(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 Region
Project/Site: Duffy/Lindstrom WR# 17009 CitylCounty: Edmonds/King _ Sampling Date: 9/5
Applicant/Owner: Brian Duffy/Nancy Lindstrom State: WA Sampling Point: S3
Investigator(s): SB Section, Township, Range: 32, 27N,4E
Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): concave Slope (0/6): —5%
Subregion (LRR): LRR A Lat: 47.785543 Long: -122.332535 Datum:
Soil Map Unit Name: Alderwood Urban Land, 8 to 15% slopes/Mukilteo Muck NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes[Z] No[:] (If no, explain in Remarks.)
Are Vegetation 0— Soil El, or Hydrology = significantly disturbed? Are "Normal Circumstances' present? Yes[Z] NoE]
Are Vegetatlon C1, Soil CL, or Hydrology r � naturally problematic? (if needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, Important features, etc.
Hydrophytic Vegetation Present?
Hydric Soil Present?
y
Y::
No
No
Is the Sampled Area
Wetland? YesEl NoEl
Wetland Hydrology Present?
Y
No
within a
Remarks:
Soils were significantly disturbed >50 years ago. Now normal condition.
VEGETATION — Use scientific names of plants.
Absolute
Dominant Indicator
Dominance Test worksheet:
Tree Stratum (Plot size:
% Cover
SDecies? Status
Number of Dominant Species
I
That Are OBL, FACK or FAC: 2 (A)
2._
Total Number of Dominant
3.
Species Across All Strata: 2 (B)
4.
Percent of Dominant Species
Total Cover
That Are OBL, FACW, or FAC: 100 (A1B)
Sapling/Shrub Stratum (Plotsize:.
1. -Cornus sericea
60
FacW
Prevalence Index worksheet:
2. -Vacciniurn sp. (planted blueberry)
20
FacW
Total % Cover of: Multiply by:
3.
OBL species x I = 0
4.
FACW species x 2 = 0
5.
FAC species x 3 = 0
80
Total Cover
FACU species x4= 0
Herb Stratum (Plot size:
UPL species x 5 = 0
1. -Mowed Lawn
100
Unk
Column Totals: 0 (A) 0 (B)
2.
3.
Prevalence Index = B/A
4.
Hydrophytic Vegetation Indicators:
E] Rapid Test for Hydrophytic Vegetation
5.
6.
Dominance Test is >50%
7.
Prevalence index is:53.0'
E] morphological Adaptations' (Provide supporting
8.
data in Remarks or on a separate sheet)
9.
EJ Weiland Non -vascular Plants'
10.
E] Problematic Hydrophytic Vegetation' (Explain)
100
i Indicators of hydric soil and wetland hydrology must
Total Cover
be present, unless disturbed or problematic.
Woody Vine Stratum (Plotsize:.
1 . —
—
Hydrophytic
2.
Vegetation
Total Cover
Present? Yes[Z] NoE]
% Bare Ground in Herb Stratum
Unable to discern species of grass due to mowing. Likely Agrostis sp.
US Army Corps of Engineers Western Mountains, Valleys, and Coast — Version 2.0
SOIL
Sampling Point: S3
Prof ile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix —
Redox Features
(inches) Color (moist) 0/6
Color (moist) % Type' Loc2
Texture Remarks
0-18+- 2.5Y 2.5/1 100
Org Natural soil structure
'Type: C= Concentration. D=Depletion, RM=Reduced Matrix. CS=Covered or Coated Sand Grains. 2 Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Solls3:
Histosol (Al)
Sandy Redox (S5)
2 cm Muck (All 0)
Histic Epipedon (A2)
Stripped Matrix (S6)
Red Parent Material (TF2)
Black Histic (A3)
Loamy Mucky Mineral (FI) (except MLRA 1)
Very Shallow Dark Surface (TF12)
H
Hydrogen Sulfide (A4)
Loamy Gleyed Matrix (F2)
Other (Explain in Remarks)
Depleted Below Dark Surface (All 1)
Depleted Matrix (F3)
Thick Dark Surface (At 2)
Redox Dark Surface (F6)
'31ndicators of hydrophytic vegetation and
Sandy Mucky Mineral (Sl)
Depleted Dark Surface (F7)
wetland hydrology must be present,
Sandy Gleyed Matrix (S4)
Redox Depressions (F8)
unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes[Z] NoE]
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; heck all that apply)
Secondary Indicators (2 or more required)
n/ Surface Water (Al)
0 water -stained Leaves (139) (except MLRA
water -stained Leaves (139) (MLRA 1, 2,
High Water Table (A2)
1, 2, 4A, and 4B)
4A, and 4B)
Saturation (A3)
El Salt Crust (1311)
El Drainage Patterns (B 10)
Water Marks (131)
El Aquatic Invertebrates (1313)
0 Dry -Season Water Table (C2)
Sediment Deposits (132)
Hydrogen Sulfide Odor (CII)
E] Saturation Visible on Aerial Imagery (C9)
Drift Deposits (133)
Oxidized Rhizospheres along Living Roots (C3) E] Geomorphic Position (D2)
Algal Mat or Crust (134)
Presence of Reduced Iron (C4)
Shallow Aquitard (D3)
Iron Deposits (B5)
El Recent Iron Reduction in Tilled Soils (C6)
FAC-Neutral Test (D5)
El surface Soil Cracks (136)
El stunted or stressed Plants (131) (LRR A)
El Raised Ant Mounds (D6) (LRR A)
n Inundation Visible on Aerial Imagery (137)
n Other (Explain in Remarks)
Frost -Heave Hummocks (D7)
El Sparsely Vegetated Concave Surface (BB)
Field Observations:
Surface Water Present? Yes[Z] No[]
Depth (inches): 2'
Water Table Present? Yes[] No n,(
Depth (inches):
Saturation Present? Yes[Z] No[—]
Depth (inches): At surface
Wetland Hydrology Present? Yes[Z] NoQ
(includes capillary fringe)
Describe Recorded Data (stream gauge. monitoring well, aerial photos, previous inspections), it available:
Remarks:
Saturated soils immediately adjacent to inundation.
US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0
Wetland name or number A
RATING SUMMARY — Western Washington
Name of wetland (or ID #): Wetland A
Rated by SB
HGM Class used for rating LAKE FRINGE
Date of site visit:
Trained by Ecology?_/ Yes No Date of training —
Wetland has multiple HGIVI classes?_Y /' N
NOTE: Form is not complete without the figures requested (figures can be combined).
Source of base aerial photo/map ESR1
OVERALL WETLAND CATEGORY III (based on functions Y*" or special characteristics
1. Category of wetland based on FUNCTIONS
Category I —Total score = 23 - 27
Category 11 —Total score 20 - 22
v*' Category III — Total score 16 - 19
Category IV — Total score 9 - 15
FUNCTION
Improving
Water Quality
Hydrologic
I
Habitat
I
Circle the appropriate ratings
,ite Potential
H Eq L
H M
H M
.andscape Potential
M L
H M
H M
Value
M L
H M L
H M L
TOTAL
;core Based on
tatings
8
4
4
16
2. Category based on SPECIAL CHARACTERISTICS of wetiand
CHARACTERISTIC
CATEGORY
Estuarine
11
Wetland of High Conservation Value
I
Bog
Mature Forest
Old Growth Forest
Coastal Lagoon
Interdunal
I II III IV
None of the above
W]
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
Wedand name or number A
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 mop of hydroperiods)
D 1.1, D 4.1
Boundary of area within 150 ft of the wetland (can be added to anotherfigure)
D 2.2, D 5.2
Map of the contributing basin
D 4.3, D 5.3
1 km Polygon: Area that extends 1 km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
H 2. 1, H 2.2, H 2.3
5creen capture of map of 303(d) listed waters in basin (from Ecology website)
D 3.1, D 3.2
Screen capture of list of TIVIDI-s 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
Poncled 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
Dolvgons 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 TIVIDI-s 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
1
Plant cover of trees, shrubs, and herbaceous plants
L 1.2
5
Boundary of area within 150 ft of the wetland (can be added to anotherfigure)
L 2.2
1
1 km Polygon: Area that extends I km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
H 2. 1, H 2.2, H 2.3
2
Screen capture of map of 303(d) listed waters in basin (from Ecology website)
L 3.1, L 3.2
3
Screen capture of list of TIVIDI-s for WRIA in which unit is found (from web)
L 3.3
4
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
S1.3
Plant cover of dense, rigid trees, shrubs, and herbaceous plants
(can be added to figure above)
S4.1
Boundary of 150 ft buffer (can be added to another figure)
S2.1,S5.1
1 km Polygon: Area that extends 1 km from entire wetland edge - including
r)olvgons 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)
S3.1,S3.2
Screen capture of list of TIVIDI-s for WRIA in which unit is found (from web)
SM
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015
Wetland name or number A
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 27] YES - the wetland class is Tidal Fringe - go to 1.1
1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe
Ifyour wetland can be classified as a Freshwater Tidal Fringe use theformsfor Riverine wetlands. If it
is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored This method cannot be used to
score functions for estuarine wetlands.
2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater
and surface water runoff are NOT sources of water to the unit.
INO - go to 3� YES - The wetland class is Flats
Ifyour wetland can be classified as a Flats wetland, use theformfor Depressional wetlands.
3. Does the entire wetland unit meet all of the following criteria?
rhe vegetated part of the wetland is on the shores of a body of permanent open water (without any
plants on the surface at any time of the year) at least 20 ac (8 ha) in size;
Akt least 30% of the open water area is deeper than 6.6 ft (2 m).
INO - go to YES - The wetland class is Lake Fringe (Lacustrine Fringe)
4. Does the entire wetland unit meet all of the following criteria?
rhe wetland is on a slope (slope can be very gradual),
rhe 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,
rhe water leaves the wetland without being impounded.
NO - go to 51
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?
- rhe unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that
stream or river,
rhe 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 -A
INO - go to 6 1 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
I NO - go to YES - The wetland class is Depressionall
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.
INO - go to
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.
HGIVI classes within the wetland unit
being rated
HGIVI class to
use in rating
Slope + Rivenne
EJ
Riverine
Slope + Depressional
EJ
Depressional
Slope + Lake Fringe
11-ake Fringel
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 toyour wetland, or ifyou have
more than 2 HGM classes within a wetland boundary, classify the wetland as Depressionalfor the
rating.
Wetlaild Rati i)g System for Western WA: 2014 Update 4
Rating Form - Effective January 1, 2015
Wetland name or number A
LAKE FRINGE WETLANDS
Water Quality Functions - Indicators that the site functions to improve water quality
L 1.0. Does the site have the potential to improve water quality?
L 1.1. Average width of plants along the lakeshore (use polygons of Cowardin classes):
Plants are more than 33 ft (10 m) wide points = 6
Plants are more than 16 ft (5 m) wide and <33 ft points = 3
6
Plants are more than 6 ft (2 m) wide and <16 ft points = I
Plants are less than 6 ft wide points = 0
L 1,2. Characteristics of the plants in the wetland: Choose the appropriate description that results in the highest
points, and do not include any open water in your estimate of coverage. The herbaceous plants can be either
the dominant form or as an understory in a shrub or forest community. These are not Cowardin classes, Area
of cover is total cover in the unit, but it can be in patches. Herbaceous does not include aquatic bed.
MCover of herbaceous plants is >90% of the vegetated area points = 6
[:]Cover of herbaceous plants is >2 /3 of the vegetated area points = 4
0
MCover of herbaceous plants is >'/3 of the vegetated area points = 3
r7Other plants that are not aquatic bed > '/3 unit points = 3
[DOther plants that are not aquatic bed in > '/.3 vegetated area points = I
[:]Aquatic bed plants and open water cover > '/3 of the unit points = 0
Total for L 1 Add the points in the boxes above
6
Rating of Site Potential If score is: 8-12 = H / 4-7 = M 0-3 = L
Record the rating on the first page
L 2.0. Does the landscape have the potential to support the water quality function of the site?
L 2.1. Is the lake used by power boats? Y e s = 1 LN a.-:_Oj
0
L 2.2. Is > 10% of the area within 150 ft of wetland unit on the upland side in land uses that generate pollutants?
EED No = 0
1
L 2.3. Does the lake have problems with algal blooms or excessive plant growth such as milfoil? =No=O
1
Total for L 2 Add the points in the boxes above
2
Rating of Landscape Potential: If score is: V 2 or 3 = H I = M 0 = L
Record the rating on the first page
L 3.0. Is the water quality improvement provided by the site valuable to society?
L 3.1. Is the lake on the 303(d) list of degraded aquatic resources?
e =s-- 1
No 0
1
L 3.2. Is the lake in a sub -basin where water quality is an issue (at least one aquatic resource in the b ' ' th
303(d) list)? e "S__ 1 N o 0
1
L 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quajUy_7Awwer
if there is a TMDLfor the take or basin in which the unit isfound. 6s= 2 jNo
YES
= 0
2
Total for L 3 Add the points in the boxes above
4
Rating of Value If score is: V 2-4 = H 1 = M 0 = L
Wetiand Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 20 15
Record the rating on the first page
0
SCRUB -SHRUB
EMERGENT VEGETATION
PERMANENTLY FLOODED
150'FROM I/VL BOUNDARY
Duffy - 74th Ave W
WETLAND RATING FIGURE Al - WETLAND A
Scale 11" = 100'
0 100 200
Wetla4womag /W V&7LAND PATING
Wetland A
9505 1911, k,�- S.E Suite t06 E-,ett,%Vmh,nqt.. 98703
Phone: (425) 337-3174
ax: (425) 337-3045 Brian Duffy Figure Al
Aandresources com Z3511 74th Ave W WRI Job # 17009
Edmonds. WA 98026 Dr���
[--]UNDISTURBED
-]LOW/MOD.
INTENSITY
HIGH
INTENSITY
ACCESSIBLE
HABITAT
WETLAND
I KM FROM
WETLAND
CONTRIBUTING
BASIN
Duffy - 74th Ave W
WETLAND RATING FIGURE A2 - WETLAND A
k1lb qq
Scale I" = 1,000'
=mPmm=mm6==m=mmwmmm?�
0 1,000 2,000
yVetho%4? /m WETLAND RATING
WettandA
Phone: (425) 337-3174
Fax: (425) 337-3045 Brian Duffy Figure A2
Emait: maitbox(zwettandresources.com 2 3511 74th Ave W WRI Job # 17
Edmonds WA 98026 Drawn by: SBI
Duffy - 74th Ave W
WETLAND RATING FIGURE A3 - WETLAND A
bb - 44
Scale 1 2,500'
2,500 5,000
WETLAND
WetlaldRAw1w /W WETIMD RATING
%AWOL -A) "Out QCK�, -At--A w1u WetlandA
AQUATIC RESOURCES "05 Ifth M"Ue S.E. Wke 106 Ew"I.V"Mal
ON THE 303(d) LIST Phone: (425) 337-3174
Fax: (425) 337-3045 Brian Duffy Figure A3
Email; mai(boxowet(andresources.com 2 3511 74th Ave W WRI Job # 17009
Edmonds, WA 98026 Drawn by: SBI
Duffy - 74th Ave W
WETLAND RATING FIGURE A4 - WETLAND A
WRIA 8: Cedar-Sammamish
The following table lists overview Information for water quality improvement
projects (including total maximum daily loads, or TMDLs) for this water resource
Inventory area (WRIA). Please use links (where available) for more Information on
a project.
Counties
• King
• Snohomish
Waterbody Name
Pollutants
Status**
TMIDL Land
Ballinger Lake
Total Phosphorus
Approved by EPA
Tricla Shoblom
425-649-7288
Bear -Evans Creek Basin
Fecal Collform
Approved by EPA
loan Nolan
Approved by EPA
425-649-4425
Dissolved Oxygen
Temperature
Co'ta Lak
Total Phosphorus
Approved by EPA
Tricla Shoblom
Has an Implementation
425-649-7288
plan
Issacivah Creek Basin
Fecal Collform
Approved by EPA
Joan Nolan
Fecal Collform
Approved by EPA
425-649-4425
Uttle Bear Cree
Ralph Syrice
Tributaries:
425-649-7036
Trout Stream
Great Dane
Creek
Cutthroat
Creek
North Cree
Fecal Collform
Ralph Svrice
Approved by EPA
Has an implementation
425-649-7036
plan
Pipers Creek
Fecal Collform
Approved by EPA
loan Nolan
425-649-4425
Sammamish Rive
Dissolved Oxygen
Field work starts summer
Ralph Svricek
Temperature
2015
Approved by EPA
425-649-7036
Swamu) Cree
Fecal Coliform
Ralph Svrlcek
Has an implementation
425-649-7036
plan
* * Status will be listed as one of the
EPA, Under Development or Implementation
wft W I /W
DA�M�, I MIMM� I --- .
95M i9th AwMe S.E. SUIte 106 EW1.tt.W4k%h1,W0�93n3
Phone: (425) 337-3174
Fax: (425) 337-3045
Email: mailbox@wetLandresources.com
LE
711
WETLAND RATING
Wetland A
Brian Duffy Figure A4
23511 74th Ave W WRI Job # 17009
,Edmonds, WA 98026 Drawn by: SBI
BACEOUS
ER
ER PLANT
ER
Duffy - 74th Ave W
WETLAND RATING FIGURE A5- WETLAND A
Scale 1 40'
0 40 120
) wlwd FV a M ww 91 /M
OMVKW� MAWM.' WVX�! WMA (MAW f tr,�AAYA^-
9M 19th AMW SA. SdRe 106 ( C C t.~VWM MOG
Phone: (425) 337-31 74
Fax: (4Z5) 337-3045
Email: mailboxewettandresources.com
WETLAND RATING
Wetland A
Brian Duffy Figure A5
2 3 511 74th Ave W WRI Job # 17009
,Edmonds, WA 98026 Drawn by: SB
WETLAND DETERMINATION MAP
DUFFY - 74TH AVE
PORTION OF SECTION 32, TOWNSHIP 27N, RANGE 4E, W.M.
PLEASE NOTE: WETLAND BOUNDARIES HAVE BEEN LOCATED \AATH A HAND HELD GPS AND NOT SURVEYED.
VVE'rLAND
OHM
BUFFER Scale 1 40'
fie 06ENd�
DATA 6 2b 4b 60 so
Wetland Determination Map
Ouffy - 74th Ave W
City of Edmonds
150 19rh - S E, ", 104 E--WAV�9� "M
Phone: (425) 337-3174 Shoot 1/1
Fax: (425) 337-3045
Emait: mailbox@wettandresources.com [,all D2 WRI Job,#: 17009
25311 74' A�o W
Ed.nds, WA 98026 ..,=-zGSj
W City of Edmonds
Duffy 74th Ave W
L,go,6
A
1 564
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