REVIEWED BLD2024-0257 WETLAND REPORT RECEIVED 9_25 23144 !Bockretsion_DET RPT and Functional Assessment_PKGRECEIVED
9/25/23
CITY OF EDMONDS
DEVELOPMENT
SERVICES DEPARTMENT
BLD2024-0257
ENVIRONMENTAL CONSULTING
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Reviewed by
City of Edmonds ;
Planning Division '
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WETLAND & STREAM DETERMINATION
AND FUNCTIONAL ASSESSMENT REPORT
FOR
152010THPLACE N
EDMONDS., WA
Wetland Resources, Inc. Project #23144
Prepared By
Wetland Resources, Inc.
9505 19th Avenue SE, Suite 106
Everett, WA 98208
(425) 337-3174
Prepared For
Daniel Bockretsion
22422 97,h Avenue W
Edmonds, WA 98020
June 20, 2023
TABLE OF CONTENTS
1.0 INTRODUCTION.........................................................................................................................1
2.0 SITE DESCRIPTION.....................................................................................................................1
3.0 REVIEW OF PUBLICLY AVAILABLE DATA...................................................................................2
4.0 WETLAND AND STREAM DETERMINATION...............................................................................3
4.1 WETLAND AND STREAM DETERMINATION METHODOLOGY..........................................................3
4.1.1 Hydrophytic Vegetation Criteria.................................................................................................3
4.1.2 Soils Criteria.................................................................................................................................3
4.1.3 Hydrology Criteria.......................................................................................................................3
4.2 WETLAND AND STREAM DETERMINATION RESULTS.......................................................................4
4.2.1 Fruitdale Creek.............................................................................................................................4
5.0 WILDLIFE....................................................................................................................................4
6.0 FUNCTIONAL ANALYSIS.............................................................................................................5
7.0 SUMMARY AND CONCLUSION....................................................................................................6
8.0 USE OF THIS REPORT................................................................................................................7
9.0 REFERENCES..............................................................................................................................8
LIST OF FIGURES
FIGURE 1 -AERIAL VIEW OF SUBJECT PROPERTY (NOT TO SCALE) ..................................................1
FIGURE 2-FRUITDALE CREEK IN THE VICINITY OF THE SUBJECT PROPERTY. YELLOW DASHED
LINE DEPICTS THE LIMIT OF THE FUNCTIONAL STREAM BUFFER. IMAGE SOURCE: CITY OF
EDMONDS GIS INTERACTIVE ONLINE MAP. NOT TO SCALE.).........................................................6
LIST OF APPENDICES
APPENDIX A: WETLAND & STREAM DETERMINATION MAP SHEET 1 / 1
ii
1.0 INTRODUCTION
Wetland Resources, Inc. (WRI) conducted a site investigation on June 5, 2023, to identify and
evaluate jurisdictional wetlands and fish and wildlife habitat conservation areas on and in the
vicinity of the 0.26-acre property located at 1520 10th Place N, in Edmonds, Washington, (parcel
#27031300409000). The site is identified as a portion of Section 13, Township 27N, Range 03E,
W.M. and is located within the Puget Sound Drainage sub -basin in the Cedar-Sammamish
Watershed, Water Resources Inventory Area (WRIA) 8.
2.0 SITE DESCRIPTION
The subject property is developed with a single-family residence. Vegetation on the site consists
of maintained lawn and landscaping. Topography of the site slopes gently to the northwest. Soils
on the site are mapped by the Natural Resource Conservation Service (NRCS) web soil survey as
Alderwood-Urban land complex, two to eight percent slopes. Surrounding land use consists of
single-family residential use. Fruitdale Creek is located to the northeast of the site.
Figure 1 -Aerial view of subject property (Not to scale)
1520 101h Place N
WRI #23144
Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
3.0 REVIEW OF PUBLICLY AVAILABLE DATA
Prior to conducting the site investigation, public resource information was reviewed to gather
background information on the subject property and the surrounding area in regard to Wetlands
and Fish and Wildlife Habitat Conservation Areas. These sources included the following:
USDA/ARCS Web Soil Survey
Soils on the site are mapped Alderwood-Urban land complex, two to eight percent slopes. This
soil map unit is described as moderately well drained and contains inclusions of Norma (five
percent), McKenna (five percent), and Terric Medisaprists (five percent) which are hydric soils
typically found in depressions.
City of Edmonds GIS Interactive Map
The City of Edmonds GIS interactive online map depicts Fruitdale Creek and two associated
wetlands to the northeast of the property.
Snohomish County PDS Map Portal
PDS Map Portal depicts Fruitdale Creek as a Seasonal Non -Fish Habitat Stream to the northeast
of the property. A wetland associated with Fruitdale Creek is also mapped to the northeast of the
subject site.
USFWS National Wetlands Inventory (NWI)
NWI depicts a Riverine (R4SBC) feature in the same location as Fruitdale Creek on the above
referenced resources.
WDNR Rare Plant and Ecosystem Locations
This resource does not depict any features on or near the subject property.
DAR Forest Practices Application Mapping Tool (FPAMT)
This resource depicts the portion of Fruitdale Creek near the subject property as a Type F
stream.
WDFW SalmonScape Interactive Mapping System
SalmonScape does not depict any salmonid species in the vicinity of the property.
Northwest Indian Fisheries Commission - Statewide Washington Integrated Fish Distribution Mapping
Tool (SWIFD)
SWIFD does not document any salmonid species in the vicinity of the property.
WDFW Priority Habitat and Species (PHS) Interactive Map
PHS does not depict any features on or in the vicinity of the site.
1520 101h Place N
WRI #23144
Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
4.0 WETLAND AND STREAM DETERMINATION
4.1 WETLAND AND STREAM DETERMINATION METHODOLOGY
Ordinary High Water Mark (OHWM) boundaries of lakes, streams, and marine waters are
determined through use of methodology presented in The Washington State Department of
Ecology document Determining the Ordinary High Water Mark for Shoreline Management Act Compliance in
Washington State (Anderson et al 2016). Designation of streams and lakes is consistent with the
water typing system established in the Washington Administrative Code (WAC) 222-16-030.
Wetland boundaries were determined using the routine approach described in the Corps of
Engineers Wetlands Delineation Manual (Environmental Laboratory 1987) and the Regional Supplement
to the Corps of Engineers Wetland Delineation Manual.• Western Mountains, Valleys, and Coast Region (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
4.1.1 Hydrophytic Vegetation Criteria
The manuals define hydrophytic vegetation as the sum total of macrophytic plant life that occurs
in areas where the frequency and duration of inundation or soil saturation produce permanently
or periodically saturated soils of sufficient duration to exert a controlling influence on the plant
species present. One of the most common indicators for hydrophytic vegetation is when more
than 50 percent of a plant community consists of species rated "Facultative" and wetter on lists of
plant species that occur in wetlands.
4.1.2 Soils Criteria
The manuals define hydric soils as those that formed under conditions of saturation, flooding, or
ponding long enough during the growing season to develop anaerobic conditions in the upper
part. Field indicators are used for determining whether a given soil meets the definition for hydric
soils.
4.1.3 Hydrology Criteria
The 2010 Regional Supplement defines wetland hydrology as "areas that are inundated (flooded
or ponded) or the water table is less than or equal to 12 inches below the soil surface for 14 or
more consecutive days during the growing season at a minimum frequency of 5 years in 10."
During the early growing season, wetland hydrology determinations are made based on physical
observation of surface water, a high water table, or saturation in the upper 12 inches. Outside of
the early growing season, wetland hydrology determinations are made based on physical
1520 101h Place N
WRI #23144
Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
evidence of recent inundation or saturation (i.e. water marks, surface soil cracks, water -stained
leaves).
4.2 WETLAND AND STREAM DETERMINATION RESULTS
No wetlands or streams were identified on the subject property. Vegetation on the site consists of
maintained lawn and landscaping. Soils on the site are very dark brown (10YR 2/2) loam to a
depth of at least 18 inches and were very dry at the time of the site investigation. No hydric soil
indicators or hydrology indicators were observed.
Fruitdale Creek is located approximately 60 feet northeast of the property. It flows from
southeast to northwest and includes two ponded areas located on either side of a private
driveway that extends beyond the eastern terminus of Silver Way.
4.2.1 Fruitdale Creek
Cowardin Classificiation: Riverine, Upper Perennial, Unconsolidated Bottom
City of Edmonds Classification: Type F, nonanadromous fishbearing
City of Edmonds Buffer: 75 feet
Fruitdale Creek contains habitat that may support fish populations. Per Edmonds Community
Development Code (ECDC) 23.90.010(A)(1), Fruitdale Creek is not identified as an anadromous
fishbearing stream in the City of Edmonds, and no use of this stream by salmonids is
documented on other publicly available resources (WDFW SalmonScape and SWIFD).
Therefore, this stream is classified as a Type F, nonanadromous fishbearing stream. Pursuant to
ECDC 23.90.040(D)(1), Type F nonanadromous fishbearing streams receive 75-foot standard
buffers.
5.0 WILDLIFE
The subject property is developed with a single-family residence with maintained lawn and
landscaping. The site provides minimal habitat for wildlife.
Mammalian species expected to occur on or near the site include gray squirrel (Saurus spp.) and
raccoon (Procyon lotor).
Given the habitat available, it is expected that the following avian species may use the area:
American Crow (Corous brachyrhynchos), American Robin (Turdus migratorius), Song Sparrow
(Melospiza melodic), Black -capped Chickadee (Poecile atricapilla), and Dark -eyed Junco (Junco
hyemalis).
These lists are not intended to be all-inclusive and may omit some species that utilize or could
utilize the area. No species of concern are documented on or near the site.
1520 101h Place N 4 Wetland & Stream Determination and
WRI #23144 Functional Assessment Report
,June 20, 2023
6.0 FUNCTIONAL ANALYSIS
The standard prescribed 75-foot protective buffer of Fruitdale Creek would extend onto the
eastern corner of the subject property. However, the on -site portion of the buffer is physically
and functionally isolated from the stream by existing structures and paved areas. The basis of this
assessment comes from review and analysis of Best Available Science on the topic of buffer
functions. Chapter 5 of the Washington State Department of Ecology guidance document
entitled "Wetlands in Washington State Volume 1: A Synthesis of the Science" (Sheldon, et. al. 2005)
provides a comprehensive analysis of buffer functions. The following, taken directly from the
aforementioned document, is a list of the functions provided by buffers: 1.) removing sediment;
2.) removing excess nutrients; 3.) removing toxics; 4.) influencing microclimate, 5.) maintaining
adjacent habitat; 6.) screening adjacent disturbances; and 7.) maintaining habitat connectivity.
Functions numbered 1-3 relate to water quality improvement. Based on topography of the site
and surrounding area, it appears that stormwater from the subject property flows to the west and
northwest to loth Place N where it is directed to the west to a catch basin and enters the piped
stormwater system. As surface water from the site does not flow to Fruitdale Creek, the on -site
portion of the prescribed buffer does not provide water quality improvement function for this
stream.
Function 4 relates to the influence of the buffer on microclimate. The presence of development to
the east of the subject site, between the site and Fruitdale Creek, interrupts the microclimate
created by vegetation adjacent to the stream. Therefore, the on -site portion of the prescribed
buffer does not influence the microclimate of Fruitdale Creek.
Functions numbered 5-7 relate to wildlife habitat. Buffer isolation created by existing structures
and pavement between the subject site and Fruitdale Creek eliminates connectivity of the subject
property to the streams for all but avian species. Due to the disconnection, the on -site portion of
the prescribed buffer does not have the opportunity to provide a significant influence on wildlife
habitat functions of the stream.
Pursuant to ECDC 23.40.220(C)(4), adjacent areas that are physically separated from a stream or
wetland due to existing, legally established structures or paved areas may be exempt from the
prescribed buffer widths when it is demonstrated that the interrupted buffer area is functionally
isolated. Because there is no biological habitat connection nor a surface water connection
between the stream and the subject property as discussed above, WRI has determined that the
on -site portion of the stream buffer is physically and functionally isolated from the stream
channel. The functional buffer adjacent to the stream terminates at the edge of existing structures
and pavement and does not extend onto the subject property. Figure 2 shows the location of the
stream relative to the subject property, physically separated by existing development, and the
limits of the functional stream buffer.
1520 101h Place N 5 Wetland & Stream Determination and
WRI #23144 Functional Assessment Report
,June 20, 2023
Figure 2 -Fruitdale Creek in the vicinity of the subject property. Yellow dashed line depicts the
limit of the functional stream buffer. (Image source: City of Edmonds GIS interactive online
map. Not to scale.)
7.0 SUMMARY AND CONCLUSION
Fruitdale Creek is located to the northeast of the subject property. It is a Type F nonanadromous
fishbearing stream and receives a standard 75-foot buffer. The functional buffer on Fruitdale
Creek is interrupted by existing, legally established structures and pavement and therefore does
not extend onto the subject property. No other wetlands or streams occur in the vicinity of the
subject property. Therefore, no stream or buffer impacts will result from development on the site.
1520 101h Place N
WRI #23144
6 Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
8.0 USE OF THIS REPORT
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 environmentally 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.
The work for this report has conformed 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.
Joie Goodman, PWS
Senior Ecologist
1520 10th Place N
WRI #23144
Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
9.0 REFERENCES
Anderson, P.S., Meyer, S., Olson, P., and E. Stockdale. 2016. Determining the Ordinary High Water
Mark for Shoreline Management Act Compliance in Washington State. Washington State
Department of Ecology. Publication # 16-06-029.
Cowardin, et al., 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S.
Department of the Interior. FWS/OBS-79/31. December 1979.
Edmonds, City of. 2023a. Edmonds Community Development Code, Title 23 Natural
Resources. Ordinance 4300, passed April25, 2023.
Edmonds, City of. 2023b. City of Edmonds GIS Map.
https://mgps.edmondswa.gov/Html5Viewer/?viewer=Edmonds SSL.HTML
Munsell Color. 2012. Munsell Soil Color Book. Munsell Color, Grand Rapids, MI.
Northwest Indian Fisheries Commission. 2023. Statewide Washington Integrated Fish Distribution Web
Map. https://nwifc.org/about-us/habitat/sshiap/
Sheldon, D., T. Hruby, P. Johnson, K. Harper, A. McMillan, T. Granger, S. Stanley, and E.
Stockdale. March 2005. Wetlands in Washington State - Volume ]:A Synthesis of the Science.
Washington State Department of Ecology. Publication #05-06-006. Olympia, WA.
Snohomish County. 2023. PDSMap Portal online interactive mapping tool.
https://snohomishcounWya.gov/3752/PDS-Mgp-Portal
U.S. Army Corps of Engineers. 2020. National Wetland Plant List, version 3.5. U.S. Army
Corps of Engineers Engineer Research and Development Center Cold Regions Research
and Engineering Laboratory, Hanover, NH. http://wetland-plants.usace.army.mil/
US Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation
Manual: Western Mountains, Valleys, and Coast Region (Version 2.0). Vicksburg, MS
US Department of Agriculture -Natural Resources Conservation Service. 2023. Web Soil Survey.
http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm
US Fish and Wildlife Service. 2023. National Wetlands Inventory (NWI) Online Mapper.
http://www.fws.gov/wedands/Data/Mapper.html.
Washington Department of Fish and Wildlife. 2023a. Priority Habitat and Species (PHS) Interactive
Map. https://geodataservices.wdfw.wa.gov/hp/phs/
Washington Department of Fish and Wildlife. 2023b. SalmonScape Online Mapping Application.
http://apps.wdfw.wa.gov/salmonscape/map.html
1520 1Oth Place N 8 Wetland & Stream Determination and
WRI #23144 Functional Assessment Report
,June 20, 2023
Washington Department of Natural Resources. 2023a. Forest Practices Application Mapping Tool
(FPAM7). https://fortress.wa.gov/dnr/protectiongis/fpamt/index.html#
Washington Department of Natural Resources. 2023b. Washington Natural Heritage Program
Data Explorer. Washington Department of Natural Resources, Natural Heritage Program.
Olympia, WA.
https://eNperience.arcgis.com/experience/ 174566100f2a47bebe56db3fbf78b5d9/
1520 101h Place N
WRI #23144
9 Wetland & Stream Determination and
Functional Assessment Report
,June 20, 2023
APPENDIX A:
WETLAND & STREAM DETERMINATION MAP
WETLAND & STREAM DETERMINATION MAP
1520 10 TH PLACE N
PORTION OF SECTION 13, TOWNSHIP 27N, RANGE 3E, W.M.
1 �1, ti �•
.ts
A
Scale 1" = 50'
0 25 50 75 100
APPROX ORDINARY HIGH WATER MARK
LIMIT OF FUNCTIONAL BUFFER
DIRECTION OF FLOW
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OalnaaYon/AStioa4on/Rasbret'gn/HalilalGreallonl Permit Assistance
9505 19th Avenue S.E. Suite 106 Everett,washinaton 98208
Phone: (425) 337-3174
Fax: (425) 337-3045
Email: mailbox@wetlandresources.com
WETLAND & STREAM
DETERMINATION MAP
1520 10TH PLACE N
EDMONDS, WA
Sheet 1/1
Daniel Bockretsion WRI #: 23144
22422 97th Avenue W Drawn by: JG
Edmonds, WA98020 Date:06.20.2023