CRA20010145111111111
Critical Areas Checklist CA File �"
(trR oaf 610
Site Information (soils/topography/hydrology/vegetation)
1. Site Address/ Location: V x X HA I H �r
2. Property Tax Account Number: 00 10 00 5- (1>Q
3. Approximate Site Size (acres or square feet): Q M COn I
4. Is this site currently developed? _ yes; k no.
If yes; how is site developed? FI U_
5. Describe the general site topography. Check all that apply.
Flat: less than 5-feet elevation change over entire site.
Rolling: slopes on site generally less than 15% (a vertical rise of 10-feet over a horizontal
distance of 66-feet).
Hilly: slopes present on site of more than 15% and less than 30% ( a vertical rise of 10-feet
over a horizontal distance of 33 to 66-feet).
Steep: grades of greater than 30% present on site (a vertical rise of 10-feet over a horizontal
distance of less than 33-feet).
Other (please describe):
6. Site contains areas of year-round standing water: i2 •• Approx. Depth:
.1pa IT rIS)t4i
7. Site contains areas of seasonal standing water: so ; Approx. Depth:
What season(s) of the year?
8. Site is in the floodwayfloodplainof a water course.
9. Site contains a creek or an area where water flows across the grounds surface? Flows are year-round?
Flows are seasonal? M-k ' (What time of year? Q ti
10. Site is primarily: forested r� ; meadow ; shrubs ; mixed
rubs etc)
urban landscaped (lawnsh
11. Obvious wetland is present on site:
For City Staff Use Only -
1.
2.
Plan Check Number. if annlicable?
Site is Zoned?
3. SCS mapped s
4. Critical Areas inventory or C.A. map indicates Critical Area on site? 05j
5. Site within designated earth subsidence landslide hazard area?
DETERMINATION
TUDY WAIVER
by. �� Date:
Critical Areas Checklist.doc/3.19.2001 -�>PAA ( J (X KK-j0
(,—LL0U 1 / -3 /C Q
�nC. 189v
City of Edmonds
Development Services Department
Planning Division
Phone: 425.771.0220
Fax: 425.771.0221
The Critical Areas Checklist contained on this form is to
be filled out by any person preparing a Development
Permit Application for the City of Edmonds prior to
his/her submittal of the application to the City.
The purpose of the Checklist is to enable City staff to
determine whether any potential Critical Areas are, or
may be, present on the subject property. The information
needed to complete the Checklist should be easily
available from observations of the site or data available at
City Hall (Critical areas inventories, maps, or soil
surveys).
Date Received: (I i310 I
City Receipt #:
Critical Areas File #:
Critical Areas Checklist Fee: $46-W-
Date Mailed to ADDlicant:
A property owner, or his/her authorized representative,
must fill out the checklist, sign and date it, and submit it
to the City. The City will review the checklist, make a
precursory site visit, and make a determination of the
subsequent steps necessary to complete a development
permit application.
Please submit a vicinity map, along with the signed copy
of this form to assist City staff in finding and locating the
specific piece of property described on this form. In
addition, the applicant shall include other pertinent
information (e.g. site plan, topography map, etc.) or
studies in conjunction with this Checklist to assistant staff
in completing their preliminary assessment of the site.
The undersigned applicant, and his/her/its heirs, and assigns, in consideration on the processing of the application agrees
to release, indemnify, defend and hold the City of Edmonds harmless from any and all damages, including reasonable
attorney's fees, arising from any action or infraction based in whole or part upon false, misleading, inaccurate or
incomplete information furnished by the applicant, his/her/its agents or employees.
By my signature, I certify that the information and exhibits herewith submitted are true and convect to the best. of my
knowledge and that I am authorized to file this application on the behalf of the owner as listed below.
SIGNATURE OF APPLICANT/AGENT
DATE
Property Owner's Authorization
By my signature, I certify that I have authorized the above Applicant/Agent to apply for the subject land use application,
and grant my permission for the public officials and the staff of the City of Edmonds to enter the subject property for the
purposes of inspection and posting attendant to this application.
SIGNATURE OF OWNER
PLEASE PRINT CLEARLY
Owner/A plicant:
� 1 17 of CC
Name
I Z 1 5 VIE -
Street Address
iM/00412�? ()A
City State Zip
Telephone:
Email address (optional):
DATE
Applicant Representative:
Name
Street Address
City State Zip
Telephone:
Email Address (optional):
Critical Areas Checklist.doc/3.19.2001
City of Edmonds
Critical Areas Determination
Applicant: City of Edmonds Determination #: CA-01-145
Project Name: Surplus Property Permit Number:
Site Location: 87xx Main Street Property Tax Acct #: 00 3736 005 00 004
Project Description:
Non -Project Specific
Determination: Study Required:
During review and inspection of the subject site, it was found that the site appears to contain
and/or is adjacent to a number of critical areas, including a Erosion Hazard Area and a possible
Wetland pursuant to Chapter 20.15B of the Edmonds Community Development Code (ECDC).
Based on these findings, prior to submission of any development permit, you will be required
satisfy the requirements of ECDC 20.15B by completing the following:
Erosion Hazard Area
The site is also in an area designated on the Critical Areas inventory as Slopes with Erosion
Potential. All proposed development must have an erosion control plan approved by the City of
Edmonds Engineering Department.
Possible Wetland
My site investigation has shown that the site has a number of wetland plants and a portion of the
site contains open standing water which is probably draining a natural stream or wetland. Based
on the above findings, a Critical Areas Study is required to determine the hydrology of the area
and to delineate the approximate boundaries of any wetland or stream and identify its buffers.
The required qualified critical areas consultant needed to perform the study shall be a specialist
in botany, fisheries, wetland biology, and/or hydrology with a minimum of two years' field
experience with wetlands and/or streams in the Pacific Northwest. All critical areas studies shall
be performed as three party agreements with the city selecting the consultant and the property
owner or applicant paying the fees.
The qualified critical areas consultant shall perform the following:
Classification of the stream and/or wetland pursuant to the criteria established in ECDC
Section 20.15B.060(A)(4) and (5).
2. Delineate the edge of the stream and/or wetland on the site.
3. State any mitigating measures appropriate to preserving and protecting the stream and/or
wetland.
After the qualified critical areas consultant has delineated the stream and/or wetland boundary, a.
surveyor licensed by the State of Washington must perform the following:
1. Physically mark the edge of the wetland.
2. Delineate the required buffer (see ECDC 20.15B.120.A and 20.15B.130.C).
3. Delineate the required building setback from the buffer (requited setback is 15 feet).
4. Create a map showing the wetland, the buffer and the building setback.
If the water from this site flows into Puget Sound, therefore, the applicant must contact the
Department of Fish & Wildlife, have them review the site and submit a letter determining the
impacts of development on this site and, if necessary, recommend mitigation measures to ensure
protection of the habitat/stream.
Both the qualified critical areas consultant and the Land Surveyor shall enter into a three party
contract with the applicant and the City of Edmonds as required in ECDC 20.15B.140(D), where
the applicant pays for the study. The applicant may suggest qualified professionals for the City's
approval.
If the results of the Critical Areas Study determine that the lot may not be developed, the
applicant may apply for a Reasonable Use Exception and Variance pursuant to ECDC
20.15B.170A and 20.15B.040C).
If the property owner wishes to apply for a specific development permit which they feel
would not impact the Critical Areas located on the site, they may submit their proposal to
the Planning Department for review. If the Planning Department finds that the proposed
development permit will not adversely impact a Critical Areas or its buffers, a conditional
waiver may be issued on a project by project basis.
November 16. 2
Name Signature Date
2
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URS
January 3, 2002
Mr. Robert Chave
City of Edmonds
Community Services Department, Planning Division
121 5`h Avenue North
Edmonds, WA 98020
RE: Wetlands Assessment 86th Place and Main Street
Dear M. Chave:
e�VL+- Raa SuR�er
I have enclosed a summary report for the wetlands reconnaissance completed by URS Corporation (URS)
on December 26, 2001 on the city -owned parcel located at 86"' Place and Main Street. The purpose of the
reconnaissance was to provide a qualitative assessment of the extent of the parcel that in our professional
judgement, is likely to be considered jurisdictional wetlands under Section 404 of the Clean Water Act
(33USC§ 1344; 33CFR§323) and therefore subject to the conditions of the Edmonds Critical Areas
Ordinance (Edmonds Development Code Municipal Code regulations EDCMC 20.15B Critical Areas).
URS completed the reconnaissance -level assessment using guidance provided by the 1987 U.S. Army Corps
of Engineers Wetlands Delineation Manual and the 1997 Washington State Wetland Identification and
Delineation Manual. A suspect wetland area approximately 6,200ft2 in size was identified in eastern portion
of the property. The boundaries of this area were flagged with flagging tape for future identification,
evaluation, and surveying. This wetland area is classified as a palustrine scrub -shrub wetland dominated by
broad-leaved deciduous plants (PSS1). The palustrine system includes all nontidal wetlands dominated by
trees, shrubs, emergent herbaceous plants, mosses, and/or lichens.
The wetland area meets the criteria for a Category 3 wetland according to EDCMC 20.15.B.130 as its size is
less than 1 acre, but greater than 2,500 ft2. Buffer requirements for a Category 3 wetland restrict
development within a 25-foot wide buffer surrounding the wetland (EDCMC 20.15.B.130).
Mr. Chave, URS appreciates the opportunity to work with you on this project. Should you have any
questions or wish to discuss this project in greater detail, please feel free to call me at 206/438-2084.
Very truly yours,
rry DeMuro
Sr. Project Manager
Cc: D. Every
G. Mazer
URS Corporation
Century Square
1501 4th Avenue, Suite 1400
Seattle, WA 98101-1616
Tel: 206.438.2700
Fax: 206.438.2699
k G,
WETLANDS RECONNAISSANCE
86TH PLACE AND MAIN STREET
EDMONDS, WASHINGTON
Introduction
URS Corporation, (URS) conducted a reconnaissance -level assessment to determine the presence,
extent, and character of wetlands on a property located immediately south of the junction between
Main Street and Wh Place in Edmonds, Washington. The property is approximately 3 acres in size
and is owned by the City of Edmonds.
The purpose of the investigation was to determine the approximate location and geographic extent
of suspect wetland areas and determine the classification and buffer requirements for these areas in
accordance with the Critical Areas Ordinance of the Edmonds Development Code Municipal Code
(EDCMC 20.15). The results of the reconnaissance including identification of wetland locations
and boundaries and a description of the characteristics of suspect wetland areas and adjacent
uplands follows.
Reconnaissance Summary
Wetland Areas
The northern half of the property includes a hill constructed of fill material sloping gently to the
north and dropping off steeply to the south. The highest elevation of the property is near the south
edge of the hill, which is approximately 15 to 25 feet above street elevation. South of the hill, a
small ravine with relatively flat terrain is situated in the middle of the opposing ravine slopes. The
flat terrain is approximately 20 feet below the top of the hill and includes a small wetland area
(Figure 1). This is the only area on the property identified by URS as a wetland.
URS evaluated the wetland using guidance provided by the 1987 U.S. Army Corps of Engineers
Wetlands Delineation Manual and the 1997 Washington State Wetland Identification and
Delineation Manual. This area was classified according to the Classification of Wetlands and
Deepwater Habitats of the United States (Cowardin et al., 1979) and rated according to the rating
system described by the EDCMC 20.1513 Critical Areas. Under the Cowardin classification
scheme, wetlands and deepwater habitats are grouped into systems based on shared hydrologic
factors. These systems are further divided by the structure of dominant vegetation. EDCMC
distinguishes wetland classes based on specific criteria regarding wetland size, wetland (Cowardin)
classification, and presence of rare plant communities. EDCMC also establishes wetland buffer
requirements, development standards, permitted alterations, and mitigation requirements.
vRSWetlands Reconnaissance 86 Place and Main, Edmonds, Washington Page 2
The area identified as a wetland appears to meet the criteria for hydrophytic vegetation, hydric
soils, and wetland hydrology. The wetland is oblong -shaped and is approximately 6,200 ft2 in size.
A portion of the wetland appears to extend beyond the eastern property boundary.
Five small plant communities were identified within the wetland. All communities except one
appeared to be dominated by hydrophytic vegetation. However, as with the other communities,
cover from herbaceous species here may be greater during the growing season. Additionally, there
may be plant species present that could not be detected given the time of year this survey was
conducted.
The first community is contained within a semi -permanent, shallow pond located in the middle of
the wetland. This area is approximately 1,100 ft2 in size. Typical depth of the pond is 2-3 inches,
but maximum depth may be as much as 12 inches. This community is dominated by aquatic
vegetation, namely diverse -leaved water starwort (Callitriche heterophylla) and duckweed (Lemna
minor).
A low, rounded ridge rising 1-2.5 feet above the pond is situated immediately east of the aquatic
community. This area is approximately 1,500 ft2 in size. The plant community atop this ridge is
dominated by red alder (Alnus rubra) saplings and western red cedar (Thuja plicata) seedlings. The
alder saplings are approximately 25 feet tall and have 2-4 inch diameter at breast height (dbh). The
cedar seedlings range from 5 to 8 feet in height. This community is fairly diverse for its size
containing other species such as salmonberry (Rubus spectabilis), sword fern (Polystichum
munitum), Himalayan blackberry (Rubus discolor), cherry laurel, and Dewey's sedge (Carex
deweyana).
The area immediately west of the pond gently slopes to the east and appears only intermittently
flooded. This community is dominated by creeping buttercup (Ranunculus repens), but has a small
patch dominated by grass including reed canarygrass (Phalaris arundinacea) and creeping
bentgrass (Agrostis stolonifera). This community appears to be 1,000 ft2 in size. A walkibike path
that traverses the wetland is mainly contained within this community. The path is 3-4 feet wide and
is constructed of compacted gravel and soil. Very little vegetation is found within the path.
West of the creeping buttercup community is a small patch of shrubby vegetation that lies on the
east slope of a gentle rise. The rise is near the base of the east -facing ravine slope. This community
is approximately 700 ft2 in size. Red alder saplings and creeping buttercup dominate this
community. Other vegetation growing here includes salmonberry and Himalayan blackberry.
North and northeast of these four communities is the fifth community, which is approximately
1,900 ft2 in size. This community is nestled within a low spot just west of the base of the west-
URWetlands Reconnaissance 86 Place and Main, Edinonds, Washington Page 3
facing ravine slope. Himalayan blackberry vegetation is dominant in this community. Thus, the
vegetation here did not appear to be hydrophytic. However, other plant species found here include
creeping buttercup and reed canarygrass. Cover from these two herbaceous species may be much
greater during the growing season.
The wetland area is classified as a palustrine scrub -shrub wetland dominated by broad-leaved
deciduous plants (PSS 1). The palustrine system includes all nontidal wetlands dominated by trees,
shrubs, emergent herbaceous plants, mosses, and/or lichens. A soil pit (indicated as SP-2) was dug
within the alder/cedar community of since this community appeared to have the least soil moisture.
The matrix soil here was found to be a sandy loam with very dark grayish brown (2.5Y 3/2)
coloration. A few, moderate -sized mottles with IOYR 6/8 (brownish yellow) coloration were found
here as well. The presence of low chroma in the matrix soil and mottles indicates that the soil is
hydric. Soil here was saturated to the surface at the time of the survey. Standing water was found
18 inches below the soil surface.
Soil in the creeping buttercup and Himalayan blackberry community was saturated to the surface.
Soil in the aquatic community, as indicated previously, appears semi -permanently flooded. Soil
and soil saturation in the alder/buttercup community are likely similar to those within the
alder/cedar community.
The hydrologic source for this wetland appears to be subsurface drainage from the ravine slopes
and the gently sloped terrain that extends south within the ravine. Water levels do not appear to
fluctuate in the wetland area. In addition, drainage from the wetland appears impeded by filled
areas to the north.
Upland Areas
Upland areas that do not appear to meet the criteria for hydrophytic vegetation, hydric soils, and
wetland hydrology comprise the majority of the property. Three plant communities were found
within the uplands. The area located on top of the hill in the northern portion of the site is
regularly mowed and is dominated by nonnative lawn grasses. Dominant species include tall
fescue (Festuca arundinacea) and colonial bentgrass (Agrostis capillaris). Some clover (Trifolium
sp.) is also present in this area. The east and south slopes of the hill near its southeastern corner of
the hill is fairly steep and is vegetated by nonnative, invasive plants. Japanese knotweed
(Polygonum cuspidatum) and Himalayan blackberry dominate this are although reed canarygrass
was also observed in the steeply sloping areas.
Vegetation across the east -facing ravine slope and across a low, but dry swale between the ravine
slope and the south slope of the hill is forested and the canopy is dominated by mature red alder
and Douglas fir (Pseudotsuga menziesii). The understory is dominated by sword fern. The mature
URSWetlands Reconnaissance 86 Place and Main, Edmonds, Washington Page 4
alders have the highest cover here. These trees range from 60 to 80 feet in height and 1 to 2 feet
dbh. Other tree and shrub species found here include western red cedar, cherry laurel, English holly
(Ilex aquifolium), Oregon boxwood (Pachistima myrsinites), dull Oregon grape (Berberis nervosa),
and Himalayan blackberry.
A soil pit (indicated as SP-1 on Figure 1) was dug to sample upland soil. The soil here is a very
dark brown (10YR 2/2) gravelly sandy loam that extends to at least 18 inches in depth. No mottles
are present. Soil was not moist, and no indications of saturation or inundation were observed.
Conclusion
A suspect wetland area approximately 6,200ft2 was identified in eastern portion of the property.
The boundaries of this area were flagged with flagging tape for future identification, evaluation,
and surveying. This wetland area is classified as a palustrine scrub -shrub wetland dominated by
broad-leaved deciduous plants (PSS1). The palustrine system includes all nontidal wetlands
dominated by trees, shrubs, emergent herbaceous plants, mosses, and/or lichens.
The wetland area meets the criteria for a Category 3 wetland according to EDCMC 20.15.B.130 as
its size is less than 1 acre, but greater than 2,500 ft2. Buffer requirements for a Category 3 wetland
restrict development within a 25-foot wide buffer surrounding the wetland (EDCMC 20.15.B.130)
Disclaimer
URS was requested to and completed a reconnaissance level survey. As such, the wetland
boundaries as marked in the field and identified in this report are subject to change upon detailed
delineation and subsequent scrutiny by local and state agencies. Future development activities on
the property may require completion of a wetland delineation, including a boundary survey
performed by a licensed surveyor.
References
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and
deepwater habitats of the United States. US Fish and Wildlife Service, Office of Biological
Services, Publication FWS/OBS-79/31, Washington, DC.
Ecology (Washington State Department of Ecology). 1997. Washington State wetlands
identification and delineation manual. Ecology, Publication No. 96-94, Olympia.
US Army Corps of Engineers (COE), Environmental Laboratory. 1987. Corps of Engineers
wetlands delineation manual. US Army Corps of Engineers, Technical Report Y-87-1,
Waterways Experiment Station, Vicksburg, Mississippi.
MAIN ST
Job No. 53-010004606.01
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Figure 1
Approximate Wetland Location
City -Owned Parcel 86th Place and Main Street
UMCity of Edmonds, Washington
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January 3, 2002
Mr. Robert Chave
City of Edmonds
Community Services Department, Planning Division
121 50'Avenue North
Edmonds, WA 98020
RE: Wetlands Assessment 86"' Place and Main Street
Dear M. Chave:
Gp, U"t .14"5
I have enclosed a summary report for the wetlands reconnaissance completed by URS Corporation (URS)
on December 26, 2001 on the city -owned parcel located at 86t' Place and Main Street. The purpose of the
reconnaissance was to provide a qualitative assessment of the extent of the parcel that in our professional
judgement, is likely to be considered jurisdictional wetlands under Section 404 of the Clean Water Act
(33USC§1344; 33CFR§323) and therefore subject to the conditions of the Edmonds Critical Areas
Ordinance (Edmonds Development Code Municipal Code regulations EDCMC 20.15B Critical Areas).
URS completed the reconnaissance -level assessment using guidance provided by the 1987 U.S. Army Corps
of Engineers Wetlands Delineation Manual and the 1997 Washington State Wetland Identification and
Delineation Manual. A suspect wetland area approximately 6,200ft2 in size was identified in eastern portion
of the property. The boundaries of this area were flagged with flagging tape for future identification,
evaluation, and surveying. This wetland area is classified as a palustrine scrub -shrub wetland dominated by
broad-leaved deciduous plants (PSS1). The palustrine system includes all nontidal wetlands dominated by
trees, shrubs, emergent herbaceous plants, mosses, and/or lichens.
The wetland area meets the criteria for a Category 3 wetland according to EDCMC 20.15.B.130 as its size is
less than 1 acre, but greater than 2,500 ftZ. Buffer requirements for a Category 3 wetland restrict
development within a 25-foot wide buffer surrounding the wetland (EDCMC 20.15.B.130).
Mr. Chave, URS appreciates the opportunity to work with you on this project. Should you have any
questions or wish to discuss this project in greater detail, please feel free to call me at 206/438-2084.
Very truly yours,
��,.>!
&rry DeMuro
Sr. Project Manager
Cc: D. Every'
G. Mazer
URS Corporation
Century Square
1501 4th Avenue, Suite 1400
Seattle, WA 98101-1616
Tel: 206.438.2700
Fax: 206.438.2699
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0.
WETLANDS RECONNAISSANCE
86TH PLACE AND MAIN STREET
EDMONDS, WASHINGTON
Introduction
URS Corporation, (URS) conducted a reconnaissance -level assessment to determine the presence,
extent, and character of wetlands on a property located immediately south of the junction between
Main Street and 86th Place in Edmonds, Washington. The property is approximately 3 acres in size
and is owned by the City of Edmonds.
The purpose of the investigation was to determine the approximate location and geographic extent
of suspect wetland areas and determine the classification and buffer requirements for these areas in
accordance with the Critical Areas Ordinance of the Edmonds Development Code Municipal Code
(EDCMC 20.15). The results of the reconnaissance including identification of wetland locations
and boundaries and a description of the characteristics of suspect wetland areas and adjacent
uplands follows.
Reconnaissance Summary
Wetland Areas
The northern half of the property includes a hill constructed of fill material sloping gently to the
north and dropping off steeply to the south. The highest elevation of the property is near the south
edge of the hill, which is approximately 15 to 25 feet above street elevation. South of the hill, a
small ravine with relatively flat terrain is situated in the middle of the opposing ravine slopes. The
flat terrain is approximately 20 feet below the top of the hill and includes a small wetland area
(Figure 1). This is the only area on the property identified by URS as a wetland.
URS evaluated the wetland using guidance provided by the 1987 U.S. Army Corps of Engineers
Wetlands Delineation Manual and the 1997 Washington State Wetland Identification and
Delineation Manual. This area was classified according to the Classification of Wetlands and
Deepwater Habitats of the United States (Cowardin et al., 1979) and rated according to the rating
system described by the EDCMC 20.15B Critical Areas. Under the Cowardin classification
scheme, wetlands and deepwater habitats are grouped into systems based on shared hydrologic
factors. These systems are further divided by the structure of dominant vegetation. EDCMC
distinguishes wetland classes based on specific criteria regarding wetland size, wetland (Cowardin)
classification, and presence of rare plant communities. EDCMC also establishes wetland buffer
requirements, development standards, permitted alterations, and mitigation requirements.
URSWetlands Reconnaissance 86 Place and Main, Edmonds, Washington Page 2
The area identified as a wetland appears to meet the criteria for hydrophytic vegetation, hydric
soils, and wetland hydrology. The wetland is oblong -shaped and is approximately 6,200 ft2 in size.
A portion of the wetland appears to extend beyond the eastern property boundary.
Five small plant communities were identified within the wetland. All communities except one
appeared to be dominated by hydrophytic vegetation. However, as with the other communities,
cover from herbaceous species here may be greater during the growing season. Additionally, there
may be plant species present that could not be detected given the time of year this survey was
conducted.
The first community is contained within a semi -permanent, shallow pond located in the middle of
the wetland. This area is approximately 1,100 ft2 in size. Typical depth of the pond is 2-3 inches,
but maximum depth may be as much as 12 inches. This community is dominated by aquatic
vegetation, namely diverse -leaved water starwort (Callitriche heterophylla) and duckweed (Lemna
minor).
A low, rounded ridge rising 1-2.5 feet above the pond is situated immediately east of the aquatic
community. This area is approximately 1,500 ft2 in size. The plant community atop this ridge is
dominated by red alder (Alnus rubra) saplings and western red cedar (Thuja plicata) seedlings. The
alder saplings are approximately 25 feet tall and have 2-4 inch diameter at breast height (dbh). The
--cedar seedlings -range from 5 to 8 feet in height. This community is fairly diverse for its size
containing other species such as salmonberry (Rubus spectabilis), sword fern (Polystichum
munitum), Himalayan blackberry (Rubus discolor), cherry laurel, and Dewey's sedge (Carex
deweyana).
The area immediately west of the pond gently slopes to the east and appears only intermittently
flooded. This community is dominated by creeping buttercup (Ranunculus repens), but has a small
patch dominated by grass including reed canarygrass (Phalaris arundinacea) and creeping
bentgrass (Agrostis stolonifera). This community appears to be 1,000 ft2 in size. A walk/bike path
that traverses the wetland is mainly contained within this community. The path is 3-4 feet wide and
is constructed of compacted gravel and soil. Very little vegetation is found within the path.
West of the creeping buttercup community is a small patch of shrubby vegetation that lies on the
east slope of a gentle rise. The rise is near the base of the east -facing ravine slope. This community
is approximately 700 ft2 in size. Red alder saplings and creeping buttercup dominate this
community. Other vegetation growing here includes salmonberry and Himalayan blackberry.
North and northeast of these four communities is the fifth community, which is approximately
1,900 ft2 in size. This community is nestled within a low spot just west of the base of the west-
Wetlands Reconnaissance 86 Place and Main, Edmonds, Washington Page 3
facing ravine slope. Himalayan blackberry vegetation is dominant in this community. Thus, the
vegetation here did not appear to be hydrophytic. However, other plant species found here include
creeping buttercup and reed canarygrass. Cover from these two herbaceous species may be much
greater during the growing season.
The wetland area is classified as a palustrine scrub -shrub wetland dominated by broad-leaved
deciduous plants (PSS1). The palustrine system includes all nontidal wetlands dominated by trees,
shrubs, emergent herbaceous plants, mosses, and/or lichens. A soil pit (indicated as SP-2) was dug
within the alder/cedar community of since this community appeared to have the least soil moisture.
The matrix soil here was found to be a sandy loam with very dark grayish brown (2.5Y 3/2)
coloration. A few, moderate -sized mottles with IOYR 6/8 (brownish yellow) coloration were found
here as well. The presence of low chroma in the matrix soil'and mottles indicates that the soil is
hydric. Soil here was saturated to the surface at the time of the survey. Standing water was found
18 inches below the soil surface.
Soil in the creeping buttercup and Himalayan blackberry community was saturated to the surface.
Soil in the aquatic community, as indicated previously, appears semi -permanently flooded. Soil
and soil saturation in the alder/buttercup community are likely similar to those within the
alder/cedar community.
The hydrologic source for this wetland appears to be subsurface drainage from the ravine slopes
and the gently sloped terrain that extends south within the ravine. Water levels do not appear to
fluctuate in the wetland area. In addition, drainage from the wetland appears impeded by filled
areas to the north.
Upland Areas
Upland areas that do not appear to meet the criteria for hydrophytic vegetation, hydric soils, and
wetland hydrology comprise the majority of the property. Three plant communities were found
within the uplands. The area located on top of the hill in the northern portion of the site is
regularly mowed and is dominated by nonnative lawn grasses. Dominant species include tall
fescue (Festuca arundinacea) and colonial bentgrass (Agrostis capillaris). Some clover (Trifolium
sp.) is also present in this area. The east and south slopes of the hill near its southeastern corner of
the hill is fairly steep and is vegetated by nonnative, invasive plants. Japanese knotweed
(Polygonum cuspidatum) and Himalayan blackberry dominate this are although reed canarygrass
was also observed in the steeply sloping areas.
Vegetation across the east -facing ravine slope and across a low, but dry swale between the ravine
slope and the south slope of the hill is forested and the canopy is dominated by mature red alder
and Douglas fir (Pseudotsuga menziesii). The understory is dominated by sword fern. The mature
Wetlands Reconnaissance 86 Place and Main, Edmonds, Washington Page 4
URS
alders have the highest cover here. These trees range from 60 to 80 feet in height and 1 to 2 feet
dbh. Other tree and shrub species found here include western red cedar, cherry laurel, English holly
(Ilex aquifolium), Oregon boxwood (Pachistima myrsinites), dull Oregon grape (Berberis nervosa),
and Himalayan blackberry.
A soil pit (indicated as SP-1 on Figure 1) was dug to sample upland soil. The soil here is a very
dark brown (10YR 2/2) gravelly sandy loam that extends to at least 18 inches in depth. No mottles
are present. Soil was not moist, and no indications of saturation or inundation were observed.
Conclusion
A suspect wetland area approximately 6,200ft2 was identified in eastern portion of the property.
The boundaries of this area were flagged with flagging tape for future identification, evaluation,.
and surveying. This wetland area is classified as a palustrine scrub -shrub wetland dominated by
broad-leaved deciduous plants (PSS1). The palustrine system includes all nontidal wetlands
dominated by trees, shrubs, emergent herbaceous plants, mosses, and/or lichens.
The wetland area meets the criteria for a Category 3 wetland according to EDCMC 20.15.B.130 as
its size is less than 1 acre, but greater than 2,500 ft2. Buffer requirements for a Category 3 wetland
restrict development within a 25-foot wide buffer surrounding the wetland (EDCMC 20.15.B.130)
Disclaimer
URS was requested to and completed a reconnaissance level survey. As such, the wetland
boundaries as marked in the field and identified in this report are subject to change upon detailed
delineation and subsequent scrutiny by local and state agencies. Future development activities on
the property may require completion of a wetland delineation, including a boundary survey
performed by a licensed surveyor.
References
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and
deepwater habitats of the United States. US Fish and Wildlife Service, Office of Biological
Services, Publication FWS/OBS-79/31, Washington, DC.
Ecology (Washington State Department of Ecology). 1997. Washington State wetlands
identification and delineation manual. Ecology, Publication No. 96-94, Olympia.
US Army Corps of Engineers (COE), Environmental Laboratory. 1987. Corps of Engineers
wetlands delineation manual. US Army Corps of Engineers, Technical Report Y-87-1,
Waterways Experiment Station, Vicksburg, Mississippi.
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Wetland Area \
LEGEND \ \
1 SP-1 • SP-1 Soil Test Pit \ �\
`� _. tom- • Wetland Boundary (approximate)
0 20 40 80
Scale in Feet
I
I Figure 1
Approximate Wetland Location
City -Owned Parcel 86th Place and Main Street
City of Edmonds, Washington