REVIEWED BLD2022-1465 Wet Season Grading Request_20230927-Aspect
4 A Geosyntec Company
September 27, 2023
Steve Pacquer
18306 Olympic View Drive
Edmonds, WA 98020
Re: Wet Season Grading Request
City of Edmonds Permit No. BLD2022-1465
18306 Olympic View Drive
Edmonds, Washington
Aspect Project No. 190276
Dear Steve:
RESUB
9/27/2023
CITY OF EDMONDS
DEVELOPMENT
SERVICES DEPARTMENT
REVIEWED
BY
CITY OF EDMONDS
Aspect Consulting, LLC (Aspect) has prepared this letter to support your request to perform
earthwork and grading activities between October 1 and April 30 (wet season) for the planned single-
family residence addition (Project) at 18306 Olympic View Drive in Edmonds, Washington (Site).
Project Understanding
The Project consists of construction of a new two -level addition to the west side of the existing
residence, which sits near the top of a steep, northwest -facing slope above Puget Sound. The slope
is mapped as a Steep Slope and Landslide Hazard Critical Area by the City of Edmonds. The
addition includes new interior living space (a fitness area, family room, and bedroom on the lower
level, and a living room on the main level) and a lower level exterior deck on the southwest corner
of the residence.
Earthwork and grading activities for the Project are expected to be relatively minor and limited to
excavations for new footings and potentially placement of backfill around the new footings. Based
on the recommendations provided in our geotechnical engineering report' for the Project and our
review of the Project plans, new footings will be at least 25 feet away from the top of the steep
slope. Based on our review of the Site Plant, temporary erosion and sedimentation control (TESC)
best management practices (BMPs) will include a perimeter silt fence. The Site Plan also specifies
that all disturbed ground will be amended with compost for permanent site stabilization.
Statement from Geotechnical Engineer
Based on our understanding of the Project and extent of planned earthwork and grading activities
and our review of the Site Plan, and with (1) proper implementation and maintenance of TESC
BMPs by the Contractor, and (2) proper site stabilization, it is our opinion that the risk of erosion or
adverse impact to the adjacent steep slope and environmentally critical area from the Project
construction during the wet season is low.
1 Aspect Consulting, 2023, Geotechnical Engineering Evaluation, Pacquer Residence Addition, 18306 Olympic
View Dr., Edmonds, Washington, revised June 15, 2023
z Strobl Design, 2023, Sheet A2, Pacquer Residence, 18306 Olympic View Dr, Edmonds, WA 98020, dated
6/7/2023
Steve Pacquer
September 27, 2023
Project No. 190276
In accordance with the Edmonds Community Development Code (ECDC) 19.10, Aspect will
inspect and evaluate the effectiveness of the Contractor's TESC BMPs during site visits for
geotechnical special inspections and after "storm events" as defined in ECDC 19.10.020(Q) until
the Site is permanently stabilized.
Limitations
Work for this project was performed for Steve Pacquer (Client), and this letter was prepared in
accordance with generally accepted professional practices for the nature and conditions of work
completed in the same or similar localities, at the time the work was performed. This letter does not
represent a legal opinion. No other warranty, expressed or implied, is made.
All reports prepared by Aspect Consulting for the Client apply only to the services described in the
Agreement(s) with the Client. Any use or reuse by any party other than the Client is at the sole risk of
that party, and without liability to Aspect Consulting. Aspect Consulting's original files/reports shall
govern in the event of any dispute regarding the content of electronic documents furnished to others.
We appreciate the opportunity to perform these services. If you have any questions please call
Eric Schellenger, Senior Geotechnical Engineer, at (714) 423-4261.
Page 2
Steve Pacquer
September 27, 2023
Sincerely,
Aspect consulting, LLC
Z
k
c1S�ONAL ti�G 9/27/2023
Eric Schellenger, PE
Senior Geotechnical Engineer
eschellenger@aspectconsulting.com
Project No. 190276
Andrew Holmson, PE
Senior Associate Geotechnical Engineer
aholmson@aspectconsulting.com
VA190276 Pacquer Residence Add ition\Del iverables\Pacquer Wet Season Grading Request_20230927.docx
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