19-104811 (2)wood.
Wood Environment & Infrastructure Solutions, Inc.
4020 Lake Washington Blvd NE, Suite 200
Kirkland, Washington 98033
USA
T: 425-368-1000
www.woodpic.com
August 21, 2019
Project 591717902.001
Ms. Leila Willoughby -Oakes
Associate Planner
City of Federal Way
Community Development Department
33325 8th Avenue South
Federal Way, Washington 98003
Subject: Geotechnical 3rd Party Review
JLHC Inc. (Youn Residence)
XXXX SW Dash Point Road, Parcel 112103-9106, Federal Way, Washington
Dear Ms. Willoughby -Oakes,
This letter presents the results of our third -party review of the revised geotechnical engineering report for
the above referenced project. Specifically, we reviewed the Revised Geotechnical Engineering Report dated
March 24, 2017 prepared by GeoResources, LLC (GeoResources). As indicated in your email dated August
12, 2019, the building permit for the project has expired, thus the project is subject to current codes. Our
review evaluated GeoResources report for conformance with the current Federal Way Revised Code
(FWRC) adopted June 18, 2019, specifically Article II Geologically Hazardous Areas, Chapter 19.145.
Project History
Wood, (formerly Amec Foster Wheeler, Environment and Infrastructure, Inc.) performed a third -party
geotechnical review of the proposed project in November 2016. We reviewed several documents
including the Geotechnical Engineering Report, dated May 1, 2014 by GeoResources. Our review comments
were documented in our Geotechnical Review of Documents letter dated November 9, 2016. Within our
letter, several comments were made concerning items noted within the GeoResources 2014 report.
Additionally, we reviewed the following documents in November 2016:
• Revised site plans (Sheets C1-C4), revision dated June 23, 2015, prepared by Hagenson Consultants,
LLC; and
• Response letter to City of Federal Way Planning Division dated June 23, 2015 prepared by Hagenson
Consultants, LLC (received by City of Federal Way September 2, 2016).
Our comments concerning these documents were also provided within our November 9, 2016 letter.
Since we submitted our review letter, GeoResources completed revisions to their original report and
submitted a revised report addressing our review comments. This report was provided to us by your email
dated August 12, 2019.
'Wood' is a trading name for John Wood Group PLC and its subsidiaries
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Ms. Leila Willoughby -Oakes
City of Federal Way
August 21, 2019
Page 2 of 2
Review Comments
The report by GeoResources adequately addressed the requirements of Article II of FWRC 19.145 in our
opinion. Our comments presented within our November 9, 2016 letter have been adequately addressed.
We agree with the conclusions of the report; that it appears the proposed project has been designed and
located such that it minimizes impact upon the geologic hazards and associated critical areas and does
not increase risks for adjacent properties.
However, as there are several outstanding comments concerning the project plans and other documents
previously reviewed and documented in our November 9, 2016 letter; we recommend those issues be
clarified and resolved prior to issuing the building permit. This could be documented by requiring
GeoResources to review the final plans and write a letter stating that the plans incorporated their
recommendations correctly and thoroughly.
Closure
We appreciate the opportunity to be of service. It should be noted that our scope of work for this third -
party review was limited to a review of the documents supplied to us. Our scope did not include
subsurface exploration or engineering analyses, nor does our review purport to verify the accuracy of the
geotechnical engineering results presented within the documents.
If you have any questions, please contact us at your convenience.
Sincerely,
Wood Environment & Infrastructure Solutions, Inc.
William J. Lockard, LEG
Senior Geologist
Direct Tel: 425-368-0927
E-mail: bill.lockard@woodplc.com
Todd D. Wentworth, LG, PE
Principal Geotechnical Engineer
Direct Tel: 425-368-0938
E-mail: todd.wentworth@woodplc.com
WJL/TDW:aI
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