2858_001.pdfRAM Engineering
November 7, 2019
City of Edmonds Development Services Department
1215 th Avenue North
Edmonds, WA 98020
RE: Select Lot 8 of Westhaven Plat
Plan Check BLD20191176
1't Engineering Site Plan Review Comment Response
RAM Job No. 17-038
Staff:
This letter outlines the revisions and corrections made per Staff review. Below is a list of the comment
response documents addressing the comments and requests:
Engineering Comments: JoAnne Zulauf letter dated October 10, 2019
GENERAL
1) Please submit a Side Sewer Pennit Application form.
Response: Application Attached
TESC
1) Please add note that plat tesc will be maintained during sfr construction or provide a tesc
plan for the sfr.
Response: Added note to plan.
SEWER
1) Provide invert elevation at the sewer stub.
Response: Added invert to plan.
STORM
1) Show where the retaining wall drainage will discharge to.
Response: Added retaining wall drywell to plan.
2) There is no connection from the perf stub out to the plat drainage stub out.
Response: connection is to storm stub provided as part of plat construction.
if there are any questions regarding the items above, please contact me at your earliest convenience; I
can be reached at (425)678-6960 or RobL@RAMengineeringinc.com.
Thank you,
1�3- RESUB
Rob Long, PE NOV 12 2019
Principal REUILDING DEPARTMEN1
CITYOF EDMONDS
RAM Engineering 16531 13'h Ave W, Suite A108 Lynnwood WA 98037 (425) 678-6960 RAMengineeringinc.com
RAM Engineering
Memorandum
To: City of Edmonds Engineering Division
c/o Zach Richardson, PE Stormwater Engineer
121 5th Avenue North
Edmonds, WA 98020
From: Rob Long, PE
RAM Engineering
16531 13th Ave W, Suite A108
Lynnwood WA 98037
Subject: Select Homes: Westhaven Plat, Plan Check PLN20180034
Project Allowable Lot Impervious Allocation Revision
RAM Job No. 17-038
Date: Novernber-7-, 2019
This letter provides a revision to the allowable lot hard (impervious) surface allocation for the Westhaven plat. The
original plat design included a total new and replaced hard surface of the project at 51,200 sf, of which 42,000 sf of the
area was allocated to impervious on the lots. The applicant would like to revise the hard surface allocation for each
individual lot to support the building permit application for each lot. The following table provides the requested
reallocation and demonstrates that then revised numbers will not exceed the original approved hard surface allocation
of 42,000 sf for the lots. The new revised lot allocation will be 500 sf less than the original 42,000 sf design.
Westhaven Individual Lot Hard Surface Allocation:
Lot
Impervious
Lot
Impervious
1
4,200
6
4,750
2
4,100
7
3,850
3
4,200
8
3,500
4
4,000
9
4,800
5
3,900
10
4,200
Total Lot Impervious Allocation
= 41,500 sf
If you have any questions or need additional information, please contact me at flobL@RAMetigiiieeritiginc.com or call me
at (425) 678-6960.
Thank you.
111-7119
REsus
NOV I Z 2019
BLJ'LD' DEPARTMeW
OfR409F EDMONDP
RAM Engineering 16531 13L' Ave W, Suite A108 Lynnwood WA 98037 (425) 678-6960 RAMengineeringinc,com