20170124135444.pdfPACIFIC ENGINEERINGDESIGN, LLC m:::....:...
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CIVIL ENGINEERING AND PLANNING CONSULTANTS
January 12, 2017
City of Edmonds
Attn: JoAnne Zulauf
121 51h Avenue North
Edmonds, WA 98020
Subject: BLD20160215-3,d Our Proiect Number 16001
Response to November 4, 2016 Plan Review Corrections
JoAnne,
Thank you for your timely review of our Building Permit application. The following response is
made to the comments presented in the November 4 plan review correction letter. The following
outline provides each of your comments in italics exactly as written, along with a narrative
response describing how each comment was addressed:
1. 1114116 Completed but may need revising per other comments. Please complete site plan
(sheet A-1) to include all required information. Remove spot elevations for clarity, the
contours are sufficient. See example.
2. 9112116 Done.
3. 9112116 Done.
4. 1114116 See Plan Markups (attached) for remaining items to correct/revise. 9112116
Incomplete.
1) 1114116 Completed.
2)
1114116 Completed.
3)
1114116 Completed.
4)
1114116 Completed.
5)
1114116 Completed.
6)
1114116 Completed.
7) 1114116 Currently waiting for word back from the Water Division on the
configuration. Please contact Kris Kuhnhausen for more information at
Operations 425-771-0235. Water meter must be installed on the right of 'il)ay side
of the property line.
Response: Done. Called Water Division — No response. We agreed in a
meeting that the exact location of the meter is to be decided in the field by the
contractor and City Water staff.
8) 1114116 Completed.
www.paceng.com
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City of Edmonds Attn: JoAnne Zulauf 2 January 12, 2017
Response to November 4, 2016 Plan Review Corrections PED Project No. 16001
9) 1114116 Completed.
10)1114116 Completed.
5. 1114116 Completed.
6. 1114116 Completed.
7. 9112116 Completed.
8. 9112116 Completed.
9. 9112116 Completed.
10. 1114116 Completed.
11. 1114116 Completed
12. 9112116 Complete.
13. 9112116 Complete.
14. 1114116 Completed
15. 9112116 Complete.
16, 1114116 Completed.
17, 1114116 No longer applicable
18. 1114116 See Stormwater Pump Report Comments below. 9112116 This review ivill be deferred
to the next submittal due to the changes required to the stormwater system. Note, current
stormwater report, page 2, states the force line is to be installed all the way to 94th. Please
provide a stormwater pump report as described in detail in. the City of Edmonds Handout
E62 Regulations for Private Residential Sewage Pumps in Edmonds (Single Family
Residential Only). The handout is for sewage but the requirements for pump submittal is the
same. Please review handout carefully to ensure that all required information is provided in
the resubmittal.
Response: Storm Pump Report Revised.
19. 1114116 Completed.
20. 1114116 Completed
21. 9112116 Completed.
22. 9112116 Completed.
23. 9112116 Completed.
1114116 Stormwater Pump Comments:
Michele (Mike) De Lilla, PE, LEED AP
City of Edmonds Senior Utilities Engineer
mike. delilla@edmondswa.gov
(425) 771-0220
Review of.
w Design Plans Engineer stamped 1013116 and signed by Greg A Diener
• Storm Drainage, Storm Pump Station and Forcemain Report Engineer stamped
912712016 and signed by Jingsong Feng:
Review Comments:
1. Design Sheets (COI, CO2, CO3, & C05)
City of Edmonds Attn: JoAnne Zulauf 3 January 12, 2017
Response to November 4, 2016 Plan Review Corrections PED Project No. 16001
a. Delete flow control structure. The pump needs to act as the flow control structure
and needs to discharge the same as a code compliant gravity detention system.
2. Page 3 of Storm Drainage, Storm Pump Station and Forcemain Report
a. Currentpump is currently designed to discharge at a rate greater than allotived
Please size it per the handouts.
3. Design Sheet (CO4)
a. Need details for pump system and structure in the plan set, including anti flotation
device and associated buoyancy tales.
4. Design Sheets (CO1, CO2, CO3, & C05)
a. The overflow for the detention system as shown on the plans is not acceptable
since it would cause downstream erosion, sedimentation. Downstream building
flooding is also likely. Therefore the overflow will also need to be a pumped
system designed to handle the overflow flow rate and the system will need an
external alarm and backup power to power the overflow pump. Design plans and
report will need to reflect this accordingly.
Please contact Mike De Lilla at the contact information above with any questions concerning the
stormwater pump comments.
In light of the storm pump comments, is it possible to maybe put the pump structure at the back
of the house and then force line to the detention, maybe in the front of the house or wherever it is
possible to gravity to avoid some of the issues above?
Just a thought.
Response: Detention tank has been moved to the access easement under the access
driveway and has a gravity outfall to the drainage ditch that is a part of the Talbot
Park B Creek drainage system. Use the existing dry well as the pump storage tank. Use
a sump pump installed in a Type I CB to pump storm water to the detention tank. The
sump pump is equipped with a battery back-up system and external alarm.
We believe that the above responses, together with the enclosed revised plans address all of your
comments. Please review and approve this project at your earliest convenience. If you have
questions, comments, or need additional information, please contact me at your convenience.
Thank you.
Sincer y,
PAC C "']NEERING DESIGN, LLC
Attachment: *Revised Plans
*Revised 2016-12-20 TIR
Copy: Dale Fonk