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SW_Review_Comments_2.pdf City of Edmonds TH 121 5 AVENUE NORTH EDMONDS, WA 98020 (425) 771-0220 FAX(425) 771-0221 Website: www.ci.edmonds.wa.us DEVELOPMENT SERVICES DEPARTMENT Planning • Building • Engineering Stormwater Review Comments Permit : Date: # BLD20070640, 641, 642, 643, 644, and 645. 10/24/2007 nd Project Name/Address: 232 Mixed-Use & Town Homes – 23004 Edmonds Way Contact Person/Address/Fax: __ Tony Shapiro/624 Edmonds Way, Edmonds, 98020 Reviewer: Division: Blaine Chesterfield Engineering During review of the subject submittal it was found that the following information, corrections, or clarifications will need to be addressed: 1.Infiltration testing needs to be done in the field, at the 8/16/2007 Comment - appropriate depth and the location of the rain garden and infiltration facility, before the civil plans will be approved. The infiltration testing should be done by a qualified Geotechnical Engineer or PE. An infiltration test report should be completed with the appropriate information to include; the location of any tests, testing procedures used, and infiltration rates. The infiltration site for this development would likely require multiple test locations. I have attached a handout of one acceptable testing and sizing method. We also accept the 1992 DOE Stormwater manual methods as well. 10/24/2007 First comment not addressed –Response Letter States: “The information has been forwarded to the project geotechnical engineer. The geotechnical engineer has contacted me about requirements of the infiltration design. It is my understanding the infiltration testing has been scheduled and will meet the city’s requirements.” Infiltration rates will be needed to complete the hydraulic calculations. Please resubmit three copies of the revised plans/documents to a Development Services Coordinator. You may contact me at 425-771-0220 if you have specific questions regarding these plan corrections.