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2748_001.pdfB BEYLER CONSULTING October 23, 2019 Zack Richardson, Stormwater Engineer City of Edmonds 121 5th Ave N, Edmonds, WA 98020 Phone: 425-771-0220 E. CHUNG LOT 1 BLD20181098 721 EDMONDS WAY Dear Zack, REsua OCT Z S 2019 "'L� *ING DEPARTMENT OF EDMONDS Please find attached revised site plans, which reflect the changes as requested in the plan review dated August 20, 2019. Our response to each comment is shown below in bold. General: 1. The architectural site plan refers to civil drawings for grading and drainage but no civil drawings were submitted. A site -specific site plan showing grading and drainage along with the improvements proposed under this permit, is required. Update: Civil plans submitted, but drainage memo or report specific to the building permit has not been submitted and the no summary of the proposed impervious surfaces or sizing of the BMPs is provided. Show on the civil plans, or submit a permit specific drainage memo that references the plat documents but which provides, the actual proposed square footages and BMP sizing calculations based on this permit submittal. Additional comments regarding necessary revisions to the civil plans are below. Site specific drainage memo was submitted with the last submittal. It is resubmitted with this submittal. 2. It appears that the proposed impervious exceeds the plat allotted impervious surfaces (by —5 SF); revise plan as needed to comply with plat impervious restrictions. Update: Impervious surfaces proposed under this permit do not appear to be listed on the civil plans; update civil cover sheet to include a table which quantifies the total proposed roof area, hard surfaces, and pervious areas separately and list the BMP for mitigating each of those surfaces. It has been updated. 3. Include an erosion and sediment control plan and ensure it protects the infiltration facility areas from construction traffic. Update: It appears the construction entrance is proposed over the planned pervious LAKEWOOD OFFICE 5920 1001h St SW' Ste #25 Lakewood, WA 98499 phone: 253-301-4157 fax: 253-336-3950 Plan. Design. Manage CIVIL & S1 RUC-1 URAL ENGINEERING I I -AND SURVEYING I PLANNING PRO)ECTMANAGEMENT I FEASIBILITY I PERMIT EXPEDITING driveway; relocate construction entrance and protect infiltration surfaces with construction fencing or provide notes as needed stating that over excavation and geotechnical approval of the subgrade is required prior to placing the ballast rock (or any material) for the pervious pavement section. The construction entrance has been revised and a note added for the protection and inspection of the subgrade. Thank you for your time and assistance in the review of this project. Should you need any additional information, please do not hesitate to contact me at 253-984-2900 or via email at mkeller@beylerconsulting.com. Sincerely, Mark Keller, P.E. 13NO BW Page 2 of 2 BEYLER OONSULTiNG