10521 19TH AVE SE 2022-05-23 - Laserfiche WebLink

PUBLIC WORKS associated item in this corrections letter. Likewise, comments below may not have associated redlines. c. Please remove the Approval block from the plans on any sheets where currently shown. This is outdated and the City will add our current stamp once plans are approved. Our policy is that we must approve on our stamp and not on an electronic one. d. See redlines on Sheets 5 and 7 of the plans for water line revisions. Eliminate one of the additional connections to the main by upsizing to an 8" line, then reducing down to a 6" for the continuation for the fire hydrant. e. Show a 15' water easement to the City of Everett around the water lines from the property line to the back side of the meter(s) and around the fire hydrant. The easement shall be 5' on one side and 10' on the other. The portion of the easement around the hydrant shall extend 5' beyond the hydrant. 2. The comments below were generated from this project's Stormwater Reviewer. If you have any questions regarding these comments, please contact Erik Emerson with the City of Everett Surface Water Department (425-257-8995 or EEmersongeverettwa.gov). a. Drainage Report: The project must comply with the most current version of the City of Everett Stormwater Management Manual (SWMM) and the City of Everett Design and Development Standards and Specifications (DCSS). Minimum Requirements 1-9 are applicable to the project. Please revise the drainage report to address how the project complies with each of the minimum requirements, including the following: • MR #1— Stormwater Site Plan 1. Site Analysis —Provide the information required per Section 3.1.1, Vol. I of the SWMM, including but not limited to a soils report in accordance with those requirements. 2. Site Layout - ■ EMC 19.35.095(E) encourages Low Impact Development (LID) stormwater management facilities, such as bioretention be used in conjunction with other landscaping per code requirements. However, LID is not proposed. ■ See related comments for MR #5, which may require bioretention or other LID BMPs based on the List #2 approach. ■ Refer to Chapters 2 and 3 in the LID Technical Guidance Manual for Puget Sound for detailed guidance on LID BMP layout. 3. Permanent Stormwater Control Plan — Provide documentation consistent with Section 3.1.5, Vol. I of the SWMM. 4. Upstream Analysis — Section 2.6.2, Vol. I of the SWMM requires the off -site analysis to extend upstream to a point where any backwater effects created by the project cease. Confirm in the Drainage Report that the project does not create any backwater effects or update the text, as appropriate. 5. Downstream Analysis — Address the existing or potential impacts per Section 2.6.2 Page 2 of 6