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0 <br />PUBLIC WORKS <br />b. Plans: <br />1. Sheet DR 1- Exiting CB's in the to -remain parking lot should be removed or have <br />solid lids as indicated in the attached markups. This area is included in the tributary <br />area to the detention facility. The plan needs to ensure that water is routed to the <br />facility and to avoid future confusion about where the runoff is intended to be routed. <br />2. General Notes on DRl and DR2 reference WSDOT grate standards. Citv standard <br />plans should be referenced instead. <br />3. Sheet DD2 — the pretreatment manhole detail plan view references a frame and grate <br />detail, but none is provided. <br />4. Note that access lids for both the CDS unit and Modular Wetland must comply with <br />DCSS Section 4-4.2(3), including hinged grates for oversize lids. <br />5. The Modular Wetland Tables identifies the 2 year flow as 0.0910. The calcs in the <br />SSP list the 2 year flow as 0.16. Please ensure that these two values are consistent. <br />6. The flow control structure must be designed in accordance with the DCSS and City <br />Standard Plan 415. Some notable discrepancies are: <br />• Do not include a mesh cover over the bottom of the riser. <br />• Orifices must be a minimum of 0.25 inches. Please revise the design of the <br />second orifice. <br />3. The comments below were generated from this project's Planning Reviewer. If you have any <br />questions regarding these comments, please contact Dave Tyler with the City of Everett Planning <br />Department (425-257-7164 or DTylergeverettwa.goy). <br />a. Interior Parking Lot Landscaping (Sheet LS 1) — The plans show a total of 16 trees within <br />the interior of the parking lot. The standard for interior landscaping within the C-2ES <br />zone is one tree per four parking stalls. For the 90 parking stalls, a total of 23 trees is <br />required. <br />b. Please provide a revised layout/landscape plan showing 23 trees within the interior of the <br />parking lot. <br />Page 3 of 3 <br />