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Western 0 <br />Engineers <br />i& Inc. <br />SURVEYORS • PLANNERS • ENGINEERS <br />9740 Evergreen Way <br />(425) 356-2700 <br />Everett, Washington 98204 <br />FAX (425) 356-2708 <br />f. The top of the sand filter baffle has been moved below the outlet <br />elevation of the detention system. In this configuration, flow <br />passing through the sand filter should not back up into the <br />detention system. <br />g. Removable open -grate type lid specified on detail. <br />4. <br />Acknowledged. Berm callout added. <br />x. MR47 <br />1. <br />The drainage plan has been redesigned to reduce the amount of runoff <br />bypassing the system. Detention calculations now show the system meeting <br />the performance standard. <br />2. <br />Acknowledged. <br />xi. MR#9 <br />1. <br />O&M Manual. <br />a. Acknowledged. Correct procedures added. <br />b. Acknowledged. Added basic sand filter and enclosed/underground <br />sand filter maintenance criteria from SWMMWW. <br />c. Maintenance criteria now up to date. <br />b. Design Plans: <br />i. Sheet 5 <br />1. <br />Acknowledged. General drainage notes added to plan. <br />2. <br />Acknowledged. Linear Sand Filter BMP T8.30 added to Sheet 6. <br />3. <br />Minimum setback and designed setback from drainage system to property <br />line already shown on plan view. <br />4. <br />Added note specifying to continue detention pipe CSBC compaction <br />between the detention pipe and sand filter. <br />5. <br />Acknowledged. <br />6. <br />Acknowledged. New detail added and tank design updated. <br />ii. Sheet 6 <br />1. <br />Added BMP T8.30 detail to sheet. <br />2. <br />Acknowledged. Corrected spelling. <br />Please let me know if you have any questions regarding this comment response letter or the revised <br />report and civil plans. <br />Sincerely, <br />Jesse Jarrell, P.E. <br />Project Manager <br />LAND USE CONSULTANTS * CIVIL ENGINEERS * LAND SURVEYORS * ENGINEERING CORPORATION <br />3/. <br />RAIDSERVER\2015\15-1415-A SILVER PLAZA\ENGINEERING\PUBLIC WORKS REVIEW RESPONSE LETTER <br />