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Runoff analysis for the 2, 10, and 100 �ear - 24 hour duralion storms were <br />performed with Waterworks sofiware and ihe results are included in this report. <br />Based on these calculations, a detention wet vault providing 6,875 c.f. of live <br />storage and 6,:s56 c.f. of dead �torage (2,690 c.f. provided) will provide ihe <br />necessary capac,ily to handle up to the 100-year storm and meel waler quality <br />requirements. <br />Please contact me al 360-657-4709 if you have any questions. <br />Sincerely, <br />��'"�/ ,�.• �v`�7l <br />Ernest L. Berg, P.E. <br />Berg Engineering <br />Attachments <br />rEspirea f/27/Y004 <br />C'.A1v fh�cunie:i's`Ihoinage kepu�ts'Jene_Zimmartnan Coluccio_Drainage_Repon_100807.doc <br />