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Iligh flows from storm events ���ill be dischargcd to thc existino stomi drainagc outfall system. <br /> 'I'he high [low discharge pipe is sized to pass the 100-year storm event from the site. No <br /> detcntion of stormwater runoff to prevent downstream erosion is required sincc the discharec is <br /> direcdy to the marina. <br /> !�n emergency shut olf vah�c ��ill be providcd in the systcm lo allow for control of accidcntal <br /> spills. PBS has developed a Stormwater Pollution Prevention Plan (SWPPP) as required b}' its <br /> National Pollulant Discharge l�limination Permit. T3est management praciices and other <br /> measures identificd in the SPPI' �vill continuc follo���inc installntion of die new stonn system. <br /> CALCULATIONS <br /> 'l he drainage basins Cor the site are sho�vn in the attached �gurc. The basins consist of the <br /> existing paved arcas, the new paved arcas, and the gravel area to remain. The SBUH model was <br /> utilizcd to determine pcak and total runoff from thc site for the 6 month, 2 year, 10 year, and 100 <br /> ycar storm cvents. <br /> \^_c� ti-hbo2t h}�dre;�.doc�m4: <br /> i <br /> Pish�rmcn's Ltoat S(iop -- June �, 1998 <br /> rlqdiaulic :�eport <br /> - 3 - <br /> - ------� ,a„��o <br />