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I <br /> Intermec/Kenilworth Hills Stormwater Analysis Everett, WA <br /> IDetailed Calculations <br /> 1 Step 1: Route the 25-year, 1-hour storm through the Intermec Lot 2 pond. <br /> I *Calculated using the Intermec Lot 2 Storm Drainage Model. <br /> Start of live storage: 100.0000 ft <br /> IEvent Match Q (cfs) Peak Q (cfs) Peak Stg (ft) Vol (cf) Vol (acft) Time to Empty <br /> 25 year N/A 0.3646 103.5516 54559.35 1 .2525 116.50 <br /> I -' 25 year Hydiograph Plot <br /> v al 25 vear out <br /> a <br /> 5 <br /> 11 <br /> 4 N- C') O h- CO C t- Cr) C N- M O N- c') C h- CO O N- CO C N- S`? O Fti CO O N- CO <br /> c'') 47 cL CC O co. u7 co co. o co. u; ca Co o co. Cr, co. Ca D. c7 Ln CD o0 <br /> C O o C' O N N N N N N C') C+) Cr) Cr) c'-i co •7 b' 't et et Sh <br /> Time in Hours <br /> Summary Report of all Detention Pond Data <br /> IEvent Precip (in) <br /> 25 yr 0.9000 <br /> I <br /> Peak Q Peak T Peak Vol (ac- Area <br /> BasinID Event (cfs) (hrs) cf) (ac) Method/Loss Raintype <br /> I25 <br /> POST year 19.6407 0.67 1 .3055 37.50 SBUH/SCS lhr <br /> IPOST 25 19.6407 0.67 1 .3055 37.50 SBUH/SCS lhr <br /> year <br /> I <br /> I <br /> I <br /> I <br /> IPACLAN D Job# 50175001 Page 10 <br />