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Cc: "Kurt Hansen" <KurtH(c�charlescudd.com>, "John Sonnek" ysonnek(a�charlescudd.com> <br /> Subject: FW: Cudd Denovo - 2400 Fox Street <br /> Melanie <br /> Please call me when you get this so I know you have all we need for a co <br /> Thank youjohn 612-282-4893 <br /> From: Dave Nash [mailto:dnash(a�evs-eng.com] <br /> Sent: Wednesday, Apri127, 2011 2:43 PM <br /> To: John Sonnek <br /> Subject: Cudd Denovo - 2400 Fox Street <br /> John: please forward this email to the City of Orono; <br /> City of Orono: please find attached a copy of the Final Grading As-built and HydroCAD report <br /> for the site located at 2400 Fox Street. At the request of Charles Cudd Denova, I have prepared <br /> the HydroCAD report to verify the adequate sizing of the storm sewer constructed for the new <br /> home. The report shows for a back to back 100 year storm event, the 12" storm sewer and catch <br /> basin can handle the runoff from sub catchment area 1 S (3450 SF). The elevation of the window <br /> adjacent to this area is 960.9. Based on these calculations , the maximum elevation the water will <br /> raise during a back to back 100 year storm event is 960.32' (0.58 feet below the window <br /> opening). This does not account for the infiltration that will occur do to the rock placed around <br /> the storm inlet, so this calculation is a conservative analysis. I also based the calculation on a <br /> curve number of 98 —full impervious surface - for a conservative result. <br /> The report indicates the peak flow into the pipe is 0.55 cfs—but the pipe itself can handle up to <br /> 4.51 cfs. <br /> I certify this report was completed by myself and I am a registered engineer in the State of <br /> Minnesota(#21836). <br /> If you have any more questions,please feel free to contact me. <br /> Dave Nash dnash cr,evs-en .� com<mailto:dnash(a�evs-en .g com> <br /> Director of Residential Development, EVS, Inc <br /> 10250 Valley View Road, Suite 123 <br /> Eden Prairie, MN 55344 <br /> Direct: (952)646-0253, Cell (612)242-0530 <br /> Web www.evs-eng.com<http://www.evs-en .� com/> <br /> From: akim(a�evs-en .� com [mailto:akim(a�evs-en .g com] <br /> Sent: Wednesday, Apri127, 2011 2:06 PM <br /> To: Dave Nash <br /> Subject: Message from KMBT_C452 <br /> 3 <br />