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4.1C CUP - Storm Water Management Report
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01-21-2021 Planning & Zoning Commission Meeting
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4.1C CUP - Storm Water Management Report
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1/15/2021 12:13:41 PM
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0591335 Xcel Brainerd Facility MSE 24hr 3 10-Year Rainfall=3.86" <br /> Prepared by Rehder&Associates, Inc. Printed 12/21/2020 <br /> �droCAD�10.00-21 s/n 02629 O 2018 HvdroCAD Software Solutions LLC pa9e g <br /> Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points <br /> Runoff by SCS TR-20 method, UH=SCS,Weighted-CN <br /> Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method <br /> Subcatchment1S: EXISTING RUNOFF Runoff Area=5.390 ac 0.00% Impervious Runoff Depth=1.78" <br /> Tc=20.0 min CN=78 Runoff=10.63 cfs 0.798 af <br /> Subcatchment2S: PROPOSEDTO BASIN 1 RunoffArea=2.120 ac 69.81% Impervious Runoff Depth=2.51" <br /> Tc=10.0 min CN=87 RunofF7.97 cfs 0.443 af <br /> Subcatchment3S: PROPOSED TO BASIN 2 Runoff Area=0.810 ac 64.20%Impervious Runoff Depth=2.33" <br /> Tc=7.0 min CN=85 Runoff=3.25 cfs 0.157 af <br /> Subcatchment4S: PROPOSEDTO BASIN 3 RunoffArea=2.190 ac 62.56% Impenrious Runoff Depth=2.25° <br /> Tc=10.0 min CN=84 Runoff=7.44 cfs 0.410 af <br /> Pond 5P: In�ltration Basin 1 Peak EIev=1,271.10' Storage=11,166 cf Inflow=7.97 cfs 0.477 af <br /> Discarded=0.09 cfs 0.250 af Primary=1.36 cfs 0.143 af Outflow=1.45 cfs 0.393 af <br /> Pond 6P: Infiltration Basin 2 Peak Elev=1,271.26' Storage=10,778 cf Inflow=3.25 cfs 0.335 af <br /> Discarded=0.09 cfs 0.229 af Primary=0.13 cfs 0.034 af Outflow=0.22 cfs 0.263 af <br /> Pond 7P: Inffltration Basin 3 Peak EIev=1,272.10' Storage=9,359 cf Inflow=7.44 cfs 0.410 af <br /> Discarded=0.12 cfs 0.203 af Primary=1.41 cfs 0.178 af Outflow=1.52 cfs 0.381 af <br /> Reach 8R: PROPOSED RUNOFF Inflow=1.42 cfs 0.164 af <br /> Outflow=1.42 cfs 0.164 af <br /> Subcatchment9S: PROPOSED BYPASS Runoff Area=0.280 ac 7.14% Impervious Runoff Depth=0.89" <br /> Tc=5.0 min CN=64 RunofF0.43 cfs 0.021 af <br />
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