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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 2-Year Rainfall=2.64" <br /> Prepared by Rehder�Associates, Inc. Printed 12/21/2020 <br /> HydroCAD�10.00-21 s/n 02629 O 2018 HvdroCAD Software Solutions LLC Paae 2 <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 RunoffArea=5.390 ac 0.00% Impervious Runoif Depth=0.88" <br /> Tc=20.0 min CN=78 Runoff=5.08 cfs 0.395 af <br /> Subcatchment2S: PROPOSEDTO BASIN 1 RunoffArea=2.120 ac 69.81% Impervious Runoff Depth=1.43" <br /> Tc=10.0 min CN=87 Runoff=4.59 cfs 0.252 af <br /> Subcatchment3S: PROPOSEDTO BASIN 2 Runoff Area=0.810 ac 64.20% Impervious Runoff Depth=1.29" <br /> Tc=7.0 min CN=85 RunofF1.82 cfs 0.087 af <br /> Subcatchment4S: PROPOSED TO BASIN 3 Runoff Area=2.190 ac 62.56% Impervious Runoff Depth=1.23° <br /> Tc=10.0 min CN=84 RunofF-4.08 cfs 0.224 af <br /> Pond 5P: Infiltration Basin 1 Peak EIev=1,270.46' Storage=8,141 cf Inflow--4.59 cfs 0.252 af <br /> Discarded=0.08 cfs 0.213 af Primary=0.00 cfs 0.000 af Outflow=0.08 cfs 0.213 af <br /> Pond 6P: Infiltration Basin 2 Peak Elev=1,269.21' Storage=2,869 cf Inflow=1.82 cfs 0.101 af <br /> Discarded=0.05 cfs 0.101 af Primary=0.00 cfs 0.000 af Outflow=0.05 cfs 0.101 af <br /> Pond 7P: Infiltration Basin 3 Peak Elev=1,271.62' Storage=6,731 cf Inflow--4.08 cfs 0.224 af <br /> Discarded=0.09 cfs 0.185 af Primary=0.06 cfs 0.014 af Outflow=0.15 cfs 0.199 af <br /> Reach 8R:PROPOSED RUNOFF Inflowr=0.12 cfs 0.008 af <br /> Outflow=0.12 cfs 0.008 af <br /> Subcatchment9S:PROPOSED BYPASS Runoff Area=0.280 ac 7.14% Impervious Runoff Depth=0.32" <br /> Tc=5.0 min CN=64 Runoff=0.12 cfs 0.008 af <br />
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