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<br /> 3850 Watertown Road
<br /> 3850 Watertown Road Type 1124-hr 90QYR Rainfa11=7.27"
<br /> Prepared by Sunde Engineering, PLLC. Printed 1J6/2015
<br /> HydroCAD�10.00 s/n 02350 8 2013 HvdroCAD Software Solutions LLC p8�e 10
<br /> Volume lnvert Avail.Storaqe Storage Description
<br /> #1 995.80' 739,34fi cf Custom Stage Data{Prismatic�isted below{Recalc)
<br /> Efevatian Surf.Area Inc.Store Cum.Store
<br /> (feet) (sq-ft) (cubic-feet) (cubic�eet)
<br /> 995.84 4,306 0 0
<br /> 996.00 5,125 943 943
<br /> 998.00 32,539 37,664 38,607
<br /> 1,000.00 97,056 129,595 168,202
<br /> 1,002.Q0 136,204 233,260 401,462
<br /> 1,OQ4.00 201,B80 337,884 739,346
<br /> Device Routinc� Invert Outlet Devices
<br /> #1 Primary 1,003.00' 150.0' long x 3.0' breadth EOF - Over Watertawn Road
<br /> Head(feet) 0.20 0.40 0.B0 0.80 1.00 1,20 1.40 1.60 1.80 2.00
<br /> 2.50 3.00 3.50 4.00 4.54
<br /> Coef. (Engiish} 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68
<br /> 2.72 2.81 2.92 2.97 3.07 3.32
<br /> Primary OutFlow Ma�c-0.00 cfs Q 0.00 hrs HW=995.95' (Free Dlscharge)
<br /> t-1aEOF -Over Watertown Road(Controls 0.00 cfs)
<br /> Summary for Pond 2P: Exlsting with Draintile
<br /> Inflow Area = 20.569 ac, 8.4996 impervious, Inflow Depth = 4.06" for 100-YR eveM
<br /> Inflaw = 92.31 cfs @ 12.13 hrs, Volume= 6.959 af
<br /> Outflow = 0.01 cfs Q 24.81 hrs, Volume= 0.069 af, Atten= 100°�, Lag=760.9 min
<br /> Discarded = 0.01 cfs (c� 24.81 hrs, Volume= O.Q69 af
<br /> Prlmary = 0.00 cfs Q 0.00 hrs, Volume= 0.000 af
<br /> Routing by Stor-�nd method,Tlme Span=0.00-72.00 hrs, dr 0.05 hrs
<br /> Starting Elev=995.95' SurF.Area= 4,920 sf Storage=692 cf
<br /> Peak Elev= 1,001.24' @ 24.81 hrs Surf.Area= 121,261 sf S#.orage= 303,189 cf (3Q2,497 cf above start)
<br /> Plug-Flow deterrtion time= 2,392.1 min calculated for 0.053 af(1% of inflow)
<br /> Center-of-Mass det. time= 1,683.6 min (2,518.2 -834.6)
<br /> Volume Invert Avail.Storaqe Storacle Descnption
<br /> #1 995.80' 739,346 cf Custom Stage Data (Prismatic)Llsted below(Recalc)
<br /> E(evation SurF.Area Inc.Store Cum.Store
<br /> {feet) (sq-ft) (cubic feet} (cubic-feet)
<br /> 995.80 4,306 d Q
<br /> 996.00 5,125 943 943
<br /> 998.00 32,539 37,664 38,607
<br /> 1,000.00 97,056 129,595 168,202
<br /> 1,002.00 136,204 233,260 401,462
<br /> 1,004.00 201,680 337,$84 739,346
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