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IVY PLACE - PROPOSED CONDITIONS <br /> 17059 - IVY PLACE - PROPOSED Type II 24-hr 1-YEAR Rainfall=2.47" <br /> Prepared by Microsoft Printed 7/17/2017 <br /> HydroCAD® 10.00-19 s/n 02202 ©2016 HydroCAD Software Solutions LLC Page 12 <br /> Pond 1P: UNDERGROUND FILT DET POND 1 - Chamber Wizard Field A <br /> Chamber Model= CMP_Round 12(Round Corrugated Metal Pipe) <br /> Effective Size= 12.0"W x 12.0"H => 0.78 sf x 20.00'L = 15.6 cf <br /> Overall Size= 12.0"W x 12.0"H x 20.00'L <br /> 12.0" Wide + 12.0" Spacing = 24.0" C-C Row Spacing <br /> 3 Chambers/Row x 20.00' Long +1.00' Header x 2 = 62.00' Row Length +12.0" End Stone x 2 = 64.00' <br /> Base Length <br /> 5 Rows x 12.0" Wide + 12.0" Spacing x 4 + 12.0" Side Stone x 2 = 11.00' Base Width <br /> 12.0" Chamber Height + 6.0" Cover= 1.50' Field Height <br /> 15 Chambers x 15.6 cf+ 9.00' Header x 0.78 sf x 2 = 247.8 cf Chamber Storage <br /> 1,056.0 cf Field - 247.8 cf Chambers = 808.2 cf Stone x 40.0% Voids = 323.3 cf Stone Storage <br /> Chamber Storage + Stone Storage = 571.1 cf= 0.013 of <br /> Overall Storage Efficiency = 54.1% <br /> Overall System Size = 64.00' x 11.00' x 1.50' <br /> 15 Chambers <br /> 39.1 cy Field <br /> 29.9 cy Stone <br /> f � <br /> I <br /> I <br />