229 DORN AVE 2016-01-01 MF Import

12/1/OS 1:50:53 pm Western Surveyors Inc ASHBYRN TOWNHOMES DEVELOPED CONDITIONS AS-HUILT STORM DRAINAGE CALCULATIONS _____________________________________________________ BASIN SUMMARY BASIN ID: D002 SBUH METHODOLOGY TOTAL AREA.......: RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: DF,VELOPED 2 YR STORM Q.4d_ Acres TYPElA 1.50 inches 10.00 min BASEFLOWS: AREA..: CN....: TC..... 0.00 cfs PERV 0.18 Acres 86.00 10.30 min ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 60.00 ns:0.1500 p2yr: 1.50 s:0.0200 TcReach - Shallow L: 140.00 ks:27.00 s:0.0120 impTcReach - Sheet L: 170.00 ns:0.0110 p2yr: 1.50 s:0.0200 PEAK RATE: 0.09 cfs VOL: 0.04 Ac-ft TIME: 480 min BASIN ID: D010 SBUH METHODOLOGY TOTAL AREA.......: RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: DEVELOPED 10-YR STORM 0.44 Acres TYPElA 2.20 inches 10.00 min BASEFLOWS: AREA..: CN..... TC..... 0.00 cfs PERV 0.18 Acres 86.00 10.30 min page 1 IMP 0.26 Acres 98.00 6.30 min ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 60.00 ns:0.2400 p'lyr: 1.50 s:0.0200 impTcReach - Sheet L: 170.00 ns:0.0110 p2yr: 1.50 s:0.0'L00 PEAK RATE: 0.15 cfs VCL: 0.06 Ac-ft TIME: 480 min BASIN ID: D100 SBUH METHODOLOGY TOTAL AREA.......: RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAN�E: DEVELOPED 100 YR STORM 0.44 Acres TYPElA 3.20 inches 10.00 min BASEFLOWS AREA..: CN..... TC..... 0.00 cfs PERV 0.18 Acres 86.00 10.30 min IMP 0.26 Acres 98.00 6.30 min ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 60.00 ns:0.2400 p2yr: 1.50 s:0.0200 impTcReach - Sheet L: 170.00 ns:0.0110 p2yr: 1.50 s:0.0200 PEAK RATE: 0.24 cfs VOL: 0.09 Ac-ft TIME: 480 min IMP 0.26 Acres 98.00 6.30 min �3 �