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3/2/OS 11:21:49 am Western Surveyors Inc <br />ASHBYRN TOWNHOMES <br />EXISTING CONDITIONS <br />--------------------------------------------------- <br />--------------------------------------------------- <br />BASIN SUMMARY <br />BASIN ID: B002 <br />SBUH METHODOLOGY <br />TOTAL AREA.......: <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />NAME: UNDEVELOPED 2 YR STORM <br />0.45 Acres <br />TYPElA <br />1.50 inches <br />10.00 min <br />BASEFLOWS: <br />AREA..: <br />CN....: <br />TC....: <br />page 1 <br />--------------- <br />--------------- <br />0.00 cfs <br />PERV <br />0.42 Acres <br />86.00 <br />32.00 min <br />ABSTRACTION COEFF: 0.20 <br />TcReach - Sheet L: 140.00 ns:0.4000 p2yr: 1.50 s:0.0370 <br />PEAK RATE: 0.03 cfs VOL: 0.02 Ac-ft TIME: 490 min <br />� BASIN ID: BO10 <br />SBUH METHODOLOGY <br />'POTAL AREA.......: <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />NAME: UNDEVELOPED 10 YR STORM <br />0.45 Acres <br />TYPElA <br />2.20 inches <br />10.00 min <br />BASEFLOWS: <br />AREA..: <br />CN....: <br />TC..... <br />ABSTRACTION COEFF: 0.20 <br />PEAK RATE: 0.07 cfs VOL: 0.04 Ac-ft TIME <br />BASIN ID: B100 <br />SBUH METHODOLOGY <br />TOTAL AREA.......: <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />0.00 cfs <br />PERV <br />0.42 Acres <br />86.00 <br />32.00 min <br />490 min <br />NAME: UNDEVELOPED 100 YR STORM <br />0.45 Acres <br />TYPElA <br />3.20 inches <br />10.00 min <br />BASEFLOWS <br />AREA..: <br />CN....: <br />TC....: <br />ABSTRACTTON COEFF: 0.20 <br />PEAK RATE� 0.13 cfs VOL: 0.07 Ac-ft TIME <br />0.00 cfs <br />PERV <br />0.42 Acres <br />86.00 <br />32.00 min <br />490 min <br />IMP <br />0.03 Acres <br />98.00 <br />32.00 min <br />IMP <br />0.03 Acres <br />98.00 <br />32.00 min <br />IMP <br />0.03 Acres <br />98.00 <br />32.00 min <br />Z� <br />