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6/17/96 page 1 <br />Bowie No. 2 Mine <br />• <br />Coal Waste Hank <br />1.8-inch 10-Year, 24-Hour Storm Event <br />BASIN SUMMARY <br />BASIN ID: Aia <br />SCS METHODOLOGY <br />TOTAL AREA........ <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />NAME: EAST PILE TOP <br />0.69 Acres <br />TYPE2 <br />1.80 inches <br />5.00 min <br />ABSTRACTION COEFF: 0.20 <br />TcReach - Shallow L: 150.00 ks:13.00 s:0.2800 <br />PEAK RATE: 0.85 cfs VOL: 0.05 Ac-ft TIME: 725 min <br />BASIN ID: Alb <br />SCS METHODOLOGY <br />TOTAL AREA........ <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />NAME: WEST PILE TOP <br />0.69 Acres <br />TYPE2 <br />1.80 inches <br />5.00 min <br />BASEFLOWS: <br />AREA... <br />CN..... <br />TC..... <br />BASEFLOWS: <br />AREA... <br />CN..... <br />TC..... <br />0.00 cfs <br />PERV <br />0.69 Acres <br />90.00 <br />2.0o min <br />0.00 cfs <br />PERV <br />0.69 Acres <br />90.00 <br />2.00 min <br />ABSTRACTION COEFF: 0.20 <br />PEAK RATE: 0.85 cfs VOL: <br />0.05 Ac-ft TIME: 725 min <br />• BASIN ID: Ala <br />SCS METHODOLOGY <br />TOTAL AREA........ <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br /> <br />NAME: EAST PILE FACE <br />1.04 Acres <br />TYPE2 <br />1.80 inches <br />5.00 min <br />BASEFLOWS: <br />AREA... <br />CN..... <br />TC..... <br />0.00 cfs <br />PERV <br />1.04 Acres <br />90.00 <br />2.00 min <br />ABSTRACTION COEFF: 0.20 <br />PEAK RATE: 1.28 cfs VOL: <br />BASIN ID: Alb <br />SCS METHODOLOGY <br />TOTAL AREA........ <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />0.08 Ac-ft TIME: 725 min <br />NAME: WEST PILE FACE <br />1.19 Acres <br />TYPE2 <br />1.80 inches <br />5.00 min <br />ABSTRACTION COEFF: 0.20 <br />PEAK RATE: 1.47 cfs VOL: <br />BASEFLOWS: <br />AREA... <br />CN..... <br />TC..... <br />0.00 cfs <br />PERV <br />1.19 Acres <br />90.00 <br />2.00 min <br />0.09 Ac-ft TIME: 725 min <br />IMP <br />0.00 Acres <br />0.00 <br />0.00 min <br />IMP <br />0.00 Acres <br />0.00 <br />0.00 min <br />IMP <br />0.00 Acres <br />0.00 <br />0.00 min <br />IMP <br />0.00 Acres <br />0.00 <br />0.00 min <br />ADDZUACY-O1 <br />