2015-01-22_PERMIT FILE - C1996083A (5)

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6/17/96 page 1 Bowie No. 2 Mine Coal Waste Bank • 2.0-inch 25-Year, 24-Hour Storm Event --- -- - -------------------------------- BASIN SUMMARY BASIN ID: Ala SCS METHODOLOGY TOTAL AREA........ RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: EAST PILE TOP 0.69 Acres TYPE2 2.00 inches 5.00 min BASEFLOWS: AREA... CN..... TC..... • • ABSTRACTION COEFF: 0.20 TcReach - Shallow L: 150.00 ks:13.00 s:0.2800 PEAK RATE: 1.00 cfs VOL: 0.06 Ac-ft TIME: 725 min BASIN ID: Alb SCS METHODOLOGY TOTAL AREA........ RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: WEST PILE TOP 0.69 Acres TYPE2 2.00 inches 5.00 min ABSTRACTION COEFF: 0.20 PEAK RATE: 1.00 Cf5 VOL: BASEFLOWS: AREA... CN..... TC..... 0.00 cfs PERV 0.69 Acres 90.00 2.00 min 0.00 cfs PERV 0.69 Acres 90.00 2.00 min 0.06 Ac-ft TIME: 725 min BASIN ID: Ala NAME: EAST PILE FACE SCS METHODOLOGY TOTAL AREA.......: 1.04 Acres BASEFLOWS: RAINFALL TYPE....: TYPE2 PRECIPITATION....: 2.00 inches AREA..: TIME INTERVAL....: 5.00 min CN....: TC..... ABSTRACTION COEFF: 0.20 PEAK RATE: 151 cfs VOL: 0.09 Ac-ft TIME BASIN ID: Alb SCS METHODOLOGY TOTAL AREA........ RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: WEST PILE FACE 1.19 Acres TYPE2 2.00 inches 5.00 min ABSTRACTION COEFF: 0.20 PEAK RATE: 1.73 cfs VOL: BASEFLOWS: AREA... CN..... TC..... 0.00 cfs PERV 1.04 Acres 90.00 2.00 min IMP 0.00 Acres 0.00 o.oo min IMP 0.00 Acres 0.00 0.00 min IMP 0.00 Acres 0.00 0.00 min 725 min 0.00 cfs PERV 1.19 Acres 90.00 2.00 min IMP 0.00 Acres 0.00 0.00 min 0.11 Ac-ft TIME: 725 min AD6pUACT-UI