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SENECA II-W MINE <br />• <br />SCS CURVE NUMBER: <br />CALCULATED HYDROLOGIC DATA <br />PROJECT: POND 006 <br />STRUCTURE:J1B1S1SW1 <br /> Soil Curve Area CN'Area <br />Cover Type Group Number (acres) <br />Undisturbed B 51 21.4 1091.4 <br />Reclaimed (over 3 years) B 71 17.3 1228.3 <br />Reclaimed (1 l0 3 years) B 71 84.2 5978.2 <br />Spoil B 86 88.2 7585.2 <br />opsoil Pile B 62 3.1 192.2 <br />TOTAL: 214.2 16075. <br />Weighted CN =Total CN'Area/ Total Area = 75 <br />DRAINAGE BASIN AREA: <br />• 214.2 Aaes <br />L <br />Page 1 <br />:~~ <br />