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0 <br />• <br />Peabody Sage Creek Mine <br />PECOCO Pond Design <br />HYDROLOGIC INPUT PARAMETERS <br />Peabody Sage Creek Mine curve number (CN) values are based on CN values previously approved by CDRMS for the <br />Seneca II Mine, Permit C -80 -003. The CN values are presented in the Seneca II Mine PAP in Appendix 7 -12, Postiming <br />Drainage Control. Values are adapted from Urban Hydrology for Small Watersheds, Technical Release No. 55 (TR -55), <br />Soil Conservation Service, 1986. <br />2.05.3 -E2. D -1.46 <br />Revised 12/09 <br />SEDCAD4 <br />WATERSHED ID <br />Structure 16 - SWS1 <br />Culvert SCA 0 <br />Watershed Area: <br />n/a <br />Curve Number: <br />HYDROLOGIC <br />CURVE <br />AREA <br />WATERSHED TYPE <br />GROUND COVER <br />SOIL GROUP <br />NUMBER <br />(acres) <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />Total I <br />I <br />I n/a <br />CURVE NUMBER <br />n/a <br />Peabody Sage Creek Mine curve number (CN) values are based on CN values previously approved by CDRMS for the <br />Seneca II Mine, Permit C -80 -003. The CN values are presented in the Seneca II Mine PAP in Appendix 7 -12, Postiming <br />Drainage Control. Values are adapted from Urban Hydrology for Small Watersheds, Technical Release No. 55 (TR -55), <br />Soil Conservation Service, 1986. <br />2.05.3 -E2. D -1.46 <br />Revised 12/09 <br />