2009-03-19_PERMIT FILE - C1980005 (2)

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HYDROLOGY LIST OF APPENDIX (Continued) APPENDIX NO. 7-8f.3 Pond 008 Principal Spillway Replacement As$uik Repoli 7-6f.4 Sediment Pond 008 Permanent Impoundment Demonstration 7~g Permanent Impoundment Pecoco 7~g.1 As-Built Report PECOCO Impoundment 7-6h Spill Control Pond #2 As-Built 7-6i As-Built Report Truck Wash Ponds 7-6-7 Small Area Exemptions 7-7 Alluvial Valley Floors Reconnaissance Investigation 7-8 Seneca Coal Company Water Rights 7-9 Aquifer Test Information 7-10 Mid-Term Review Revision (1984) 7-10A Surface Water Monitoring Site Rating Curves 7-106 Letters of Agreement Concerning Final Impoundments 7-11 Pond Inspedion Report Fortes 7-11A Sediment Pond Sediment Storage Survey 7-12 Postmining Drainage Control 7-12.1 As-Built Report Drainage Channel SIIPM-1 LIST OF EXHBITS EXHIBIT NO. 7-1 Oil and Water Well Location Map 7-2 Hydrology Monitoring Site Location Map (Revised and Retitled, 1986) 7-2A Piezometric Contour Map of the Wadge and Wolf Creek Coal Aqu'ders and Water Table Contour Map of the Spoils 7-26 Piezometric Contour Map of the Wadge and Wolf Creek Coal Aqu'rfers and Water Table Contour Map of the Spoils 7-3 Regional Drainage Basin Map 7~ Premining °HYMO° Madel 7-5 HYMO Model Postmining Reach Map 7-6 Seneca II Mine Computer HYMO Routing Flows for 10, 25, and 100 Year Precipdation Event 7-7 Surface Hydrology Map 7-8 Wadge Impoundment #002 and Cross-Sedion 7-8A Wadge Impoundment #002 (Proposed Postmine) 7-9 Wadge Impoundment Outlet Details 7-10 N.W. Impoundment and Diversion Ditch 7-11 Northwest Impoundment 11003 7-11A Northwest Impoundment #003 (Proposed Postmine) • • CJ TR-37 x Revised 01/06