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VOLUME 4 HYDROLOGY APPENDICES TABLE OF CONTENT3 • SURFACE WATER APPENDIX Figure 2.04-3 Watersheds of the General Area. Figure 2.09-7 Stevens Gulch Drainage Crossing at Fire Mountain Canal. Figure 2.09-8 Stevens Gulch Drainage Crossing at Farmers Ditch Table 2.04-8 Surface Water Balance for Upper Main Stem of Colorado River in Colorado by Sub-basins. Table 2.09-9 Quality of Water Data for Streams Draining Mountain and Coal Areas in Western Colorado. Table 2.09-10 Sources and Estimates of Annual Consumptive use in and Pollution in the ES Area Table 2.09-11 Hydrologic Data from Streams Draining Mountain and Coal Areas of Western Colorado Table 1 Orchard Valley Mine Surface Water Monitoring - Stream Gauging Stations Table 2 Orchard Valley Mine Surface Water Monitoring - Ponds Table 4 Stream Flow Monitoring Table 5 Flow Records - Continuous Recording Parshall Flumes Table 32 Significant Ponds and Springs EAST ROATCAP CREEK Water Rights and Surface Hydrologic Investigations by Simon Hydro-Search, (October, 1992) Hydrology of the Proposed Portal Bench - Orchard Valley West Mine STEVENS GULCH TERROR CREEK COAL GULCH MAIN AND WEST ROATCAP CREEKS • GROUNDWATER APPENDIX Table 3 Orchard Valley Mine Surface Water Monitoring - Springs Table 4-A Well Completion Data Summary Table 4-B Orchard Valley Mine Groundwater Monitoring - Wells EAST ROATCAP CREEK STEVENS GULCH TERROR CREEK COAL GULCH MAIN AND WEST ROATCAP CREEKS HYDROLOGIC BUDGET APPENDIX ALLUVIAL VALLEY FLOOR APPENDIX Initial Alluvial Valley Floor Reconnaissance of the CWI Proposed Lease Area, Westmoreland Resources, Inc. Alluvial Valley Floor Determination, Phase I, Geo-Hydro Consulting, Inc. Map 4-1 Hydrologic Reconnaissance, Springs, Ponds, Dri11 Holes, Stream Gauges Map 9-2 Potentiometric Surface Map of the Mesaverde Formation Map 9-3 Significant Rangeland Hydrology Features ~J /~1R-Io ~ /iPP2ovcl~ E/=~/aY Revised 09/21/01