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0 <br />• <br />West Elk Mine 2008 Annual Hydrology Report <br />rv <br />4.3 Sanitary Wastewater ............................................................................................41 <br />4.4 CDPS Discharge Summary .................................................................................. 43 <br />4.4.1 Outfall 007A ........................................................................................... 43 <br />4.4.2 Outfall 017A ........................................................................................... 45 <br />4.4.3 Bio-Monitoring Testing for Toxicity ...................................................... 45 <br />4.5 Sedimentation Ponds ............................................................................................ 49 <br />4.5.1 Ponds MB-1 and MB-2R ........................................................................ 50 <br />4.5.2 Ponds MB-3, MB-4, and MB-5 .............................................................. 50 <br />4.5.3 Pond FW-1 .............................................................................................. 50 <br />4.5.4 RPE Pond ................................................................................................ 50 <br />4.5.5 Pond SG-l ............................................................................................... 50 <br />4.5.6 Mine Water Polishing Pond .................................................................... 51 <br />4.5.7 WWTP Polishing Pond ........................................................................... 51 <br />4.6 Mine Water Inflows ............................................................................................. 51 <br />4.6.1 NW Panels Sealed Sump ........................................................................ 51 <br />4.6.2 NE Panels Sealed Sump .......................................................................... 51 <br />5.0 ASSESSMENT OF MINE-INDUCED HYDROLOGIC IMPACTS AND ANTICIPATED <br />IMPACTS IN WY 2009 ..........................................................................................................51 <br />5.1 Surface Water ....................................................................................................... 51 <br />5.1.1 Impacts to Area Stream Water Quality ................................................... 52 <br />5.1.2 Impacts to Area Stream Water Quantity ................................................. 57 <br />5.1.3 Impacts to the North Fork of the Gunnison River ................................... 57 <br />5.2 Springs and Seeps ................................................................................................ 59 <br />5.2.1 Impacts to Spring and Seep Water Quality ............................................. 59 <br />5.2.2 Impacts to Spring and Seep Water Quantity ........................................... 62 <br />5.3 Stock Ponds and USFS Water Resources ............................................................ 62 <br />5.4 Groundwater ........................................................................................................ 63 <br />5.4.1 Impacts to Groundwater Quality ............................................................. 63 <br />5.4.2 Impacts to Groundwater Quantity ...........................................................66 <br />?J <br />June 2009 HydroGeo, Inc.