2009-07-01_REPORT - C1980007 (6)

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West Elk Mine 2008 Annual Hydrology Report 36 • Table 7 Summary of the Groundwater Monitoring Program Monitored Area Water Level Field W Q Station Q Annual Lab Water Quality Period of Record Measurement (pH, cond, temp) 17-Wh, a rn.. U/nnc .....J A11 ..... 11I/. "- • • P-3 (MW-8) Mine facility area 3 x Year 3 x Year Low Flow Period ' 1985 to resent GP-4 (MW-9) Mine facility area 3 x Year 3 x Year Low Flow Period ° 1985 to present P-6 Mine facility area 3 x Year 3 x Year Low Flow Period 1997 to present GP-7 Mine facility area 3 x Year 3 x Year Low Flow Period 1997 to resent RPE-1 Mine facility area 3 x Year 3 x Year Low Flow Period ' 1996 to present RPE-7 Mine facility area 3 x Year 3 x Year Low Flow Period 1999 to resent Upper Dry Fork Alluvial SOD area 3 x Year 3 x Year Low Flow Period (2) 10/03 to present Lower Dry Fork Alluvial ' SOD area 3 x Year 3 x Year Low Flow Period (2) 10/03 to present I Wells comoleted in the Barren Mvmhar nhnvv F-Roam SOM-80 NE mine panels 3 x Year 3 x Year Low Flow Period " 1979 to present SOM-13 Down gradient of NE mine panels 3 x Year 3 x Year Low Flow Period " 1979 to 2006 SOM-45-1-11 SE mine panels 1979 to 2005 SOM-45-1-12 SE mine panels 3 x Year 3 x Year Low Flow Period 1979 to resent SOM-23-H-4 SOD area 3 x Year 3 x Year Low Flow Period z 2005 to 2006 Wells completed in ieF-Seam SOM-2-1-1 SE mine panels 1981 to 2005 SOM-16-H SE mine panels 1981 to 2005 SOM-C-76 SOD area 3 x Year 3 x Year Low Flow Period " 1978 to resent SOM-23-H-3 SOD area 3 x Year 3 x Year Low Flow Period (2) 2005 to present Wells co leted in the E-Seam 96-27-1 Box Canyon mine panels 1996 to 2005 03-11-1 Down gradient of W. Flatiron and Box Canyon panels 3 x Year 3 x Year Low Flow Period 10/03 to resent SOM-3E Up gradient of Box Canyon mine panels and SOD area 3 x Year 3 x Year Low Flow Period 12> 10/03 to present SOM-23-1-1-2 SOD area 3 x Year 3 x Year Low Flow Period 12 2005 to present Wells com leted above the E-Seam 6-2-2 East and up gradient of SOD area 3 x Year 3 x Year Low Flow Period ' 1996 to present Wells completed in -B-Seam SOM-129-H Down gradient of NE mine panels 3 x Year 3 x Year Low Flow Period 1993 to present So. W-1 Up gradient of SE mine panels and SOD area 1996 to 2005 RAV-4b Box Canyon mine panels 3 x Year 3 x Year Low Flow Period " 1995 to resent 01-11-1 Down gradient of W. Flatiron area 3 x Year 3 x Year Low Flow Period 2001 to present SOM-3B Up gradient of Box Canyon mine anels and SOD area 3 x Year 3 x Year Low Flow Period Z 10/03 to resent IOM-23-H-1 SOD area 2005 (suspect data) For sites with >5 years of data, lab parameters include TSS, TDS, Cond., pH, and Fe (diss & tot). 2) For sites with 5 years or less data, see Table 2 Shaded items - Wells removed from monitoring program because casing is compromised, blocked, or has collapsed June 2009 HydroGeo, Inc.