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These assumptions, however, do not hold true for Well WW14. Prior to <br />mining in the north area (November 1992), this well was almost always <br />dry (see the 1993 AHR for a complete listing of earlier water level <br />data). Since this particular portion of the Wadge seam was dry prior to <br />mining, spoils water will now contribute 1000 of the water present. TDS <br />values at this well display a stable trend. <br />- Sage Creek Overburden. This unit exits between the Wadge and Wolf <br />Creek coal seam. Mining of the Sage Creek coal seam began in September <br />2003. Well WSOV24 was drilled in August 2001 in the II-W South area. <br />Only five samples were collected. This well failed due to a landslide <br />that occurred in April 2003. A replacement well, WSOV24, was drilled in <br />September 2004. TDS values at this well display a decreasing trend. <br />- Sage Creek Coal. Mining of the Sage Creek coal seam began in <br />September 2003. Well WSC24 was drilled in August 2001 in the II-W South <br />area. Only five samples were collected. This well failed due to a <br />landslide that occurred in April 2003. A replacement well, WSC25, was <br />drilled in September 2004. TDS values at this. well display a decreasing <br />trend. <br />- Wolf Creek Coal. Mining of the Wolf Creek coal seam began in October <br />2003. One well monitors the water quality in this coal seam in the II-W <br />South area. Well WWC24 was drilled in August 2001 in the II-w South <br />area. Only five samples were collected. This well failed due to a <br />landslide that occurred in April 2003. A replacement well, WWC25, was <br />drilled in September 2004. TDS values at this well display a decreasing <br />trend. <br />- Wolf Creek Overburden/Underburden. Wells WWCOV24 (overburden) and <br />WWCU24 (underburden) were drilled in August 2001 in the II-W South area. <br />Only five samples were collected for each well. These wells failed due <br />to a landslide that occurred in April 2003. Replacement wells, WWCOV25 <br />and WWCU25, were drilled in September 2004. TDS values at these wells <br />display decreasing trends. <br />9 <br />