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with TDS values of 770 and 1190 mg /1. A replacement well (WSC25) was drilled <br />in the summer of 2004. <br />Sage Creek Overburden <br />Well WSOV24 was drilled in August 2001 in the II -W South area adjacent to the <br />former Pond 016A embankment. The well failed due to a landslide in the spring of <br />2003 and was subsequently abandoned. Only five samples were collected. WSOV24 <br />was a flowing well. Initial samples displayed a Ca- Mg -HCO3 type water, with TDS <br />values of 660 and 760 mg /1. A replacement well (WSOV25) was drilled in the <br />summer of 2004. <br />Wadge Coal <br />The Wadge coal was the principal seam of interest within the original permit area, <br />and was also mined in the south extension area. It is typically 11 to 13 feet thick, <br />except where split by partings. <br />The Wadge coal outcrops along the east side of the permit area. These outcrops and <br />perhaps a portion of the overburden east of the permit area are thought to be the <br />major source of recharge to the Wadge. Depth to water and water quality are <br />monitored at five sites within and adjacent to the permit area. The varying amounts <br />of head measured at these wells again indicate that the major component of flow is <br />to the west. The amount of head within the Wadge, as in all the units in this area, is <br />a function of distance from the recharge area (anticlinal axis) and the type of <br />over /underburden present. <br />The Wadge coal is in a confined condition in most of the wells which have been <br />monitored. At well GW- 42- S2W -5W, a downdip well due west of the south pit <br />area, the Wadge appears to be semi - confined. While pumping this well, drawdown <br />was observed in an adjacent overburden completion well. This observation indicates <br />that there is, at this location, a hydrologic connection between the Wadge and the <br />overburden. <br />Aquifer tests were performed at two wells. One well failed during the test. The <br />transmissivity calculated at the other well was 0.03 ftZ per day, while storativity has <br />been estimated to be on the order of 1 x 10 -4. <br />Six wells have been sampled for water quality characteristics, five within or adjacent <br />to the original permit area and one within the south extension area (4W). 4W has <br />been dry since 2002. Due to safety concerns because of proximity to the highwall, <br />it was abandoned in August 2003 and was replaced in 2004, by WW25. Typically, <br />the quality of Wadge seam water varies from place to place. Generally, sulfate, <br />manganese and total dissolved solids exceed both U.S. EPA and National Academy <br />Seneca II -W Findings Document 29 C- 1982 -057 <br />Permit Revision No. 6 January 6, 2012 <br />