Laserfiche WebLink
2.04.7 page 7 <br />Location <br />SW 28, 35, 11 <br />SE 29, 35, 11 <br />NE 32, 35, 11 <br />SE NE 32, 35, 11 <br />NW SW 32, 35, 11 <br />NE SE 31, 35, 11 <br />NW SW 31, 35, 11 <br />NE NW 6, 34, 11 <br />Coal elev.' Poteutiometric Sur." <br />7555' drill hole 7420' <br />7600' outcrop 7440' <br />7526' drill hole 7360' <br />7453' drill hole 7320' <br />7385' drill hole 7220' <br />7336' drill hole 7210' <br />7320' outcrop 7220' <br />7198' drill hole 7150' <br />Drill hole data is from confidential data. Outcrops are from National <br />'~ Potentiometric surface projections are based on structural contours s <br />Map OM 109 and U.S.G.S. 7'/Z feet Topographic Quadrangle Maps. <br />Aside from the aforementioned "perched" aquifers, all mine workings to <br />all coal within the permit area lies above the potentiometric surface of Hay Gull <br />expected that there will be any hydrologic consequences of mining. The only m< <br />out by National King Coal, LLC is in the well within the alluvial valley floor imn <br />of the mine. No other monitoring, preventative or remedial measures are deem <br />Coal data. <br />on U.S.G.S. <br />to are dry and <br />it is not <br />Loring carried <br />Gately north <br />necessary. <br />Well No. 50641, SW SE, Sec. 4, T34N R11W is more than one mile from the permit <br />• boundary and draws from the Cretaceous Cliff House Formation of the Mesa Verde Group. T. <br />D. of the well is estimated to be 135 feet above the highest known seam of the Menefee <br />Formation of the Mesa Verde Group. No hydrologic effects are expected. <br />Well No. 77395, NW SW, Sec. 8: T34N R11W is 3500 feet south of the peivtit boundary <br />of the federal lease modification area added to the permit as Permit Revision PRA-O5. Well <br />depth is 450 feet and water level is 364 feet. An exploratory core drill hole (A-13 A.T. Massey) <br />1800 feet to the northeast shows the coal seam elevation to be 7]40'. This positions the coal <br />seam a minimum of 36 feet above the water level at Well No. 77395. No hydrologic effects are <br />expected for this new lease acreage. The Probable Hydrologic Consequences document has <br />been updated to reflect changes brought about by PR-OS (See Appendix 4(7). <br />Well No. 158064: Randy Haugen; SE NE, Sec.12U,T34N R12W, use H, yield 4 gpm, <br />depth 500', water level 180' is about 6800' south of the permit boundary and is shown on Map C- <br />14. This well will be used as a water monitoring station because none of the other wells listed in <br />this area are active. Analysis will be performed quarterly and results will be included in the <br />annual hydrology report submitted to the Division. Water will be sampled for parameters listed <br />in 2.04.7, page 1 (Ground Water Monitoring). <br />The "Wiltze Well", located in the alluvial valley floor "downstream" from the west <br />sedimentation pond is also used as a water monitoring station. Analysis will be performed <br />quarterly and results will be included in the annual hydrology report submitted to the Division. <br />Water will be sampled for parameters Listed in 2.04.7, page 1 (Ground Water Monitoring). <br />December 1999 <br />