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Draft West Elk Mine 2005 Annual Hydrology Report 19 <br />alluvium and hydrological monitoring measurements are taken at the end of an outflow pipe from <br />• an enclosed spring house. <br />3.2.4 Springs above the E Seam in the Dry Fork Drainage Basin <br />3.2.4.1 Sprite J-4 <br />Spring J-4 is located in East Gulch East of Horse Gulch and is tributary to Dry Fork and Minnesota <br />Creek. It is south of the SE mine panels and north of the South Lease Tract panels. This spring <br />issues from alluvium, is seasonal, and is normally dry in late summer or autumn. <br />3.3 Ground Water Monitoring <br />There are 28 monitored wells in the WY 2005 monitoring program, including four new sites added <br />since WY 2004. In WY 2005 MCC reinitiated monitoring of 4 existing wells: 23H-1, 23-H-2, 23- <br />H-3, and 23-H-4. Wells 23-H-1, 23-H-2, and 23-H-3 were completed in October of 1974 and well <br />23-H-4 was completed in August of 1979. Well 23-H-1 appears to have a compromised plastic <br />casing. According to a 1974 drawdown test document well 23-H-1 was completed to a depth of <br />604 feet. WY 2005 field data noted "audible water flowing, a possible break in the casing at 135 <br />feet, obstructions at 145 feet and 190 feet, and total depth or a terminal obstruction at 243 feet." <br />• Total depth field measurements in WY 2005 for well 23-H-2 and well 23-H-3 are actually deeper <br />than the reported completion depth in 1974, 387 feet completed to 376 feet and 243 feet compared <br />to 232 feet, respectively. All four wells had soft bottoms which could affect the total depth <br />measurements and may explain the discrepancies in two WY 2005 field measurements for well 23- <br />H-4, 225 feet and 144 feet. New baseline data for these wells are presented in this report. MCC <br />was unable to monitor five damaged wells: SOM-2-H, SOM-16-H, 96-27-1, SOM-45-HI, and <br />SO.W-1, due to collapsed casings in WY 2005. <br />The ground water monitoring wells aze divided into the following 7 categories for discussion <br />purposes: <br />• Facility Area Wells and Alluvial Wells <br />• Permit Area Wells completed in the Barren Member above F Seam <br />• Permit Area Wells completed in the F Seam <br />• Petrttit Area Wells completed in the E Seam <br />• Permit Area Wells completed above the E Seam <br />• Permit Area Wells completed in the B Seam <br />• Study Area Welts completed in the F Seam <br />September 2006 HydraGeo, Inc. <br />