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These strata consist of shale, siltstones and coal. As such these shales are considered <br />aquitwds and aquicludes. Records from the State Engineers office indicate that permitted <br />water wells in the vicinity of the ground water monitoring holes draw water from an <br />upper sandstone aquifer in the Morrison Formation which underlies the Dakota <br />Formation Ihis aquifer is located about 100 to 150 feet below the bottom of the lower <br />Dakota seam the nearby New Horizon Mine is located in the strata that would be <br />encountered by the ground water monitoring holes and pilot holes Data and experience <br />fiom New Horizon Mine show that this strata will hold water which is the result of <br />recharge primarily from the percolation of seasonal irrigation water While water is likely <br />to be encountered in the ground water monitoring holes and pilot holes, these holes will <br />not encounter the upper sandstone aquifer of the Monison Formation. <br />ITEM 5.B.6 the monitoring holes at each site will be spaced approximately 10-20 feet <br />from one another the pilot hole site at each site will be plugged and reclaimed in <br />accordance with DRMS regulations (See Figure 2) After the hole is drilled to total <br />depth, bentonite gel will be pumped down the drill pipe to the surface and the hole will <br />then be logged with geophysical tools When logging is complete, each pilot hole will be <br />plugged by pouring two 50 pound bags of 3!8" bentonite chips down the hole Drill <br />cuttings will fill the hole to ten feet from the surface the final ten feet will be filled with <br />concrete and a survey cap marking the hole will be set in the concrete at the surface. the <br />ground water monitoring holes will provide "baseline" water monitoring data (water <br />levels and water quality data) and long term monitoring as a mining permit from <br />Colorado DBMS may stipulate. When the useful life of the ground water monitoring <br />holes have expired, the dry ground water monitoring holes will be plugged and <br />reclaimed by placing :318" bentonite chips or bentonite pellets in the hole from total depth <br />to height 20 feet above the top of the perforations in the casing Remaining casing <br />volume will be filled with earth the top of the PVC casing will be removed below the <br />surface and the top ten feet of the hole will be filled with sakcrete (dly mix sand, gravel <br />and cement) and an aluminum cap will be set in the top of the concrete. the ground water <br />monitoring holes that do have water in them will be plugged by pumping either thick <br />bentonite gel (drilling mud) or cement grout through a pipe to the bottom of the hole to a <br />height of 20 feet above the water level or 20 feet above the perforations whichever is <br />greater the rest of the hole would then be plugged and reclaimed as described for the dry <br />ground water monitoring holes the site area will be cleared of any debris and seeded as <br />stipulated previously <br />ITEM 5.13.7 No water wells are to be developed <br />ITEM 6.0 The permittee will request Colorado Division of Wildlife to determine <br />whether the exploration activity will jeopardize the continued existence of any <br />endangered of threatened specie. Iheir findings will be submitted to Colorado Division <br />of Minerals and Geology. <br />ITEM 7.0 No <br />ITEM 8.0 Yes