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Wolf Creek seam. If this occurs the hole will be cemented from the Wolf Creek seam back to the bottom of the <br />Wadge. After completion of drilling a 2" well will be constructed in the boring. The construction will be the same <br />• as described above. A completion diagram will be forwarded to the MLRD upon the conclusion of the <br />construction of the well. <br />The pad for the monitoring well will be of the same construction as used for the development drill holes. <br />However, a portion of the pad will be constmcted on the road thus minimizing the amount of disturbance <br />associated with installing this well. <br />Monitor We1195M001 <br />Access to the drill site will be on an existing ranch road. The drill site will be adjacent to the road. <br />The drill pad was approximately 50' x 100'. Topsoil was stripped from the pad area and stockpiled adjacent to the <br />pad. After topsoil was salvaged from the site, the site was leveled as necessary and mud pits were dug within the <br />boundary of the site. The material excavated from the pits was placed adjacent to the pit within the boundary of <br />the site. After drilling ceases the pits, once suitably dry, was backfilled with material excavated from them. A <br />trash pit was dug on the site, or an existing mud pit was used to collect trash, such as paper, cans, cazdboazd, etc. <br />No oily wastes were placed in the pit. The trash pit was backfilled when it is no longer needed. <br />The drill hole was approximately 1500 feet in depth and has a nominal diameter of 8 inches. The hole was drilled <br />with either air, water, foam, mist or any combination of the vazious circulation media. Any water azising from the <br />drilling containing cuttings passed through the mud pits before being discharged from the site. A secondary <br />sediment containment system of hay bales or silt fence was used to treat any dischazge from the site during drilling. <br />The hole was completed with 2 inch steel casing. An inflatable packer was placed above the Trout Creek <br />• sandstone and the hole was grouted to the surface <br />RESPONSE <br />fh) A description of steps to be taken to comply with the requirements of the Clean <br />Air Act (42 U.S.C. Sec. 7401 et seq.), the Clean Water Act (33 U.S.C. Sec. 1252 et seq.), and other applicable air <br />and water quality laws and regulations and health and safety standards, or a copy of an approved permit or <br />anolication for a permit. <br />TCC will continue to operate in accordance with air quality emission permits issued by CDPHE-APCD. Fugitive <br />dust control measures are employed as an integal part of the mining and reclamation operations. Compliance with <br />the air quality permits serves to effect compliance with the Federal Clean Air Act and the Colorado Air Quality <br />Control Act. Air pollution control measures aze discussed in greater detail under Rule 2.05.6(1), and a copy of the <br />Air Quality Emission Permits issued for the Foidel Creek Mine are presented in Exhibit 29, Emission Permits. <br />TCC will abide by the requirements of National Pollutant Dischazge Elimination System (NPDES) Permit CO- <br />0027154 issued by CDPHE-WQCD. Twentymile Coal Company is responsible for NPDES Permits No. CO- <br />0036684 and CO-0042161. Permit No. CO-0036684 establishes the effluent limitations for the Fish Creek Tipple. <br />Permit No. CO-0042161 established effluent limits at the Fish Creek Dewatering Facility. The dewatering facility <br />permit, issued in July of 1989, establishes effluent limitations for mine dischazge only; surface flow does not enter <br />the impoundment structure. <br />• <br />PR 03-06 2.05-122 05/07/03 <br />