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<br />iii iiiiiiiiiiiiiiii <br />Mountain Coal Company ~~y~`r ""-'~r~~'~'~-~~/~~ '` <br />West Elk Mine ~ [.' ~ ~.E~~7Zt~~'.. ` " <br />Post Office Box 591 ~/` ,~ <br />Somerset, Colorado 81434 jJ'3 ~ T G (,'C <br />Telephone 303 929-5015 <br />April 19, 1993 <br /> -sue. ~.~ ~ ; •,, c <br />Ms. Christine Johnston ,? ~~ ~ 8 199,E <br />Colorado Division of Minerals and Geology 0; <br /> <br />Office of btined Land Reclamation y n , - :.a,. ` <br />, ;; , <br /> <br />1313 Sherman St., Room 215 ,`o,,,y} <br /> <br />Denver, CO 80203 0 <br />~ , <br />Re: Sample Drilling on the West Elk Mine Site <br />and Waterline Repair <br />Dear Christine: <br />As we had discussed last week, Mountain Coal I:ompany (MCI;), nas oeen <br />experiencing some sliding at the West Elk Mine site this Spring, a!org :t~ith <br />many other landowners in the North Fork Valley. In order to properly design <br />repairs to these areas, specifically the upper conveyor bents and the screening <br />plant areas, shallow core drilling must be conducted. Two to three holes, no <br />more than 40 ft. deep will be drilled at each site. The holes will then be <br />backfilled with the cuttings. All sites can be drilled from the existing access. <br />West Elk Mine's new access road has settled, creating a depression above the <br />lower fill wall. A hole will be drilled at this site as well, to determine if a water <br />saturated horizon exists. Geotechrucal engineers from Envirocon; Inc. and <br />GeoWest (the designing engineers) have inspected the site and believe it is likely <br />just settling of the road base under the asphalt. Depending on the outcome of <br />this test hole, the site may either be excavated, recompacted and resurfaced or <br />the depression merely resurfaced and/or the ditch to the south lined. <br />MCC has removed all of the underground storage tanks from the West Elk Mine <br />site. The waste oil tank was removed in 1990 and the five petroleum product <br />tanks removed in 1992. The Colorado Department of Health is requiring <br />additional soil sampling around the perimeter of both sites to verify that the <br />plume of contamination is coned to the immediate areas. On April 23rd up to <br />five shallow holes will be drilled and sampled at these sites, west and north of <br />the existing warehouse/shop building. The results will be submitted in MCC's <br />follow-up Corrective Action Plan to the Department of Health, along with <br />another request for closure. <br />~rnccrczo. <br />