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., <br />TRAPPER MINING INC. <br />III IIIIIIIIIIIIIIII <br />October 23, 1991 <br />CERTIFIED #P782939299 <br />Mr. Kent Gorham <br />Colorado Mined Land Reclamation Division <br />215 Centennial Bldg. <br />1313 Sherman St. <br />Denver, CO 80203 <br />Dear Kent: <br />RECEIVED <br />OCT 2 8 1991 <br />Mined Land <br />Reclamation Division <br />RE: Abandonment of GA-3, GA-4 and GA-5 monitoring wells as previousty approved in Trapper's 1989 <br />Annual Reclamation Report (see Section 2.8) to CMLRD. <br />The following report is submitted in accordance with Colorado regulation 4.07.3(2,3) and Trapper's <br />approved mining and reclamation permit which requires Trapper to report, within 60 days, the abandon- <br />ment oFany well used For monitoring purposes. In Trapper's 1989 Annual Reclamation Report, a request <br />was made to abandon three inactive groundwater monitoring wells (GA-3, GA-4 and GA-5) which have not <br />been in use since 1977. The wells were established to satisfy an EIS baseline requirement earty in the <br />mining and monitoring history of Trapper Mine. All three wells were drilled to monitor the QR wal seam <br />aquifer near the coordinates 406,OOON and 1417,700E. Two active monitoring wells (GA-1 and GA-2), <br />within the same area, are still monitored on a biannual basis as per our approved permit (permit section <br />4.8.5.2x). All three wells were sealed on 10/3/91 in accordance with appropriate state requirements and <br />Trapper's approved abandonment plan. <br />The primary purpose for abandoning these wells is not only that the wells are unmonitored, but this would <br />allow Trapper to construct a truck runaway ramp above the haulroad switchback referted to as the "S- <br />curve." The runaway yuck ramp would provide a safe road exit in the event of a haul truck brake failure <br />when descending Derringer Pit ramp roads 1 and 2. <br />Attached is a drill hole abandonment report form outlining specific abandonment information for each well. <br />Keno if you have any questionsn or concerns, please contact me. <br />Sincerely, ~ ~ /~ <br />~~~C~~/ <br />William Agnew <br />Sr. Environmental Engineer <br />CM~\OCI731 <br />Enclosure <br />c l.M. Mattern <br />W.S. Harding <br />B.D. Nicholson <br />file <br />P.0. Box 187 <br />Craig, Colorado 81626 <br />(303) 824-4401 <br />