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III IIIIIIIIIIIII III <br />The Pittsburg & Midway Coal Mining Co. <br />A Chevron Company <br />6400 South Fitltllers Green Circle, FnglevAOd, CO X111-0991 <br />Mail Address: P.O. Bca 6518. Englewood, C090155{619 • FAX (30.3)930-0204 • Phone (303) 930-3H10 <br />November 2, 1993 <br />Permit C-80-001 <br />Technical Revision 25 <br />OVERNIGHT MAIL <br />~rnrr~ rrn <br />Ms. Susan L. Burgmaier 1993 <br />Colorado Division of Minerals and Geology ~~~ 3 <br />1313 Sherman Street, Rm # 215 <br />Denver, CO 80203 <br />Dear Ms. Burgmaier: <br />Enclosed are three (3) photographs showing the drainage pattern of runoff from the shop facilities. <br />The photos were taken in the summers of 1979, 1986 and 1993. The drainage from the shop <br />facilities and the coal stockpile azeas use this same route in all of the photos. The shop facilities <br />drainage passes along the west side of the haulroad (south of the shop) while the coal stockpile and <br />bucket repair house drainage passes through culvert E-12 and joins the drainage on the west side of <br />the haulroad. <br />The 1979 and 1986 photos show the drainage being routed along the haulroad, through the culvert <br />at the explosives magazine and directly west to the old pit. The 1993 photo shows the drainage <br />continuing to be routed through the same ditch (the haulroad was realigned), through the culvert <br />and then routed along the explosives magazine to the south end of the pit (the proposed location of <br />the drop structure). <br />Should you have any questions or require additional information regarding the enclosed <br />information or the permit revision, please contact David Beverlin at the Edna Mine at your earliest <br />convenience. <br />Sincerely, <br />~~~~,,.~ <br />Brian D. Gontarek <br />Environmental Engineer <br />Enclosure <br />