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iii iiiiiiiiiiiiiiii <br />STATE OF CC~LV 9icxliv <br />MINED LAND RECLAMATION DIVISION <br />Department of Natural Resources <br />7313 Sherman SI., Room 275 <br />Denver, CO 80203 <br />303 8663567 <br />FAX~303 832-8706 <br />September 24, 1991 <br />Mr. Larry Reschke <br />Powderhorn Coal Company <br />P.O. Box 1430 <br />Palisade CO 81526 <br />OF COO <br />~Fs 47 <br />Ne ~+~0 <br />0 <br />ry ~~ w. <br />.~ :~~ . <br />/8'!6 ~ <br />Roy Ramer. <br />Gavemor <br />Fred R. 6anla. <br />Division Director <br />RE: Road~e and Cameo Mines Technical R~~ision 11 (C-81-041) <br />Dear Mr. Reschke, <br />The Division has reviewed Powderhorn Coal Company's Request for a <br />technical revision to the coal mining permit at Roadside and Cameo <br />Mines. Based on our review, additional information is needed <br />before a decision can be made regarding the revision. <br />Specific design information and/or illustrations for the oil <br />skimmers at spillway entrances, and for the spillway gates need to <br />be submitted to the Division. <br />The Division would recommend that the three bend gate configuration <br />at the primary spillway be abandoned due to the increased <br />possibilities of fouling and clogging created at each bend. The <br />Division would propose that the original primary spillway be sealed <br />and a new inlet installed at the base of the elbow of the emergency <br />spillway. Such a configuration would require just one bend to join <br />the six inch (primary spillway) horizontal pipe with its riser to <br />the desired discharge elevation. <br />As of this date, the Division has not yet received proof of <br />publication from Powderhorn for the proposed technical revision. <br />Please submit such proof as soon as it is available. <br />If you have any questions, or are in need of additional <br />information, please call me. <br />Sincerely, <br />Susan L. Morrison <br />Physical Scientist <br />cc: Larry Routten, MLRD <br />