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III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Stree[, Room 818 <br />Denver, Colorado 80203 <br />Phone 13031 866-3587 <br />FAX (303) 866-3589 <br />September 7, 1994 <br />41=(';clvED <br />Ms. Erica S. Crosby SEP O r" 1994 <br />Environmental Protection Specialist <br />Colorado Division of Minerals & Geology ~;,,,;,~,1 ~ ,,, <br />1313 Sherman St., Room 215 ' "`" ~ ~~~icoy <br />Denver, CO 80203 <br />Re: Technical Revision #18 Review for Permit No. C-81-041 <br />Dear Ms. Crosby: <br />OF ~~O <br />N,zO <br />.~~ <br />~ /!76 ~ <br />Roy Romer <br />Governor <br />lames 5. Lochhead <br />Ezecutive Director <br />lial D. Simpson <br />State Engy'neer <br />The above referenced Technical Revision proposes to revise underground coal mining operations. <br />I was not provided a copy of the engineering report as requested. However, the following potential <br />water resource impacts were reviewed after a discussion with Larry Oehler of your office. <br />There's apparently been some mention of relocating a company gaging station sometime in the <br />future to monitor flow on a tributary of Cottonwood Creek. There's no diversion of state waters <br />nor application to beneficial use, so that water resource impacts are not an issue. <br />2. There are apparently no new diversions of water proposed and no additional uses of water being <br />identified which might result in a water resource impact. <br />3. There is apparently a proposal to change the discharge point of pumped mine water sometime <br />in the future. The current discharge was identified as occurring on the west edge of the SW1/4, <br />Sec. 34, T10S, R98W, 6th P.M. directly to the Colorado River of approximately 250 gpm. The <br />proposed change is to change the discharge point of approximately e0 gpm to a point in the <br />NE7/4, Sec. 11, T11S, R98W, 6th P.M. There are no intervening water rights nor gaging stations <br />which might be adversely impacted along the subject reach of the Colorado River. <br />4. Discharges at the southern point in Sec. 11 may, in fact, be of a better quality than water pumped <br />from the mine from the northern point. The subsequent discharge of better quality water will <br />enhance existing downstream beneficial uses. <br />In conclusion, there are apparently no adverse water resource impacts associated with the <br />proposed revision as conveyed to me by Mr. Oehler. <br />Sincerely, <br />Chuck Roberts <br />Professional Engineer III <br />CGR/jmg:5009 <br />