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r"• <br />STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natwal Resources <br />1313 Sherman Street, Room 818 <br />Denver, Colorado 80203 <br />Phone (303) 866-3581 <br />FAX (303) 866-3589 <br />www.watecstate.co.us <br />June 25, 2004 <br />Eric A. Bikis, P.G. <br />Project Manager <br />Wright Water Engineers <br />1666 N. Main Avenue, Suite C <br />Durango, CO 81301 <br />RE: Canyon Sand and Gravel Substitute Water Supply Plan <br />DMG File No. M-1988-057 <br />TWP 34N, RNG 3W, N.M. PM <br />Water Division 7, Water District 78 <br />Dear Mr. Bikis: <br />~N1-o~ <br />oF'cota <br />ye <br />+ + <br />~O~ <br />~ 1896 ~` <br />Bill Owens <br />Governor <br />Greg E. Walther <br />Executlve Director <br />Hal D. Simpson, P.E. <br />State Engineer <br />We have reviewed your June 14, 2003 submittal requesting a substitute water <br />supply plan in accordance with Senate Bill 89-120 for Canyon Sand and Gravel, which is <br />operated by Robert Scott. Mr. Scott submitted a well permit application and substitute <br />water supply plan request in 1990, along with the appropriate fees at that time, and <br />began operating shortly thereafter. However, the plan had not been approved due to <br />incomplete engineering and the permit was not issued. The status of this plan was <br />discovered during a review of the Division of Minerals and Geology amendment <br />application. Mr. Scott was informed at that time that he must stop mining until a <br />substitute water supply plan and a permit is issued. <br />The pit did not exist, and no ground water was exposed prior to January 1, 1981. <br />Mining is expected to be completed by March 2005. Mr. Scott is the land owner, as well <br />as operator of the gravel pit. The open pit is known as Angel Lake and is located just <br />downstream of the confluence between the West Fork of Devil Creek and Devil Creek. <br />A large berm separates Angel Lake from Devil Creek by less than 100 feet. Depletions <br />caused by evaporation from the lake and by water in the mined product accrue to Devil <br />Creek, which is potentially under administration from May 15'" through September 15"'. <br />The calculated depletions are identified on the attached table and are considered <br />instantaneous to Devil Creek. The evaporation is based upon a lake size of 4.31 acres, <br />which will be the maximum size at completion of the operation. Water contained in the <br />mined product is based upon a production rate of 6,000 cubic yards from May through <br />September. A phreatophyte credit for 3.07 acres has been applied to the evaporation <br />based upon the submitted pre-construction aerial photography. For the May 15 - <br />September 15 period, the analysis shows that approximately 1.51 acre-feet of depletions <br />to the stream may impact senior water rights. <br />RECEIVED <br />JUN 2 8 2004 <br />Division ~f Minerals and Geology <br />