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ROY ROMER <br />Governor <br />F,~O pFO,P9o • <br />~, p. <br />** ~ oY {~* <br />f~ <br />* X876 ~ <br />• <br />III III IIIIIIIIIIIII <br />OFFICE OF THE STATE ENGINEER <br />DIVISION OF WATER RESOURCES <br />1313 Sherman Street-Room 818 <br />Denver, Colorado 80203 <br />(303) 866-3581 <br />April 18, 1990 <br />MEMORANDUM <br />T0: Michael J. Boyd, Mined Land Reclamation Division <br />JERIS A. DANIELSON <br />State Engineer <br />~~~. _ <br />tF')~ .; U <br />~., <br />-~•. <br />_ ~;.:,, <br />„ ^f rt <br />FROM: James R. Hall, Division of Water Resources -~~~ <br />SUBJECT; United Companies, Virginia Acres Pit, File No. M-90-021 <br />NE1/4 NW1/4 Sec. 20, T1N, R1 E, UTE PM <br />We have the following comments on the above referenced application to mine <br />gravel i~rom a 17.7 acre site in Mesa County. <br />The applicant did not provide an estimate of water required to support the <br />operation, but does state that during dewatering 0.3 mgd will be discharged <br />and that excavation will proceed to 8 to 10 feet below the ground water <br />level. The exact size of the resulting pond was not stated. Water for the <br />operation is to be supplied from water rights owned by United Companies in the <br />Grand Valley Irrigation System in Grand Junction. Before any water that is <br />not decreed for commercial or mining use can be used in this operation, the <br />applicant must obtain a Water Court decree for the change in use or a <br />substitute supply plan approved by the Stata Engineer. <br />The applicant indicates that ground water will be encountered and exposed in <br />this operation. No well permit has been obtained from this office for the <br />ground water lake as per Section 37-90-137 (11) (a) (I), C.R.S. (1973)(1989 <br />Supp.). The applicant may not mine to an elevation that will encounter and <br />expose ground water until the well permit has been obtained. Since the <br />operation is in an area that is not considered to be over-appropriated, a well <br />permit may be available. An application will be reviewed upon submittal. <br />The application does not state whether or not any wells may be affected by the <br />dewateri~ng operation. We recommend that a plan for monitoring drawdown caused <br />by this operation be implemented, and a mitigation plan be developed to <br />address remedial procedures if any wells will be effected. <br />JRH/JTS: t.l f/9866I <br />cc: Orlyn Bell, Division Engineer <br />