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., r~ OFFICE OF THE STATE ENGINEER Division of Water Resources Department of Natural Re~urces 1311 $hrmran Street. Ruom N1N Denver. Cri6xado BU_'U3 Phone (3Ult Bb6-3s81 FA%(30111566-3iB9 4t O~ t~, . ~~, ~:~~ y•. win ^,,.rrKr l.~nr+y,r Arn j,,l.r[~r E.« ;ene Dirr o - hl.iri) jmgpp•. ,~.,~r t „~n.~• ~ _ _ ~TAT_F (~ sss November 19, 1992 Mr. Carl Hill Bestway Paving F'.O. Box 3189 Greeley, CO 80633 Re: 83rd J.V. Resource Pit Substitute Water Supply Plan, MLRI) M92069 NEl/4 SWl/4 Section 35, T6N, R66W, 6TH P.M. Water Division 1, Water District 3 Dear Mr. Hill: This letter is in response to your application for a substitute water supply plan for the 83rd J.V. Resource Pit in accordance with Section 37-80-120 C.R.S. (1991). The required fees of 570 for the substitute water supply plan and 560 for the well permit application have been submitred. The anticipated ner depletion for this plan is 14.59 acre-feet per year for the 0.95 acres of lake surface exposed after December 31, 1980. According to information submitted, no portion of the lake was created prior to December 31, 1980. You have provided a monthly breakdown of this annual depletion totalling 2.62 acre- feet of evaporative loss, 8.83 acre-feet of water in the product, and 3.13 acre-feet of water used for dust suppression. The proposed source of replacement is 15.71 acre-feet from 240 shares (1.11 acre-feet per share) owned in the Boyd and Freeman Ditch, or 14.1 shares. Also included in your monthly breakdown are the depletions felt by the river during the first year. This analysis was calculated because the pit is located 3,500 feet from the river and stream depletions from mining operations would nor be instantaneous. When this plan expires in October 1993, the anticipated depletions to the river in the pursuing years will still be your responsibility to augment. The yearly depletions, as calculated using the Glover technique, are anricipated to be 13.87, 14.52, 14.56 and 14.57 acre-feet for years two, three, four and five, respectively. The source of [he water provided by the Boyd and Freeman Ditch is diversions from the Cache la Poudre River. Dry-up of 10 acres historically imgated (1-57 acre-feet/acre co~or~Do of historic consumptive use) with the Boyd and Freeman Ditch will occur this year. The - acres dried-up need to be verilied by the Division Engineer prior to renewal of next year's plan.