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STATE OF COLCJRADO <br />OF__FICE OF THE STATE ENGINEER <br />r" ~~on of Natural Resources <br />rtment of Natural Resources <br />7373 Sherman Street, Room 818 <br />Oemer, Gs4xxdn 80203 <br />Phone (3031 AIsu-1507 <br />rnx Iw3t ea.-35av <br />Mr. James S. Miner <br />Builders Aggregate Company, Inc. <br />915 West Beaver Avenue <br />Fort Morgan, Coloradg 80701 <br />March 29, 1994 <br />Re: Builders Aggregate Pit Substitute Water Supply Plan, DMG M81112 <br />S'h, NW'1+, Section 31, T4N, R58W, 6th P.M. <br />Water Division 1, Water District 1 <br />Dear Mr. Miner: <br />~~~ <br />• re7s ~ <br />~r ttaner <br />cow. <br />worts s. t.ochheaa <br />Exttutive Dirtcta <br />Hal D. Simpson <br />Ante fngirmer <br />This teller is in response to your application for a subsdtate water supply plan fos the <br />Builders Aggregate pit in accordance with §37-80-12U C.R.S. The required fees of $270 for the <br />substitute water supply plan and $60 for the well permit application have been submitted. <br />The anticipated net depletion for this plan is 12.62 acre-feet per year for the 3.3 acres <br />of lake surface exposed after December 31, L980. According to information submitted, no <br />portion of the lake surface was exposed prior to December 31, 1980. You have provided a <br />monthly bmakdown of this annual depletion totalling 10.59 acre-feet of evaporative loss, 0.63 <br />acre-fit of water in the product and a 12.5 percent (1.40 acre-feet) transit loss from Riverside <br />Reservoir to the gravel operation (25 miles). <br />T'he proposed source of replacement is 12.62 acre-feet of 16.U acre-feet owned of <br />Riverside Irrigation District augmentation credits available from any one or all of the following <br />augmentation decrees: 88CW221, 88CW239, 88CW264, 88CW387, W-2919 Area III and/or <br />9UCW 189. The replacement water is groundwater return flow to the South Platte River pursuant <br />to the above decrees. <br />As required by Senate Bill 89-120, this substitute water supply plan has been provided <br />to an outside consultant for review. The consultant has recommended approval of the plan by <br />way of this letter. Based upon statutory requirements and the recommendations of the <br />consultant, I hereby approve the proposed substitute water supply plan in accordance with §37- <br />80-120, C.R.S. subject to the following conditions: <br />