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DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />February 25, 2015 <br />Paul Weiss, P.E. <br />Williams and Weiss Consulting, LLC <br />5255 Ronald Reagan Boulevard, Ste. 220 <br />Johnstown, CO 80534 <br />Re: Loloff Substitute Water Supply Plan (WDID 0302524) <br />Lotoff Pit, DRMS Permit No. M-1985-112 (WDID 0303012) <br />Section 4, TSN, R65W, 6th P.M. <br />Water Division 1, Water District 3, Weld County <br />Approval Period: January 1, 2015 through December 31, 2015 <br />Contact Phone Number for Mr. Weiss: 970-221-5159 <br />Dear Mr. Weiss: <br />John W. Nickenlooper <br />Governor <br />Mike King <br />Executive -Director <br />Dick Wolfe, P.E. <br />Director/State Engineer <br />We have reviewed your letters dated December 17, 2014 and January 21, 2015 requesting <br />approval of a substitute water supply plan ("SWSP") on behalf of Lotoff Construction, Inc. ("Lotoff" or <br />"Applicant") to cover depletions caused by an existing gravel pit operation. This site was previously <br />covered under the combined SWSP for Aggregate Industries ("Al"); however a separate SWSP was <br />obtained by Lotoff for the site in 2008. The required renewal fee of $257 (receipt no. 3667825) has been <br />received. <br />SWSP Operations <br />The Lotoff Pit is a gravel pit operation located in the SESA of the NWA of Section 4, Township 5 <br />North, Range 65 West of the 6th P.M., in Weld County. Well permit no. 77467-F has been issued for the site. <br />This SWSP will make replacements to the Cache La Poudre River for depletions resulting from mining <br />operations at the Lotoff Pit during the 2015 plan year, and for lagged depletions from past operations at the <br />site. During this plan period, consumptive uses at the Lotoff Pit site will include evaporative losses from <br />exposed ground water within the permit boundaries, and operational uses. The replacement sources <br />proposed to be utilized in this SWSP are yield from one share of the Greeley Irrigation Company and a lease <br />of wholly consumable supplies from the City of Greeley. <br />Depletions <br />Consumptive use at the Lotoff Pit site will include evaporative and operational losses. Depletions <br />are assumed to impact the Cache La Poudre River perpendicular to the Lotoff Pit, just above the <br />headgate of the Ogilvy Ditch (WDID 0300937). The pit is proposed to be continuously dewatered during <br />this plan period to allow dry mining. <br />Based on a November 21, 2014 survey, there are a total of 1.52 acres of ground water exposed in <br />dewatering ditches at the site. Net evaporative depletions were calculated using a gross annual <br />evaporation of 45 inches from the exposed water surface, with a credit of 9.97 inches for effective <br />precipitation. No credit was claimed for ice cover periods. The net depletion of ground water due to <br />Office of the State Engineer <br />1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303-866-3581 • Fax: 303-866-3589 <br />www.water.state.co.us <br />