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~/~ 177 ~3 ~ <br />r; ~~ ~ STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Street, Room 818 <br />Denver, Colorado 80203 <br />Phone (303)866-3581 <br />FAX (303) 866-3589 <br />~' <br />August 10, 2007 <br />l <br />v <br />http://www.waterstate.w.us RECEIVED <br />Mr. Jeffrey Clark <br />r Bishop-Brogden Associates, Inc. /IUG 1 3 2001 <br />` 333 West Hampden Avenue; Suite 1050 ~,,,,,,,,, ,,, „~clamation, <br />Englewood, Colorado 80110 ~ Mining and Safety <br />Re: North Tower Pit, Substitute Water Supply Plan <br />DMG File No. (mined under M-77-436) <br />Section 23, T1S, R87W of the 6th P.M. <br />Water Division 1, Water District 2 <br />Approval Period: December 1, 2005 through July 31, 2008 <br />Dear Mr. Clark: <br />of co <br />„s'. <br />•.+ <br />RO <br />'leas' <br />Bill Ritter, Jr. <br />Governor <br />Hams D. Sherman <br />Executive Dlredor <br />(vacant) <br />State Engineer <br />This letter is in response to your application of December 18, 2006 on behalf of Ready <br />Mixed Concrete Company (Applicant) requesting a substitute water supply plan (SWSP) <br />for a sand and gravel pit owned and operated by Applicant in accordance with 37-90- <br />137(11) C.R.S. The Applicant shall be responsible for compliance with this plan. The <br />required fee of $1,593 for the substitute water supply plan has been paid. <br />Plan Operations <br />This plan seeks to replace depletions resulting from the evaporative losses at the North <br />Tower Pit ("Gravel Pit"). The depletions that result from the previously mined site <br />include only evaporation. The proposed replacement source is consumptive use credits <br />from 18 shares owned in the Fulton Ditch and a contract with the South Adams County <br />Water and Sanitation District (SACWSD). <br />Depletions <br />This plan describes the maximum proposed water uses from August 2007 through July <br />2008 for this existing pit. The proposed plan anticipates a maximum year depletion of <br />98.0 acre-feet for the currently exposed groundwater surface area of 28.0 acres. The <br />edge of this existing pit is located less than 100 feet from South Platte River and the <br />resulting evaporative depletions are assumed to be instantaneous. No groundwater was <br />exposed at this location prior to January 1, 1981. <br />You have provided a monthly breakdown of the maximum annual depletions totaling <br />98.0 acre-feet of evaporative loss from a maximum of 28.0 acres of exposed <br />