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~ d~ k, Q~~ <br />DS L STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1373 Sherman Street, Room 818 <br />Denver, Colorado 80203 <br />Phone f303) 866-3581 <br />FA% (303) 866-3589 <br />www.watecsiate.co.us <br />Jar. Jeffrey A. Clark <br />. /BBA Water Consultants, Inc. <br />Y 333 West Hampden Avenue, Suite 1050 <br />Englewood, CO 80110 <br />~ c <br />a~, <br />„~,~ <br />r <br />~~r <br />'raaB' <br />Bill Owens <br />August 10, Zoos ECEIVEp ~ma <br />Russell George <br />AUG 14 2006 Halz Dr Simpson, p.E. <br />Dlvislon of ReGamatlon, ~~ Engineer <br />Mining and Safety <br />RE: Consolidated Substitute Water Supply Plan <br />Valco Inc. Gravel Pits <br />Canon City East M- 59 Sec. 1 - T19S - R70W <br />Rocky Ford East Sec. 21 - T23S - R56W <br />Lamar East M-77-572 Sec. 29 - T22S - R46W <br />Dear Mr. Clark: <br />We have reviewed your March 30, 2006 letter and the previous December 30, 2004 letter requesting <br />renewal of the substitute water supply plan for the above referenced gravel pits owned by Vafco Inc. The <br />required $217 fee has been paid (transaction number 3602237). This approval will cover the period June 1, <br />2006 through May 31, 2007. <br />The maximum ground water exposure that will occur during this plan at each pit has been revised <br />since the March 31, 2000 approval letter, and those revised acres are as listed below. <br />Total Pre-1981 Post-1980 <br />Well Well Exposure Exposure Exposure <br />Pit Permit ID acres acres acres <br />Canon City East 52183-F 1205760 29.6 15.4 14.2 <br />Rocky Ford East 52017-F 1705986 46.3 17.4 28.9 <br />Lamar East 52184-F 6706363 35.4 13.2 22.2 <br />The maximum annual consumption that will occur during this plan at each pit is given below. The <br />monthly distribution of the values, and the lagged affects on the Arkansas River, are detailed on your table <br />which is attached. At the Canon City East pit pumping for batch plant uses is through well no. 22830-F <br />(Well ID 1205640). At the Rocky Ford East pit pumping for batch plant uses is through well no. 10525-F <br />(Well ID 1705985). Use of these wells for these purposes is covered by this plan. <br />Batch Plant <br /> Evaporation Operations <br />Pit aj__)f auf <br />Canon City East 44.02 11.66 <br />Rocky Ford East 115.98 3.07 <br />Lamar East 92.21 0 <br />Material Total <br />Washing Consumption <br />1~ ~ <br />0.03 55.71 <br />0.85 119.9 <br />0.20 92.41 <br />It is anticipated the replacement water will be provided from 2 shares of the Rocky Ford Ditch which <br />you have estimated yield 25.72 acre-feet annually, and from up to 250 acre-feet per year of consumable <br />water obtained from the Pueblo Board of Water Works, for which Valco has a 15 year lease (through June <br />15, 2013, extendable for one 10 year period). Valco has also obtained an allocation of 5.6 acre-feet of <br />