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<br />bm ~, aJ <br /> <br />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 />www.water.state.co.us <br />RECEIVED <br />~l; 2 3 2006 <br />Frank C. Healy <br />Helton & Williamsen, P.C. <br />384 Inverness Drive South, Suite 144 <br />En lewood CO 80112-5822 <br />August 15, 2006 Division of Reclamation, <br />Mining and Safety <br />9 <br />RE: 2006 - 2007 Lamar Pit Substitute Water Supply Plan, M-87-79 <br />NW7/4 Sec. 30, T22S, R46W, 6'" P.M. <br />Water Division 2, Water District 67 <br />Expiration Date: August 31, 2007 <br />Dear Mr. Healy: <br />pF' Cp~ <br />i <br />v~iP~' <br />.. <br />« r <br />•!e'!6 f <br />Bill Owens <br />Governor <br />Russell George <br />Executive Director <br />Hal D. Simpson, P.E. <br />Stare Engineer <br />We have received your February 20, 2006 submittal requesting renewal of the Lamar Pit <br />substitute water supply plan for All Rite Paving & Redi-Mix, Inc. (All Rite). This plan covers the <br />use of both the gravel pit (well permit no. 47193-F, Identification No. 6705999) and the adjacent <br />supply well (permit no. 47192-F, Identification No. 6705953). A $217 renewal fee has been <br />paid. <br />OPERATION <br />According to the renewal request there is currently no mining activity at the pit and there <br />are no water uses or depletions other than evaporation. The renewal request does imply mining <br />and concrete production could resume. If any such activity does resume depletions will be <br />based on product retention equal to 4% of mined product by weight and 100°/r, for uses related <br />to concrete production. <br />DEPLETIONS <br />The estimated maximum net depletion from the pit is 18.81 acre-feet per year due to <br />evaporative loss from a total of 4.6 acres of ground water exposure (18.73 acre-feet) and <br />evaporative loss from 2 small concrete lined ponds (0.08 acre-foot) following the scrubber that <br />out-flow to a 0.3 acre pre-1981 gravel pit pond. The water surface area is not expected to <br />fluctuate from discharges from the scrubbers, and discharge is only going to occur between May <br />1 and September 30. No portion of the water surface for the 4.6-acre pit was exposed prior to <br />January 1, 1981. Water requirements associated with commercial activities, such as concrete <br />batching and dust suppression, if needed as mining occurs, can be provided by well permit no. <br />47192-F in the amount of up to 1.5 acre-feet per year. See attached Table 1 for monthly <br />depletions. The pit is within 100 feet of the Arkansas River, therefore, diversions are considered <br />instantaneous. <br />