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bm ~~~ mow, ~~~ <br /> <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 />http:!lwww.water. state.co. us <br />Mr. Chris Weber / <br />Bishop-Brogden Associates, Inc. <br />333 W. Hampden Ave., Ste. 1050 <br />STATE OF COLORADO <br />March~2007 <br /><"~ c, <br />;~~ <br />~ fg~6 ~ <br />Englewood, CO 80110 <br />RE: Consolidated Substitute Water Supply Plan for <br />Transit Mix Concrete Co. Gravel Pits <br />Pueblo West M-77-573 <br />Pueblo East M-88-015 <br />Expiration Date: January 31, 2008 <br />Dear Mr. Weber: <br />Secs 5 8 6, T21S, 65W <br />Secs 31, 32, 8 33, T20S, R85W <br />Secs 34 8 35, T20S, R64W <br />Bill Ritter, Jr. <br />Governor <br />Hams D. Sherman <br />Executive Director <br />Hal D. Simpson, P E. <br />State Engineer <br />We have reviewed your November 16, 2006 submittal, requesting renewal of the <br />above referenced substitute water supply plans on behalf of Transit Mix Concrete Co. The <br />required fee of $514 (2 X $257/plan) for the substitute water supply plan has been received <br />(Transaction number 3611240 and 3613073). <br />PLAN OPERATION <br />The mining at the Pueblo West pit is completed and mining at the Pueblo East pit is <br />continuing. Transit Mix is continually dewatering the East pit during the mining process, <br />therefore, there will only be evaporation from the existing pit and a network of ditches used for <br />dewatering. The maximum ground water exposure that will occur during this plan at each pit is <br />given below. <br /> Total Pre-1981 Post-1980 <br />Pit Well ID # Well Permit Exposure Exposure Exposure <br /> acres acres acres <br />Pueblo West 1406220 44558-F 98.1 29.5 68.6 <br />Pueblo East 1406186 58617-F 12 0 12 <br />DEPLETIONS <br />The maximum annual consumption that will occur during this plan at each pit is given <br />below. Site depletions consist of evaporation losses, pumping for concrete production (100% <br />loss), excavation of wet product and pumping for product washing (4% loss by product weight), <br />and pumping for truck clean out (10% loss rate). The monthly distribution of the values, and the <br />lagged affects on the Arkansas River, are detailed on yourrTables 1 & 3, which are attached: <br />