2012-02-16_HYDROLOGY - M2000041 - Laserfiche WebLink

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Mr. Mark McLean, P.E. D eere & Ault Consultants Inc. 600 S. Airport Road, Building A, Suite 205 Longmont, CO 80503 DEPLETIONS DEPARTMENT OF NATURAL RESOURCES - re: I DIVISION OF WATER RESOURCES February 16, 2012 Re: Evans #2 Pit, 2011 -2012 Substitute Water Supply Plan Renewal DRMS File No. M- 2000 -04 -- SE /4 Section 35, SW1/4 Section 36, T20S, R63W, 6th P.M., and NW1/4 Section 1, NE' /4 Section 2, T21S, R63W, 6th P.M. Water Division 2, Water District 14 RErrNFD SWSP Plan ID 2709 Plan Period: April 1, 2011 — March 31, 2012 Dear Mr. McLean: PLAN OPERATION r "P Division of Reciamatior. Mining & Safety Office of the State Engineer 1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303 - 866 -3581 • Fax: 303 - 866 -3589 www.water.state.co.us John W. Hickenlooper Governor Mike King Executive Director Dick Wolfe, P.E. Director /State Engineer We have reviewed your December 31, 2010 and March 29, 2011 letters requesting renewal of the substitute water supply plan for 2011, in accordance with Senate Bill 89 -120 for a sand and gravel pit (well permit no. 54064 -F, ID 1406561) owned by Stonewall Springs Quarry, LLC /Morley Companies and operated by Fremont Paving & RediMix, Inc. (Fremont Paving). The required renewal fee of $257.00 for the 2011 plan year has been accepted under receipt no. 3648826. The applicants shall be responsible for compliance with this plan, but the State Engineer's Office may also pursue the landowner for eventual compliance. This pit did not exist, and no ground water was exposed, prior to January 1, 1981. This plan proposes to replace depletions to the Arkansas River that result from mining aggregate. There will not be a concrete batch plant. Previous approvals prior to 2009 were for dry mining, with the only water exposure consisting of dewatering trenches (0.3 acre), a collection area (0.1 acre), and a return trench (0.1 acre). Well permit no. 54064 -F (ID 1406561) was obtained to expose water in this pit. Fremont Paving will continue to mine the site with an allowance to disturb up to 50 acres. The exposed ground water areas consist of 5 acres of pond area, 0.3 acre of dewatering trenches, 0.1 acre of collection area, and 0.1 acre of return trench. The total of 5.5 acres of exposed ground water will result in 19.42 acre -feet of evaporative loss (see attached Table 1). A total of 15.33 acre -feet of water is expected to be consumed by mining of 500,000 tons of aggregate (14.72 acre -feet) and approximately 0.61 acre -feet used for dust suppression (see attached Table 2). Total operations with evaporation will result in 34.75 acre -feet of consumptive use. Projected uses and consumption during the 2011 plan year are as shown in the attached Tables 1, 2, and 3 (Revised).