2013-01-08_HYDROLOGY - M1978327 - Laserfiche WebLink

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Dear Mr. Williams: DEPARTMENT OF NATURAL RESOURCES DIVISION OF WATER RESOURCES January 7, 2013 r. Todd Williams, P.E. Williams and Weiss Consulting, LLC 5255 Ronald Reagan Boulevard, Ste. 220 Johnstown, CO 80534 RE: Kauffman No. 1 Substitute Water Supply Plan (WDID 0402530) Kauffman No. 1 Pit, DRMS No. 1978 -327 (WDID 0403009) E %, Section 20, T5N, R68W, 6th P.M. Water Division 1, Water District 4, Larimer County Approval Period: January 1, 2013 through December 31, 2013 Contact Phone Number for Mr. Todd Williams: 303 - 653 -3940 John W. Hickenlooper Governor Mike King Executive Director Dick Wolfe, P.E. Director /State Engineer , -Ji),N 08 2013 DIVISION OF RECLAMATION MINING AND SAFETY We have reviewed your letter of November 14, 2012 requesting renewal of the above referenced substitute water supply plan for a sand and gravel pit. The required fee of $257.00 for the renewal of this substitute water supply plan has been submitted (receipt number 3657786). The original substitute water supply plan was approved on April 6, 1992 and it was most recently approved on December 19, 2011. SWSP Operations The mine is located in Larimer County in the NE 1/4 of Section 20, Township 5 North, Range 68 West of the 6 P.M., and has well permit no. 42901 -F. According to your letter, there will be no aggregate production at the Kauffman #1 Pit during the term of this plan. Additionally, during 2012 all groundwater exposed to the atmosphere after December 31, 1980 have been backfilled so that there is no new evaporative depletions associated with the 2013 plan. The only consumptive uses at this site will be from dust control use. The replacement water will be supplied by a lease with the City of Loveland. In accordance with the letter dated April 30, 2010 (copy attached) from the Colorado Division of Reclamation, Mining, and Safety ( "DRMS "), all sand and gravel mining operators must comply with the requirements of the Colorado Reclamation Act and the Mineral Rules and Regulations for the protection of water resources. The April 30, 2010 letter from DRMS requires that you provide information to DRMS to demonstrate you can replace long term injurious stream depletions that result from mining related exposure of ground water. Since the operator has backfilled the site so that only pre -81 groundwater areas remain, there are no long terms injurious stream depletions from mining related exposure of groundwater. Depletions Pursuant to § 37- 90- 137(11)(b), C.R.S. and 09CW49, a gravel pit operator or property owner does not need to replace depletions that occur due to evaporation from ground water exposed prior to January 1, 1981 as a result of open mining of sand and gravel, regardless of whether mining continued after December 31, 1980. Previous SWSP have recognized that 36.2 acres of water surface was exposed prior to January 1, 1981 ("pre-81"). Due to the backfilling of all areas in excess of 36.2 acres 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 eC