2011-11-16_HYDROLOGY - M1983176 - Laserfiche WebLink

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Mr. Rob Laird .Asphalt Specialties Co. 10100 Dallas St. Henderson, CO 80640 Dear Mr. Laird: DEPARTMENT OF NATURAL RESOURCES DIVISION OF WATER RESOURCES November 16, 2011 RECEIVED 10V 182011 Division of Reclamation. Mining & Safety Sw5P Re: Speer Mining Res rces Pit, Substitute Water Supply Plan (WDID 0202629) DRMS Permit No -83-176 Section 34, T1S, R67W, 6 P.M. Water Division 1, Water District 2, Adams County Period of Approval: November 1, 2011 — December 31, 2012 Contact Phone Number for Mr. Laird: 303 - 289 -8555 We have reviewed your letter of December 10, 2010, and the revisions from Mr. Peter Wayland of Weiland, Inc. dated January 27, July 7, September 7, and October 25, 2011 requesting amendment and renewal of the substitute water supply plan ( "SWSP ") for Asphalt Specialties Co., Inc. ( "Applicant ") to cover depletions caused by an existing gravel mining operation at the Speer Mining Resources Pit (WDID 0203059) in accordance with § 37 -90- 137(11), C.R.S. The required fee of $257 for the renewal of this SWSP has been received (receipt no. 3648306). Plan Operation The site is no longer being mined for sand and gravel, and reclamation is anticipated to begin shortly. Dewatering at the site has accordingly ceased, causing the pit to fill with ground water and resulting in the creation of a 26 -acre lake. It is estimated that 2.5 acres of the pit will be backfilled in the first year (2011) and 5.0 acres will be backfilled in the second year (2012). Until the site is completely backfilled or a liner is in place, a substitute water supply plan is needed to replace depletions resulting from the exposure of ground water to the atmosphere and operational losses. In accordance with the letter dated April 30, 2010 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 required 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. The DRMS letter identified four approaches to satisfy this requirement. In accordance with approach nos. 1 and 3, you have indicated that a bond has been obtained for $678,169 that can cover the cost of lining or backfilling the Speer Mining Resources Pit to prevent the exposure of ground water. 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 („ffik