2013-05-29_HYDROLOGY - M1985112 - Laserfiche WebLink

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DEPARTMENT OF NATURAL RESOURCES DIVISION OF WATER RESOURCES Mr Jared Dains, E.I. plegate Group, Inc. 1499 West 120th Ave., Suite 200 Denver, CO 80234 -2759 John W. Hickenlooper Governor Mike King Executive Director May 28, 2013 Dick Wolfe, P.E. Director /State Engineer RECEIVED Re: Loloff S cti t P Wa #nr S��pn #V Plan WDID 0302524) "MAY 2 9 2013 Loloff Pit, DRMS Permit No. M -195 -112 (WDID 0303012) Section 4, T5N, R65W, 6th P.M. �/' pM"OFRECLAMATION Water Division 1, Water District 3, Weld County IWI MANDSAFETY Approval Period: January 1, 2013 through December 31, 2013 (AMENDMENT #1) Contact Phone Number for Mr. Dains: 303 - 452 -6611 Dear Mr. Dains: We have reviewed your letter dated March 27, 2013 requesting approval of a substitute water supply plan ( "SWSP ") amendment on behalf of Loloff Construction, Inc. ( "Loloff' or "Applicant ") to cover depletions caused by an existing gravel pit operation. This amended SWSP shall replace, in entirety, the SWSP approved for this site on December 31, 2012. The required renewal fee of $257 (receipt no.3659577) has been received. SWSP Operations The primary purpose of this amendment is to add dewatering operations to reflect a change of mining operation from wet mining to dry mining. Due to the new dewatering activities the exposed ground water will decrease, there will no longer be an intermittent fill concurrent with mining, and water use for dust control will increase. At the time of approval of this SWSP the Applicant's DRMS mining permit did not allow for dewatering. This SWSP does not authorize any dewatering operations until a Technical Revision is approved by DRMS to allow such dewatering operations to occur under the DRMS mining permit. The Loloff Pit is a gravel pit operation located in the SE% of the NW% of Section 4, Township 5 North, Range 65 West of the 6th P.M., in Weld County. This SWSP will make replacements to the Cache La Poudre River for depletions resulting from mining operations during the 2013 plan year, and for lagged depletions from past operations at the Loloff Pit. Consumptive uses at the Loloff Pit site include evaporative losses from exposed ground water within the permit boundaries, and operational uses. No mining occurred in 2012 however the operator anticipates that the site will be mined below the water table during 2013. The replacement sources proposed to be utilized in this SWSP are leases with the City of Aurora and the Graham Drainage Ditch Company. The well permit issued for this site (Well permit no. 74793 - F)does not authorize dewatering. Therefore, a new well permit is required to be issued prior to the start of dewatering activities. 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 Keffice 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