2011-02-08_HYDROLOGY - M2001107 - Laserfiche WebLink

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DEPARTMENT OF NATURAL RESOURCES /17Q DIVISION OF WATER RESOURCES February 7, 2011 Ms. Michelle L. Hatcher ,Clear Water Solutions 8010 S. Country Road 5, Suite 105 Windsor CO 80528 John W. Hickenlooper Governor Mike Kin Executive Director Dick Wolfe, P.E. Director/State Engineer V/ RE: Substitute Water ?upply_Plan, NCCI Pit #1, M-2001-107 (WDID 0202566) Section 24, T2N, R67W, 6 P.M. Water Division 1, Water District 2, Weld County 7E? IC:F11,/Rt? Approval period: January 1, 2011 through December 31, 2011 0 8 Z011 Contact phone number for Ms. Michelle L. Hatcher: 970-223-3706 Division fir necww1on, Dear Ms. Hatcher: Mining and safety We have received your letter of November 15, 2010, requesting renewal of the above-referenced substitute water supply plan to cover depletions caused by an existing gravel mining operation operated by Northern Colorado Constructors, Inc. ("NCCI" or "Applicant"). The required fee of $257.00 for the renewal of this substitute supply plan ("SWSP") has been submitted (receipt no. 3648017). The original supply plan was approved on December 30, 2002 and the SWSP was most recently renewed on December 14, 2009. Plan Operation This plan seeks to replace depletions resulting from mining at the NCCI Pit #1 ("NCCI Pit"- WDID 0203016). In 2011, the mining operation will encompass multiple ponds and ditches as shown in Figure 2, including process ponds, a sedimentation pond, dewatering ditches, and recharge ditches. The total exposed water surface of these features at the site will be 9.75 acres. During the period of this SWSP, depletions at the site will result from evaporation, water lost in mined product, and dust control. The Applicant does not anticipate using any water for the production of concrete and asphalt during the requested plan period. The lagged depletions will be replaced using fully consumable effluent leased from the City of Thornton ("Thornton"). 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. The DRMS letter identifies four approaches to satisfy this requirement. In accordance with approach no. 3, you have indicated that a bond has been obtained for $947,881 that can cover the cost of lining the NCCI Pit #1 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 http://water.state.co.us