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FR. DEPARTMENT OF NATURAL RESOURCES DIVISION OF WATER RESOURCES March 9, 2015 Mr. Andy Rodriguez, P.E. Civil Resources, LLC 323 Fifth Street P.O. Box 680 Frederick, CO 80530 Re: Shores Substitute Wa9kr Supply Plan (WDID 0502522) Shores Gravel Pit, DRMS No. M- 1998- 0131(WDID 0505500) Sections 1 and 2, T2N, R68W, 6" P.M. Water Division 1, Water District 5, Weld County Approval Period: January 1, 2015 through December 31, 2015 Contact phone number for Mr. Andy Rodriguez: 303 - 833 -1416 Dear Mr. Rodriguez: John W. 1lickeriooper Governor Mike King Executive Director Dick Wolfe, P.E. Director /State Engineer RECEIVED �/ MAR 112015 DIVISION OF RECLAMATION � MINING AND SAFETY We have reviewed your letter dated December 13, 2014, requesting renewal of the above - referenced substitute water supply plan to cover depletions caused by an existing gravel mining operation, operated by Bestway Concrete Et Aggregate ( "App(icant "). The required fee of $257.00 for the renewal of this substitute water supply plan has been submitted (receipt no. 3667697C). The original plan was approved on May 21, 2001 and was most recently approved on May 18, 2014 for operations through December 31, 2014. Plan Operation This plan seeks to replace depletions resulting from mining operations at the Shores gravel pit. The site contains four slurry walled areas, designated cells A through D, as shown on the attached Figure 1. Together these four cells are planned to eventually be connected via pipelines, by others, and become Shores Lake (WDID 0503900) as adjudicated in case no. 2000CW83. Cells A, B, C, and D were initially dewatered and dry mined. A slurry wall was constructed around cells A and B and lining for these cells was approved on January 11, 2007. A slurry wall was also constructed around cell C and was approved on December 7, 2009. A slurry wall was constructed around cell D and was approved on October 8, 2013. During the period of this plan mining will occur in cell D until the end of February 2015. The Applicant amended the gravel pit permitted boundary to include an additional 30 acres known as the Burch property, which will be mined in three phases starting in March 2015. It is estimated that groundwater will be encountered at the Burch property in the dewatering trenches in May 2015. The depletions that result from mining operations at the Shores pit are evaporation from a silt pond and dewatering trenches, concrete batching, water lost with the mined product and dust suppression. The proposed replacement source is a lease with Central Colorado Water Conservancy District. Accretions from past dewatering operations and the new dewatering estimated to start in May 2015 at the Burch property are applied to this plan against the evaporation and operational depletions at the site. 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