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OF CO <br /> -o DEPARTMENT OF NATURAL RESOURCES <br /> DIVISION OF WATER RESOURCES <br /> John W.Hickenlooper <br /> !$7 Governor <br /> - Mike King <br /> Executive Director <br /> January 27, 2014 Dick Wolfe,P.E. <br /> Director/State Engineer <br /> Gary Linden <br /> Tetra Tech <br /> Transmission via email: aary.linden(cD-tetratech.com <br /> RE: SLURRY WALL LINER APPROVAL <br /> Treiber A Pond (WDID 0303323) <br /> Treiber Lakes, DRMS M-2011-049 (WDID 0303042) <br /> SW1/4 Section 33, T8N R69W, WATER DIVISION 1, WATER DISTRICT 3 <br /> Dear Mr.Linden: <br /> The purpose of this letter is to approve the lining of the Treiber A Pond. This reservoir is located <br /> primarily in the NW%of the SWY/4 of Section 33, Township 8 North, Range 69 West of the 6"' P.M. and <br /> is a part of the Treiber Lakes gravel pit (DRMS M-2011-049). This slurry wall liner leak test <br /> commenced September 30, 2013 and concluded on December 31, 2013. A site inspection was <br /> performed by our office on October 18, 2013 to review site conditions and the leak test plan. <br /> Your report dated January 2014 provides the liner summary and leak test result. The test data <br /> provided indicates that the reservoir has been lined to the design standard referenced in the <br /> August 1999 State Engineer Guidelines for Lining Criteria for Gravel Pits (1999 SEO Guidelines). <br /> Meeting the design standard requires that during reservoir operations all water inflows and <br /> outflows for the liner perimeter enclosed area be accounted for on a monthly basis. <br /> With this liner approval, the Treiber A Pond is now classified as a lined reservoir in accordance with <br /> the 1999 SEO Guidelines. Water shall not be impounded in the reservoir except pursuant to lawful <br /> diversions allowed by statute or decree. At all other times, all inflow of water into the reservoir from <br /> any source, including precipitation and ground water inflows shall be removed to prevent illegal <br /> storage of water. Prior to ANY use of this site, the owner or operator will need to coordinate with Mark <br /> Simpson, District 3 Water Commissioner, to review operations, measurement structures, stage- <br /> storage curves, and accounting. <br /> Please contact me at the number below if you have any questions. <br /> Sincerely, <br /> I-aLl <br /> Tracy Kosl ff, P.E. UU <br /> Water,Re urce Engineer <br /> ec: Mark Simpson, District 3 Water Commissioner(Mark.Simpson@state co.us_) <br /> Louis Flink, Diversion Records Coordinator(Louis,Flink@state.co.us) <br /> WDID File(0303042,0303323) <br /> Office of the State Engineer <br /> 1313 Sherman Street, Suite 818•Denver, CO 80111 • Phone:303-866-3581 •Fax:303-866-3589 <br /> www.water.state.co.us <br />