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COLORADO <br />® Division of Water Resources <br />1313 Sherman Sveet, Room 821 <br />Denver, CO 80203 <br />June 8, 2015 <br />CARIE HERBOLSHEIMER, P.E. <br />APPLEGATE GROUP, INC. <br />1490 W. 121ST AVERNUE, SUITE 100 <br />DENVER, CO 80234 <br />TRANSMISSION VIA EMAIL: Carrie HGapplegateQroup.com <br />RE: COMPACTED CLAY LINER APPROVAL <br />SERFER RESERVOIR (WDID 0303327) <br />SERFER PIT, DRMS M-2008-006 (WDID 0303028) <br />NE1/4, SECTION 24, T6N, R68W <br />WATER DIVISION 1, WATER DISTRICT 3 <br />Dear Ms. Herbotsheimer: <br />The purpose of this letter is to approve the lining of the SerFer Reservoir ("Reservoir"). The Reservoir is <br />primarily located in the N£1 /4 of Section 24, Township 6 North, Range 68 West of the 61" P.M., and is part of <br />the SerFer Gravel Pit (DRMS M-2008-006). This clay liner leak test commenced February 6, 2015 and <br />concluded on May 8, 2015. Site inspection was performed by our office on March 26, 2015 to review site <br />conditions and the leak test plan. <br />Your report dated May 20, 2015 provides the liner summary and leak test result. The test data provided <br />indicates that the reservoir has been lined to the design standard referenced in the August 1999 State <br />Engineer Guidelines for Lining Criteria for Gravel Pits (1999 SEO Guidelines). Meeting the design standard <br />requires that during reservoir operations all water inflows and outflows for the liner perimeter enclosed <br />area be accounted for on a months basis. <br />With this liner approval, the SerFer Reservoir is now classified as a tined reservoir in accordance with the <br />1999 SEO Guidelines. Water shall not be impounded in the reservoir except pursuant to lawful diversions <br />allowed by statute or decree. At all other times, all inflow of water into the reservoir from any source, <br />including precipitation and ground water inflows shalt be removed to prevent illegal storage of water. Prior <br />to ANY use of this site, the owner or operator will need to coordinate with Mark Simpson, District 3 Water <br />Commissioner, to review operations, measurement structures, stage -storage curves, and accounting. <br />Please contact me at the number below if you have any questions. <br />Sincerely, <br />loana Comaniciu, P.E. <br />Water Resource Engineer <br />ec: Mark Simpson, District 3 Water Commissioner (Mark. SimpsonCstate.co. us) <br />Louis Ftink, Diversion Records Coordinator (Louis. ftink@state.co.us) <br />WDID File (0303327 Et 0303028) <br />1313 Sherman Sheet, Room 821, Denver, CO 80203 P 303.866.3581 F 303.866.3585 www.water.State.co.LIS <br />