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AVCOLORADO <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Street, Room 821 <br />Denver, CO 80203 <br />March 6, 2015 <br />DEREK FOSTER <br />DEERE i3 AULT CONSULTANTS, INC. <br />600 S. AIRPORT ROAD, BUILDING A, SUITE 205 <br />LONGMONT, CO 80503 <br />TRANSMISSION VIA EMAIL: Derek. FosterGdeereault.com <br />RE: CLAY LINER APPROVAL <br />THREE BELLS VELDMAN PROPERTY (RIVER BLUFFS LAKE) (WDID 0303324) <br />THREE BELLS PIT, DRMS M-1979-191 (WDID 0303023) <br />SECTION 13, T61N, R68W <br />WATER DIVISION 1, WATER DISTRICT 3 <br />Dear Mr. Foster: <br />The purpose of this letter is to approve the lining of the Three Bells Veldman Property (River Bluffs Lake). <br />The River Bluffs Lake is primarily located in the W1 /2 of the NE1 /4 and the E1 /2 of the NW1 /4 of Section 13, <br />Township 6 North, Range 68 West of the 6th P.M., and is part of the Three Bells gravel pit (DRMS M-1979-191). <br />This clay liner leak test commenced November 25, 2014 and concluded on February 22, 2015. Site inspection <br />was performed by our office on January 8, 2015 to review site conditions and the leak test plan. <br />Your report dated March 2, 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 month! basis. <br />With this liner approval, the River Bluffs Lake is now classified as a lined 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 shall 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 />Sin erely, <br />loana Comaniciu, P.E. <br />Water Resource Engineer <br />ec: Mark Simpson, District 3 Water Commissioner (Mark.SimpsonCstate.co. us) <br />Louis Flink, Diversion Records Coordinator (Louis.flinkCstate.co. us) <br />WDID File (0303324 Et 0303023) <br />ne�rvt�. <br />1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581 F 303.866.3585 www.water.state.Co.us <br />