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KATY BILISOLY
<br />APPLEGATE GROUP, INC.
<br />1490 WEST 121ST AVENUE, SUITE 100
<br />DENVER, CO 80234
<br />TRANSMISSION VIA EMAIL: KatyBilisoly@applegategroup.com
<br />RE: COMPACTED CLAY LINER APPROVAL
<br />KOBOBEL CR5 RESERVOIR (WDID 0603378)
<br />IDAHO CREEK RESOURCES PIT, DBMS M-1991-123(WDID 0606159)
<br />SE1/4 OF SECTION 20 AND THE NEI/4 OF SECTION 29, TZN, R68W, SIXTH P.M.
<br />WATER DIVISION 1, WATER DISTRICT 6
<br />Dear Ms. Bilisoly:
<br />The purpose of this letter is to approve the lining of the Kobobel CR5 Reservoir ("Reservoir"). This Reservoir is
<br />located in the SEI /4 of the SEI /4 of Section 20 and the NEI /4 of the NEI /4 of Section 29, Township 2 North,
<br />Range 68 West of the 6th P.M. and was mined under the Idaho Creek Resources Pit DRMS M-1991-123 (WDID
<br />0606159)- The Reservoir was lined with a compacted clay liner. This compacted clay liner leak test commenced
<br />on March 10, 2016 and concluded on June 8, 2016. A site inspection was performed by our office on May 4, 2016
<br />to review site conditions and discuss the leak test plan.
<br />Your report dated September 18, 2017 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 monthly basis.
<br />With this liner approval, the Kobobel CR5 Reservoir 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 allowed
<br />by statute or decree. At all other times, all inflow of water into the reservoir from any source, including
<br />precipitation and ground water inflows shall be removed to prevent illegal storage of water. Prior to ANY use of
<br />this site, the owner or operator will need to coordinate with Bob Carlson, District 6 Water Commissioner, to
<br />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: Bob Carlson, District 6 Water Commissioner, (Bob.Carlson@state.co.us
<br />Louis Flink, Diversion Records Coordinator (Louis.Flink@state.co.us)
<br />WDID File (0603378 it 0606159)
<br />Office of the State Engineer
<br />1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866- 3581
<br />r � •
<br />www.water.state.co.us t
<br />F 1876
<br />COLORADO
<br />John W. Hickenlooper
<br />Governor
<br />AV-Department
<br />Division of Water Resources
<br />of Natural Resources
<br />Robert Randalt
<br />Executive director
<br />Kevin G. Rein, P. E.
<br />Director/State Engineer
<br />September 27, 2017
<br />KATY BILISOLY
<br />APPLEGATE GROUP, INC.
<br />1490 WEST 121ST AVENUE, SUITE 100
<br />DENVER, CO 80234
<br />TRANSMISSION VIA EMAIL: KatyBilisoly@applegategroup.com
<br />RE: COMPACTED CLAY LINER APPROVAL
<br />KOBOBEL CR5 RESERVOIR (WDID 0603378)
<br />IDAHO CREEK RESOURCES PIT, DBMS M-1991-123(WDID 0606159)
<br />SE1/4 OF SECTION 20 AND THE NEI/4 OF SECTION 29, TZN, R68W, SIXTH P.M.
<br />WATER DIVISION 1, WATER DISTRICT 6
<br />Dear Ms. Bilisoly:
<br />The purpose of this letter is to approve the lining of the Kobobel CR5 Reservoir ("Reservoir"). This Reservoir is
<br />located in the SEI /4 of the SEI /4 of Section 20 and the NEI /4 of the NEI /4 of Section 29, Township 2 North,
<br />Range 68 West of the 6th P.M. and was mined under the Idaho Creek Resources Pit DRMS M-1991-123 (WDID
<br />0606159)- The Reservoir was lined with a compacted clay liner. This compacted clay liner leak test commenced
<br />on March 10, 2016 and concluded on June 8, 2016. A site inspection was performed by our office on May 4, 2016
<br />to review site conditions and discuss the leak test plan.
<br />Your report dated September 18, 2017 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 monthly basis.
<br />With this liner approval, the Kobobel CR5 Reservoir 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 allowed
<br />by statute or decree. At all other times, all inflow of water into the reservoir from any source, including
<br />precipitation and ground water inflows shall be removed to prevent illegal storage of water. Prior to ANY use of
<br />this site, the owner or operator will need to coordinate with Bob Carlson, District 6 Water Commissioner, to
<br />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: Bob Carlson, District 6 Water Commissioner, (Bob.Carlson@state.co.us
<br />Louis Flink, Diversion Records Coordinator (Louis.Flink@state.co.us)
<br />WDID File (0603378 it 0606159)
<br />Office of the State Engineer
<br />1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866- 3581
<br />r � •
<br />www.water.state.co.us t
<br />F 1876
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