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'.._." <br />DEPARTMENT OF N? I,1RAL 6SOURCES <br />DIVISION OF WATER RESOURCES <br />Bill Ritter, Jr. <br />Governor <br />Mike King <br />January 4, 2011 Executivebirector <br />Dick Wolfe, P.E. <br />Director/State Engineer <br />David [.:Nettles, P.E. <br />Division Engineer <br />VARRA COMPANIES <br />GARRETT VARRA <br />8120 GAGE STREET <br />FREDERICK, CO 80516 <br />RE: VON OHLEN RESERVOIR, WDID0504002, DRMS PERMIT MISS9428 <br />W % SE Y4 S31-T3N-R67W <br />WATER DIVISION 1, WATER DISTRICT 5 <br />Dear Garrett: <br />The purpose of this letter is to approve the lining of the Van Ohlen Reservoir (WDID <br />0504002) as decreed in Case No. 01 CW274. This pit is located in the WYY of the SE% of <br />Section 31, Township 3 North, Range 67 West and is a part of the Van Ohlen Project <br />(DRMS M1989-128). The compacted clay liner test commenced August 2, 2010 and <br />concluded on October 31, 2010. A site inspection was performed by our office on October <br />26, 2010 to review site conditions and the leak test plan. <br />Your report dated December 16, 2010 provides the liner summary and 90-day leak test <br />result. The test data provided indicates that the pit has been lined to the design <br />standard referenced in the August 1999 State Engineer Guidelines for Lining Criteria-for <br />Gravel Pits (1999 SEO Guidelines). Meeting the design standard requires that all water <br />inflows and outflows for the liner perimeter enclosed area must be accounted for on <br />a monthly basis. <br />With this liner approval, Van Ohlen Gravel Pit may be used to store water in accordance <br />with the 1999 SEO Guidelines. Prior to ANY use of this site, the owner or operator will <br />need to coordinate with Shera Sumerford, District 5 Water Commissioner, to review <br />operations and accounting. <br />Please contact me at the number below if you have any questions. <br />Sincerely, <br />Jonathan M. Hernandez, P.E. <br />Water Resource Engineer <br />ec: <br /> <br />Shera Sumerford, District 5 Water Commissioner <br />Joanna Williams, Denver SEO <br />Water Division 1 • Greeley <br />810 91h Street, Suite 200 • Greeley, CO 80631 • Phone: 970-352-8712 • Fax: 970-392-1816 <br />www.water.state.co.us