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DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />Bill Ritter, Jr <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Dick Wolfe, P.E. <br />Director <br />March 23, 2009 <br />Gary Linden <br />Tetra Tech RMC <br />1900 South Sunset Street, Suite 1 -F <br />Longmont, Colorado 80501 <br />Re: Stegner Pit Leak Test, 133 - 23514 -09001 <br />Section 33, Township 8 North, Range 69 West <br />Dear Gary: <br />The purpose of this letter is to approve the lining of the above referenced gravel pit. This approval <br />is based on the information you provided under cover letters dated November 26, 2008 and March <br />13, 2009 as well as the site inspection conducted on December 16, 2008. The estimated pit <br />inflows from precipitation and groundwater and outflows due to evaporation indicate that this pit <br />has been lined to the design standard referenced in the August 1999 State Engineer <br />Guidelines for Lining Criteria for Gravel Pits. Meeting the design standard requires that all <br />water inflows and outflows for this pond must be accounted for on a monthly basis. <br />Please call me if you have any questions. <br />Sincerely, <br />Jana C. Ash, P.E. <br />Water Resource Engineer <br />CC: George Varra, Water Commissioner <br />Jeff Deatherage, Denver SEO <br />Dave Nettles, Denver SEO <br />Office of the State Engineer <br />1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303 -866 -3581 • Fax: 303 - 866 -3589 <br />www.water.state.co.us <br />