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DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />Mr. Andy Rodriguez, P.E. <br />.W Civil Resources, LLC <br />323 Fifth Street <br />P.O. Box 680 <br />Frederick, CO 80530 <br /> Bill Ritter, Jr. <br /> Governor <br />December 2, 2008 Harris D. Sherman <br /> Executive Director <br /> Dick Wolfe, P.E. <br /> Director <br />EI\/F:D <br />RE <br />EC <br />0 3 2008 <br />Division of Reclamation, <br />Mining and 'afety <br />Re: Baseline Resource Aggregate Mine, Substitute Water Supply Plan (WDID 0202583) <br />Division of Reclamation, Mining and Safety File No. M-1997-058 ? <br />Section 36, T1 N, R67W, 6th P.M., Atoms Cpunty <br />Water Division 1, Water District 2 W?44 <br />Approval Period: January 1, 2009 through December 31, 2009 <br />Contact phone number for Mr. Andy Rodriguez: 303-833-1416 <br />Dear Mr. Rodriguez: <br />We have received your letter of October 15, 2008, requesting renewal of the above <br />referenced substitute water supply plan ("SWSP") to cover depletions caused by an existing <br />gravel mining operation operated by Hall Irwin ("Applicant"). The required fee of $257.00 for the <br />amendment of this substitute supply plan has been submitted (receipt no. 3634344B). The <br />original plan was approved on May 21, 2001 and it was most recently renewed on July 31, <br />2008. <br />Plan Operation <br />The Baseline Resources mining area is split into two adjacent sites. The East site is <br />encompassed by an existing slurry wall, and is known as Robert W. Walker Reservoir (WDID <br />0203358), while the West site is located outside of the wall. For 2009 all mining will occur <br />outside of the slurry wall. Operations at the site are expected to occur during nine months of <br />the year from March through November. <br />The applicant will dewater the active mining area to allow for dry mining. The dewatering <br />water will be conveyed through dewatering trenches to a 7.18 acre settling pond. <br />An alluvial well has been constructed to provide water for concrete batching and dust <br />suppression. This well is currently permitted under well permit no. 66961-F (WDID 0210141) <br />and is located outside the boundaries of the slurry wall. In addition to providing 1.66 acre-feet <br />for dust control and 11.19 acre-feet for concrete batching at this site the well will provide 1.67 <br />acre-feet of water for dust control at the adjacent Parker-Dersham Resource site. <br />4 <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