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STATE OF COLOFADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 C O L O R A D O <br />Phone: (303) 866-3567 D t v t s'; t o N OF <br />FAX: (303) 832-8106 RECLAMATION <br /> MINING <br /> -F-- <br />Bill Ritter, )r. <br />Governor <br />May 30t1i, 2008 Harris D. Sherman <br />Executive Director <br />Matthew Hall, P.E. Ronald W. Cattany <br />Division Director <br />Aggregate Industries Natural Resource Trustee <br />West Central Region <br />1707 Cole Blvd., Suite 100 <br />Golden, Colorado 80401 <br />RE: M-1999=034, Cooley Reservoir and Fulton Wildlife Area Well and Lake Water <br />`DIMP' Sampling Protocol Approval. V"" AM I <br />Dear Mr. Hall, <br />After reviewing the water sampling protocols for the water well #32883 and Jeronimus <br />Lake and comparing it to the standard operating procedures for DIMP sampling from the <br />Tri-County Health Department, the office has approved the procedures you have <br />submitted. <br />Water monitoring shall begin immediately before de-water and extraction activities <br />begin. Measurements will be taken once a month for a year and quarterly there after. <br />Once monitoring has been completed for a year and following completion of the de- <br />watering operation, if the DIMP levels are found to be below the set threshold, you may <br />submit a technical revision to the office to discontinue the monitoring program. The <br />office will review the data collected to determine if monitoring should continue at that <br />time. <br />Sincerely, <br />Jared Ebert <br />Environmental Protection Specialist <br />Cc; Mark Molen, Molen & Associated, LLC <br />Robert N. Fleming, ADCO Consulting <br />R. Dave Brokering, Aggregate Industries <br />Tony Waldron, DRMS <br />Office of <br />Mined Land Reclamation Office of <br />Denver Grand Junction Durango Active and Inactive Mines