Laserfiche WebLink
STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 275 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832A706 <br />May 25, 2005 <br />Grant Johns <br />American Civil Constructors, Inc. <br />410 20th St., Ste. S-1 <br />Glenwood Springs, CO 81601-4272 <br />Re: 1st - 3rd quarter 2004 Sediment Pond Report Review <br />Rimrock Strip Mine (Permit No. C-89-074) <br />Dear Mr. Johns: <br />COLORADO <br />DIVISION OF <br />MINERALS <br />GEOLOGY <br />0.EC LANATION•NIN INO <br />SAi ETY•SCIENCE <br />Bill Owens <br />Governor <br />Russell George <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />The Division of Minerals and Geology has reviewed the sediment pond inspection reports for <br />the 1st through 3rd quarters of 2004 submitted by Greg Lewicki and Associates for the Rimrock <br />mine. <br />The reports comply with the requirements of Rule 4.05.6(13) for inspection of sediment ponds <br />at coal mining sites. Generally, the pond holds water only for limited periods after storm runoff <br />events. Adequate sediment and water storage capacity, spillway function, and embankment <br />stability was noted. Mr. Lewicki noted in the first quarter that a potential rodent problem on the <br />embankment did not appear to have materialized. Color photographs of the pond and <br />surrounding area were included in the third quarter report. Based on the independent <br />observations during DMG field inspections, we concur with the observations as noted. <br />We have no questions regarding these reports. Thank you for your diligence in completing <br />your monitoring requirements in accordance with the Rules governing coal mining. <br />If you have any questions, please contact me. <br />Since ely, <br />~~~'~ <br />Kent A. Gorham <br />Environmental Protection Specialist II <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />