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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />December 3, 2002 <br />Grant Johns <br />DIVISION OF <br />MINERALS <br />GEOLOGY <br />RECLAMATION <br />MINING•SA FETY <br />Bill Owens <br />Governor <br />Greg E. Walther <br />American Civil Constructors, InC. Executive Director <br />410 20th St., Ste. S-1 Ronald W. Canany <br />Glenwood Springs, CO 81601-4272 Acing Division Director <br />RE: Discharge Monitoring Reports <br />1st-4th Quarters 2001, 1st-3`d Quarters 2002 <br />Rimrock Coal Company, #C-89-074 <br />The Division of Minerals and Geology has reviewed the Discharge Monitoring Reports <br />for the Rimrock Strip Mine for the all off 2001 and the 1St 2"d and 3`d quarters of 2002. <br />These reports comply with the requirements of Rule 4.05.13(2)(a)(iii)(A) for submittal of <br />completed forms to meet NPDES permit requirements. The notation "No discharge" <br />agrees with the Division's observations through field inspections. However, the July <br />2002 DMG inspection revealed evidence that the pond discharged during a storm event <br />a few days prior to the inspection. Please ensure that your visits to check for pond <br />discharge meet the requirements of your Colorado Discharge permit and the discharges <br />are sampled when, and if, they occur. <br />We have no further questions at this time. Thank you for your diligence in pursuing your <br />monitoring and reporting as required. <br />Sin a fly, <br />K A. orham <br />Environmental Protection Specialist <br />CC: Dan Hernandez <br />