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~~C~IV ED <br />OCT 2 `J 2002 <br />Division at Minerals and Geology <br />October 26, 2002 <br />LORENCITO COAL COMPANY <br />20500 Highway 12 <br />Weston, CO 81091 <br />(719) 868-2115 <br />Colorado Department of Health <br />Water Quality Control Division <br />Permits and Enforcement Section <br />WQCD-PE-B2 <br />4300 Cherry Creek Drive South <br />Denver, CO 80246-1530 <br />RE: NPDES Discharge Monitoring Reports for Third Quarter 2002 <br />Attached are the Discharge Monitoring Reports for Third Quarter 2002 at the Lorencito <br />Mine (Permit 000045080). Sediment control facilities (sedimentation ponds) for <br />approved discharge sites 006A, 007A, 008, 009, 009A and O1 OA have been constructed. <br />No mine related disturbances have occurred in areas reporting to the other proposed <br />discharge points. <br />Discharges occurred only through dischazge point 009 during the third quarter. No <br />discharges occurred at any of the other sites. Rainfall events occurring on the evenings of <br />September 9 and September 18, 2002, resulted in sufficient flow to Pond 009 to result in <br />discharge. The Mine is requesting the application of Alternate Limitations (for events <br />less than or equal to the 10 year, 24-hour precipitation event) for Total Iron and Total <br />Suspended Solids. J.L. Torres Company monitors precipitation for the U.S. Army Corps <br />of Engineers at the Trinidad Lake Project (approximately 10 miles east of the Mine Site). <br />A copy of their precipitation record for this period is attached as supporting evidence. <br />Should you have any questions or need additional information, please let contact me. <br />Sincerely/,, <br />~~(J' <br />Ronald Thompson <br />Consultant for Lorencito Coal Company <br />Attachments <br />cc: U.S. Environmental Protection Agency <br />Water Management Division <br />Compliance Branch 8 WM-C <br />Denver Place, Suite 500 <br />999 18`" Street <br />Denver, CO 80202-2405 <br /> <br />Mr. Kent Gorham <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203-22T <br />