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III IIIIIIIIIIIIIIII <br />999 <br />STATE OF COLORADO <br />Bill Owens, Governor <br />Jane E. Norton, Executive Director <br />Dedicated to protecting and improving [he health and environment o(the people of Colorado <br />4300 Cherry Creek Dr. S. Laboratory and Radiation Services Division <br />Denver, Colorado 00246-1530 0100 Lowry Blvd. <br />Phone 1303) 692-2000 Denver CO 00220-6928 <br />Located in Glendale, Colorado 1303) 692-7090 <br />http://wsvw.cdphe.state.co. us <br />Water Quality Connol Division <br />WQCD-P-B2 <br />(303) 692-3500 FAX (303) 782-0390 <br />January 25, 1999 <br />Joe Shoemaker <br />Environmental Specialist <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, CO 80467 <br />RE: Chemical Usage <br />Twentymile Coal Co. <br />CDPS Permit No. CO-0042161 <br />Routt County <br />Dear Mr. Shoemaker: <br />RECEIVE® <br />JAN 27 1999 <br />-`vision of Minerals 8 Geology <br />pE cp~ <br />Nei 4~ <br />r <br />~l876 ~ <br />Colorado Department <br />of Public Health <br />and Environment <br />The Division has received your January 11, 1999, letter in which your request authorization for use of sodium <br />hydroxide and sulfuric acid solutions in the treatment of Fish Creek Borehole mine water to be discharged <br />through outfall 001 of this permit. <br />These are common solutions that, if utilized in a proper manner at appropriate concentrations, would not be <br />expected to result in discernable impact on discharges to state waters nor would they be expected to cause any <br />violations of permit limitations. On this basis, we will approve these two chemicals at application rates <br />recommended by the manufacturer for use in waters that will or may be discharged to state waters. <br />As this is expected to be a short-term project, we request that, upon conclusion, you submit a letter <br />summarizing the project and its results. <br />Please contact me at (303) 692-3605 if you have questions. <br />Sincerel <br />~~~~ <br />Jon C. Kubic <br />Environmental Protection Specialist <br />Permits Unit, Water Quality Protection Section <br />xc: MS-3 File <br />EPA Technical Enforcement Program (SENF-T) <br />Local Health Depattment <br />]im Chubrilo, Tech Services, WQCD <br />Ken[ Gorham, Coal Section, CO Division of Minerals & Geology <br />