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-i? X73©® <br />STATE OF COLORADO <br />Bill Ritter, Jr., Governor <br />Martha E. Rudolph, Executive Director <br />Dedicated to protecting and improving the health and environment of the people of Colorado <br />4300 Cherry Creek Dr. S. <br />Denver, Colorado 80246-1530 <br />Phone (303) 692-2000 <br />TDD Line (303) 691-7700 <br />Located in Glendale, Colorado <br />http://www.cdphe.state.co.us <br />APP 15 2010 <br />Mr. Randy Whicker: <br />_-Cotter Canon City Milling Facility <br />P. O. Box 1750 <br />Canon City, Colorado 81215-1750 <br />rECEWED <br />P-OR 1? 2010 <br />Division of Reclamation, <br />Mining & Safety <br />-C <br />O,p <br />0 <br />==??p <br />* /876 <br />Colorado Department <br />of Public Health <br />and Environment <br />RE: Schwartzwalder Mine 2009 Semiannual/Annual Radiological Monitoring, and Effluent Report <br />Dear Mr. Whicker: <br />A report entitled Schwartzwalder Mine RML 369-03 2009 Semiannual/Annual Radiological Monitoring and <br />Effluent Report dated March 30, 2010 (the Report) was received by the Colorado Department of Public Health <br />and Environment (the Department) on March 30, 2010. This report has been reviewed. <br />The Department accepts the Report. The Department has some comments concerning the data contained in the <br />Report. First, the Thermoluminescent dosimeter measurements point out that gamma radiation in the vicinity of <br />the gate is significantly higher than the other measured values. What is the cause of this elevated measurement <br />and what action will be taken to reduce potential exposure? <br />Second, the surface water standard for uranium is 30. micrograms per liter in this stream segment, unless modified <br />by permit (5 CCR 1002-38). If you have any questions or would like to set up a meeting, please call Edgar <br />Ethington at (303) 692-3438, me at (303) 692-3371. <br />.Sincerely, <br />J es H. Grice III, Licensing Lead <br />dioactive Materials Unit <br />Hazardous Materials and Waste Management Division <br />Laboratory Services Division <br />8100 Lowry Blvd. <br />Denver, Colorado 80230-6928 <br />(303) 692-3090 <br />CC Edgar Ethington; CDPHE <br />avid Bird; DRMS <br />File 369-03; 3.2