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Blue Pit <br />112 Permit Amendment <br />STATE OF COLORADO <br />Bill Owens, Governor <br />Douglas H. Benevento, Acting Executive Director <br />pFeo� <br />Dedicated to protecting and improving the health and environment of the people of Colorado <br />ti <br />4300 Cherry Creek Dr. S. Laboratory and Radiation Services Division <br />Denver, Colorado 80246 -1530 8100 Lowry Blvd. <br />Phone (303) 692 -2000 Denver, Colorado 80230 -6928 <br />te7e <br />Too Line (303) 691 -7700 (303) 692 -3090 <br />Located in Glendale, Colorado <br />-- <br />Colorado Department <br />htt 1*w v.c <br />p dphestate.co.us <br />of Public Healdt <br />and Environment <br />January 8, 2003 <br />Greg Lewicki <br />Greg Lewicki and Assoc. <br />11541 Warrington Ct. <br />Parker, CO 80138 <br />RE: Need for a Stormwater Permit <br />Dear Mr. Lewicki: <br />This is in response to your letter of December 13, 2002, regarding the need for a stormwater permit and <br />Stormwater Management Plan (SWMP) for a gravel mining operation. <br />The stormwater regulations apply to mines only if runoff contacts overburden, raw material, intermediate <br />or finished product, or waste products, and has a reasonable potential of reaching state waters. If all <br />runoff from the mine site an any of the disturbed areas is contained on site, with no discharge off -site <br />expected, a stormwater permit is not required. The Clean Water Act does not establish a threshold (e.g., <br />a 100 -year storm event); the potential for any discharge is determined by the site owner /operator. If the <br />owner /operator determines that no permit is needed and so does not apply for one, keep in mind that any <br />change in this situation would require application for a stormwater permit at least 30 days prior to any <br />discharge taking place. <br />If you have any questions, please give me a call at (303) 692 -3596. <br />Sincerely, <br />Kathryn Dolan <br />Stormwater Program Coordinator <br />Permits Unit <br />WATER QUALITY CONTROL DIVISION <br />Blue Pit May 2014 G -7 <br />