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<br />ti <br />STATE OF COLORADO <br />P,or [lane., cvemor <br />PatO Shwayder, Acing Execuive DirecOOr <br />Dedicated to pnmeUing and improving the health and emirorvnent of the people otCobrado <br />d300 Oterrv Geek Dr. S. Laboratory Building <br />Denier, Colorado 802 2 2-1530 d210 E. 11th Avenue <br />Phme p03) 692-2000 Denier, Colorado 802 2 0-3 71 6 <br />(303) 691 X700 <br />Crystal Gtay June 22, 1995 <br />Adams County Parks Department <br />9755 Henderson Road <br />Brighton, CO 80601 <br />RE: Stormwater Permit Requirements for Mining Activities <br />I{alcevic Gulch <br />M-95-033, Adams County <br />Dear Sir or Madam: <br />We have received a copy of the reclamation permit application notice andlor an inspection report for <br />the site, from the Colorado Division of Minerals and Geology (formerly the Mined Land Reclamation <br />Division). The Water Quality Control Division administers a stormwater program, designed to <br />control stotmwater runoff from certain categories of industrial activity, including mining. Your <br />facility falls under one of these categories. Our records indicate that you have not applied for or <br />obtained a stormwater permit for the above-referenced mining operation. <br />Backeround <br />Lx 1987, the US Congress amended the Clean Water Act to expressly include stotmwater discharges <br />from mining sites (and other industries) as requiring Clean Water Act controls. In 1990, EPA issued <br />regulations that require specific mining activities to obtain permits in order to discharge stormwater <br />from their facilities. <br />The stormwater regulations apply to active and inactive mines, if runoff contacts overburden, raw <br />material, intermediate or fuushed product, or waste products, and leaves the site. <br />The Water Quality Control Division of the Colorado Department of Public Health and Environment <br />has direction and authority to administer this program in Colorado. The Division has issued a general <br />permit for Sand and Gravel Mining and Processing (and other nonmetallic minerals except fuel). <br />ADplication Requirement <br />~.~' ~ ~4y <br />„e Fb <br />• R <br />Colorado Depatunent <br />o(Public Health <br />and Environment <br />An application form for the General Permit has been enclosed. Please complete an application for the <br />site and submit it to our office by August 3, 1995. Note that the application must include notice of <br />preparation of a Stormwater Management Plan (SWMP), as described in Appendix A of the <br />application. (I'he plan itself does not need to be submitted.) <br />