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<br />COLORADO DEPARTMENT OF HEALTH <br />• Water Quality Control Division <br />4210 East 11th Avenue <br />Denver, Colorado 80220 <br />AMENDMENT NUMBER 2 ~(,'~ <br />SUMMARY OF RATIONALE <br />TWENTYMILE COAL COMPANY: FOIDEL CREEK MINE (FISH CREEK TIPPLE) <br />PERMIT NUMBER: CO-0036684, ROUTT COUNTY <br />I. TYPE OF PERMIT: Amendment <br />II. FACILITY INFORMATION: <br />A. Facility Type and Category 2, Subcategory 1 - Coal Mining: <br />Fee Category: Sedimentation Ponds, Surface Runoff Only: - <br />Current fee $454/year per CRS 25-8-502 <br />B. SIC No.: 1221 (Bituminous Coal Underground Mining) <br />C. Legal Contact: Greg A. Walker, Legal Counsel <br />• Cyprus Minerals Company <br />9100 East Mineral Circle <br />Englewood, CO 80155 <br />(303)+643-5215 <br />D. Facility Contact: Richard A. Mills, Supervisor Environmental <br />Affairs <br />Colorado Yampa Coal Company <br />29587 Routt County Road 027 <br />Oak Creek, CO 80467 <br />(303)+879-3800 <br />E. Facility Location: The mining operation is located in the <br />Sections 21, 22, 27, 28, 33, and 34; T6N, <br />R86W, several miles south of Milner, Colorado, <br />as shown in figure 1 of the permit. <br />F. Discharge Point: 001 - the discharge of precipitation runoff <br />from the sedimentation pond, and prior to <br />entering Fish Creek, as shown in figure 1 of <br />the permit. <br />G. Discharge Flows: 001 - Average flow range: 0.015 - 0.041 MGD <br />Maximum flow range: 0.022 - 0.125 MGD <br />The above flows were from discharge monitoring <br />• reports for the period from January 1988 <br />through June 1990. <br />