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COLORADO DEPARTMENT OF HEALTH <br /> Water Quality Control Division <br /> Summary of Rationale Page 2 <br /> PERMIT NUMBER: CO-0000396 <br /> Pond Discharge Receiving <br /> Number Point Water Description <br /> 16 016 Dutch Creek Rock Tunnel Adit Pond, NW' , NE' <br /> Sec. 15, T. 10 S. , R.89 W. <br /> 17 017 tributary to No. 5 Mine Pond 5-1B, SW4, Sec. 5, <br /> Coal Creek T. 10 S:, R.89 W. <br /> 18 018 tributary to No. 1 Mine Pond 1-1 , NW4, Sec. 16, <br /> Dutch Creek T. 10 S. , R.89 W. <br /> 19 019 Roaring Fork Carbondale Train Loadout Facility, <br /> SE4, SE4, Sec. 35, T.7 S. , R.88 W. <br /> Effluent limitations for all discharges shall be based on the following: <br /> Parameter L.imitation Rationale <br /> pH (s.u. ) 6 - 9 State Effluent Standards <br /> Total Suspended Solids 35,70 Best Engineering Judgement <br /> • (mg/1 ) <br /> Total Iron (mg/1 ) 3.5,7.0 Best Engineering Judgement <br /> Oil & Grease (mg/1) 10 State Effluent Standards <br /> Total Dissolved Solids N/A Monitor for Salinity <br /> (mg/1 ) <br /> The December 28, 1979 Federal Register "Stormwater Exemption" regulations <br /> have been incorporated in the permit (See page 3, Amended) . <br /> The permit status shall be changed to an Activity Permit to facilitate future <br /> permit changes concerning additional discharge points. <br /> Pages 1 , 2, 3, 4, 5 have been amended. <br /> Pages 12A, 13A have been added. <br /> Sandy Squire <br /> September 10, 1980 <br /> 6 <br />