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>RADO DEPARTMENT OF PUBLIC NEALTHAND ENVIRONMENT, Water Quality Control Division <br />sale -Page 3, Permit No. CO-0034142 <br />`. certified operator holding a cettfication in a class equal to or higher than the c]ass of the facility. The OperatorCertiftcadon Board is <br />thin the Colorado Department of Public Health and Environment and should be contacted at (303) 691-3550 for any questions <br />~nve fo specific requirements. The permittee employs a Class D cert~ed wastewater operator. to conform to Article 9, Title 25, <br />T KeSulations for the Certification of Water Treatment Plant and Wastewater Treatment Plant Operators. <br />PERFORMANCE HISTORY <br />A. Monitoring Data <br />1. Discharfe Monitoring Reports: Tables TV 1, 1V-2, IV-3 and IV-4 summarize the e~Jluent data reported orv the monthly <br />Discharge Monitoring Reports (DNB's) for Outfalls 003, 004, 012, 013, and 014 respectively, from the RA.GECfaciliry from <br />October 1995 to September 2001. In the monthly submirtedDA91's, thepermittee indicated less than two discharges occurred <br />during this period from Outfalls 004, 007, 009, 011, 012, 013, 014, 015, 016, 017, 018, 019, 020, and 021..These discharges <br />consist of surface runoffframpost mining areas. <br />Table TV 1=Self-Monitorinf Results <br />Flow, MGD <br />Oil &,Grease, mg/1 <br />TSS, mgR <br />pH, s.u. <br />TDS, mgR <br />~~' m~! <br />tnc (TR), mg/1 <br />WholeE,QluentToxiciry, Chronic <br />Ceriodaphnia spp. <br />Fathead minnows <br />32 1.30/0.05/4.13 4.03 I <br />32 0.0/0.0/0.0 1 Q ~Q. _, <br />32 8.66/6/48 35/70 0 <br />31 -/7.0/8.45 4.0.9.0 0 <br />24 377/810/943 - Report NA <br />31 0.19/0.11/1.7 1.0 ! <br />31 0.01/0.01/0.04 0.23/0.46 0 <br />14 <br />!4 <br />TablelY--?-- <br />1 occurrences Statistical Diff. <br />0 occurrences 011.5%) <br />2 <br />0 <br />Flow, MGD 32 0.057/0.01/9.13 4.03 0 <br />Oil & Grease, mgR _ 32 0.0/0.0/0.0 10- 0 <br />TSS, mg/1 3Z- 7.13/0.0/30 35!10 0 <br />pH, s.u. 31 -/7.5/8.8 6.0-9.0 0 <br />TDS, mg/! 32 1010/910/1410 Report NA <br />Iron (TR), mgR 3? - 0.11/0.06/1.21 1.0 1 <br />Zinc (I'R), mgR 32 0.02/0.0/0.20 <br />,„ 0.13/O.d6 0 <br /> p <br />Whole E,fJluent Toxicity, Chronic Statisricalbiff, <br />r:odaphnia spp. !4 0 occurrences (<11.5%) 0 <br />~thead minnows 14 3 occurrences 3 <br /> <br />