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PART I <br />Page 4 of 22 <br />Permit No.: CO-0001244 <br />Oiitfall nnl A <br /> Effluent Limitations Maximum Concentrations Monitorine Requirements <br /> <br />Effluent Parameter <br />30-Day <br />Average <br />7-Dav <br />Averaee <br />Daily <br />Maximum <br />2-Year <br />Averaim <br />Frequency <br />Sample Type <br />Effluent Flow (MGD) 0.288 Report Continuous Recorder <br />pH (su) 6.5-9 5 Days / Week Grab <br />COD (mg/1) 100 200 Weekly Composite <br />TSS, effluent (mg/1) 20 30 3 Days / Week Composite <br />Oil and Grease (mg/1) 10 5 Days/Week Visual <br />TDS (mg/1) Report Report Quarterly Composite <br />As, TR (µg/1) 0.02 2 Days / Month Composite <br />Cd, PD (µg/1) Report Report 2 Days / Month Composite <br />Cr+3, TR (µg/1) 50 0.75 2 Days / Month Composite <br />Cr+6, Dis (µg/1) Report Report 2 Days / Month Composite <br />Cu, PD (µg/1) 12 18 1.8 2 Days / Month Composite <br />CN, WAD (µg/1) 5 0.85 2 Days / Month Composite <br />Fe, Dis (µg/1) 300 45 2 Days / Month Composite <br />Fe, TR (µg/1) Report Report 2 Days / Month Composite <br />Mn, Dis (µg/1) 50 7.5 2 Days / Month Composite <br />Hg, Tot (µg/1) Report 2 Days / Month Composite <br />Ni, PD (µg/1) Report Report Report 2 Days / Month Composite <br />Se, PD (µg/1) Report Report Report 2 Days / Month Composite <br />Ag, PD (µg/1) 0.13 3.5 0.02 2 Days / Month Composite <br />U, TR (µg/1) 30 22 2 Days / Month Composite <br />Zn, PD (µg/1) Report Report Report 2 Days / Month Composite <br />B, Tot (mg/1) 0.75 2 Days / Month Composite <br />Chloride (mg/1) 250 54 2 Days / Month Composite <br />Fluoride (mg/1) 2 2 Days / Month Composite <br />Sulfate (mg/1) 250 131 2 Days / Month Composite <br />Sulfide (mg/1) Report Report 2 Days / Month Composite <br />Radium 226+228 pCi/l 5 2 Days / Month Composite <br />Radium 226, dis 3 10 2 Days / Month Composite <br />Radium 226, total 10 30 2 Days / Month Composite <br />Thallium (µg/1) 0.24 2 Days / Month Composite <br />Antimony (µg/1) 5.6 2 Days / Month Composite <br />WET, chronic <br />Pimephales Lethality Stat Diff & Quarterly 3 Composites / Test <br />Ceriodaphnia Lethality IC25 > IWC Quarterly 3 Composites / Test <br />Pimephales Toxicity Report Stat Quarterly 3 Composites / Test <br />Ceriodaphnia Toxicity Diff & IC25 Quarterly 3 Composites / Test