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i <br />Effluent Parameter <br />Effluent Flow (MGD) <br />Temp Daily Max (°C) <br />Beginning May 1, 2013 <br />Temp MWAT (°C) <br />Beginning May 1, 2013 <br />pH (su) <br />TSS (mg/t) <br />Oil and Grease (mg/t) <br />TDS (mg/1) <br />Arsenic, Tot (ug/1) <br />As, PD (µg/1) <br />Cd, PD (µg/1) <br />Cr, TR (µg/t) <br />Cr -+-3, TR (µg/1) <br />Cu, PD (µg/1) <br />Fe, TR (µg/1) <br />Pb, PD (µg/1) <br />Mn, PD (µg/1) <br />Hg, Tot (µg/1) <br />Ni, PD (µg/t) <br />Se, PD (µg/1) <br />Ag, PD (µg/1) <br />Zn, PD (µg/1) <br />Sulfide (mg/1) <br />WET, chronic <br />Pimephales Lethality <br />Ceriodaphnia Lethality <br />Pimephales Toxicity <br />Ceriodaphnia Toxicity <br />Table 4 <br />CDPHE CDPS REQUIREMENTS <br />Effluent Limitations Maximum <br />Concentrations <br />30 -Day 7 -Day Daily <br />Average Average Maximum <br />Report Report <br />35 <br />Report <br />Report <br />Report <br />Report <br />1,000 <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />6.5-9 <br />70 <br />10 <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />6,000 <br />Report <br />Report <br />Report <br />Report <br />Report <br />Report <br />Stat Diff & <br />IC25 > <br />IWC <br />Report Stat <br />Diff& IC25 <br />PART I <br />Page 4 of 24 <br />Permit No.: CO -0034142 <br />Monitoring Reauirements <br />Frequency <br />Monthly <br />Continuous <br />Continuous <br />2 Days/Month <br />2 Days/Month <br />2 Days/Month <br />Quarterly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />2 Days/Month <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Monthly <br />Annual <br />Annual <br />Annual <br />Annual <br />Sample Type <br />Instantaneous <br />Recorder <br />Recorder <br />Grab <br />Grab <br />Visual <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />3 Grabs /Test <br />3 Grabs / Test <br />3 Grabs / Test <br />3 Grabs / Test <br />ALTERNATE LIMITATIONS <br />Any discharge or increase in the volume of a discharge caused by precipitation within any 24-hour period less than or equal to <br />the 10 -year, 24-hour precipitation event (or snowmelt of equivalent volume) may comply with the following limitations <br />subject to burden of proof requirements described in Part I.B.4. <br />The following limits may be substituted for those contained in the previous table. All other parameters remain unchanged. <br />