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M-1977-410 <br />Technical Revision 10 <br />April 26, 2022 <br />7 <br /> <br />Section 3: CDPHE Permitted Discharge Limits & Filtration Studies from <br />2020-2021 <br />GIR Discharge Permit (CO-0032751) specifies discharge limits and reporting frequency at Outfall <br />001 into Coon Track Creek are provided on Table 1 <br />Table 1 Outfall 001- Permitted Effluent <br /> <br />ICIS <br />Code Effluent Parameter <br />Effluent Limitations Maximum <br />Concentrations Monitoring Requirements <br />30-Day <br />Average 7-Day <br />Average Daily <br />Maximum Frequency Sample Type <br />50050 Effluent Flow (MGD) <br /> January 0.103 Report Continuous Recorder <br /> February 0.103 Report Continuous Recorder <br /> March 0.129 Report Continuous Recorder <br /> April 0.148 Report Continuous Recorder <br /> May 0.374 Report Continuous Recorder <br /> June 0.458 Report Continuous Recorder <br /> July 0.265 Report Continuous Recorder <br /> August 0.148 Report Continuous Recorder <br /> September 0.129 Report Continuous Recorder <br /> October 0.103 Report Continuous Recorder <br /> November 0.103 Report Continuous Recorder <br /> December 0.103 Report Continuous Recorder <br />00010 Temp Daily Max (°C) April- <br />Oct, beginning September 1, <br />2014 <br /> Report Continuous Recorder <br />00010 Temp Daily Max (°C) Nov- <br />March, beginning September <br />1, 2014 <br /> Report Continuous Recorder <br />00010 Temp MWAT (°C) April-Oct, <br />beginning September 1, 2014 <br /> Report Continuous Recorder <br />00010 Temp MWAT (°C) Nov- <br />March, beginning September <br />1, 2014 <br /> Report Continuous Recorder <br />00400 pH (su) 6.5-9 2 Days/Month Grab <br />00530 TSS, effluent (mg/l) 30 45 Monthly Grab <br />84066 Oil and Grease (visual) Report 2 Days/Month Visual <br />03582 Oil and Grease (mg/l) 10 Contingent Grab <br />00978 As, TR (µg/l) Report Monthly Grab <br />01309 As, PD (µg/l) Report Monthly Grab <br />01113 Cd, TR (µg/l) 50 300 Monthly Grab