2010-04-20_PERMIT FILE - C1981025A (2)

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PART I ' Page 4 of 19 • Permit No.: CO- 048233 B. TERMS AND CONDITIONS 1. Facilities Operation and Maintenance • The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee as necessary to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of backup or auxiliary facilities or similar systems when installed by the permittee only when necessary to achieve compliance with the conditions of the permit. However, the penmittee shall operate, at a minimum, one complete set of each main line unit treatment process whether or not this process is needed to achieve permit effluent compliance. Any slute produced at the wastewater treatment facility shall be disposed of in,accordance with State and Federal guidelines and regulations. 2. Compliance Schedule All information and written reports required by the following compliance schedules should be direced to the Industrial Unit of the Permits Section for final review unless otherwise stated. a. Mixing Zone Analyses Conduct remaining threshold tests for exclusion from further analysis under Mixing Zone Regulations. The second threshold test is the Application of the Mixing Zone Exclusion Tables (p. 20, Colorado Mixing Zone Implementation Guidance February 2002). Under this compliance action, the permittee will collect the necessary site- specific data, perform the required analysis, and provide a report to the Division. The report will indicate the findings ofthis . threshold test and, if not excluded, provide theworkplan for the next threshold test (i.e., determining of the size of the physical and regulatory mixing zones). Effluent Limitations Maximum Concentrations Monitorine Requirements E luentParameter 30 - Day Average * 7 ] Average * Maximum 2-Year Average Frequencv * Sample Tym Effluent Flow (MGD) 0.058 Report a Continuous Recorder Te i mP Dal Max Y (� Until 04/30/2010 'Report - ........ . _:.. . _ ._ ....... _........ _ ..... Continuous Recorder TempMWAT CC) Beginning 05/01/2010 Continuous Recorder pH (su) 2 Days/Month Grab TSS (mg/1) 30 45 Quarterly Gab Oil and Grease (nigh) 10 Quarterly Visual TDS (mg/1) Report Quarterly Grab As, T (ug /1) Report .Report 2 Days/Month ? Grab As, PD (µg/1) Report Report 2 Days/Month Grab Cri-3, TR g /1 _....).. ,...._,.._..._- __._.._...... Report ;Report 2Days/Month Grab Cu, PD (µg/1) Report Report `Report 2 Days/Month Grab Fe, Dis (µg /1) Report Report 2 Days/Month = Gab Fe, TR (µg /1) Report Report Quarterly Gab Mn,-PD 1. (µg/) .. Report Report :Report 2 Days/Month Giab _ Hg Tot (µg /1) _. Report Report 2 Days /Month ;Grab Ag; PD (µg /1) ` Report Report Report 2 Days/Month - . ' : Grab . Zri,-PD (µg /1)" ' _._ .... ... .. .... Report _ - :Report :Report 2 Days/Month ` '' ' Gab _. B, Tot 1 ..... Report Report 2 Days/Month Gab Sulfide (mg/l) Report Report 2 Days /Month Grab B. TERMS AND CONDITIONS 1. Facilities Operation and Maintenance • The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee as necessary to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of backup or auxiliary facilities or similar systems when installed by the permittee only when necessary to achieve compliance with the conditions of the permit. However, the penmittee shall operate, at a minimum, one complete set of each main line unit treatment process whether or not this process is needed to achieve permit effluent compliance. Any slute produced at the wastewater treatment facility shall be disposed of in,accordance with State and Federal guidelines and regulations. 2. Compliance Schedule All information and written reports required by the following compliance schedules should be direced to the Industrial Unit of the Permits Section for final review unless otherwise stated. a. Mixing Zone Analyses Conduct remaining threshold tests for exclusion from further analysis under Mixing Zone Regulations. The second threshold test is the Application of the Mixing Zone Exclusion Tables (p. 20, Colorado Mixing Zone Implementation Guidance February 2002). Under this compliance action, the permittee will collect the necessary site- specific data, perform the required analysis, and provide a report to the Division. The report will indicate the findings ofthis . threshold test and, if not excluded, provide theworkplan for the next threshold test (i.e., determining of the size of the physical and regulatory mixing zones).