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COLORADO DEPARTMENT OFPUBLICHEALTHAND ENVIRONMENT, Water Quality Control Division Rationale-Pnge 11, Permit No. CO-0000132 3. ~ecial Reports: Special reports are required in the event of n spill, bypass, or other noncompliance. Please refer to Part LE. of the permit for reporting requirements. D. Additional Terms and Conditions 1. Signatory and Certification Requirements: Signatory and certification requiremenu for reporu and submittals are discussed in Part I.E.6. of the permit. 2. Compliance Schedules: All information and written reports required by the following compliance schedules should be directed to the Permits Unitfor jinal review unless otherwise stated. a. Twelve Time Analvsis: To ensure that the water quality standards for total recoverable arsenic, dissolved cadmium, dissolved copper, total recoverable trivalent chromium, dissolved iron, total recoverable iron, dissolved manganese, total mercury, dissolved nickel, dissolved selenium, drssolved silver, and dissolved zinc are being protected, the permittee shall conduct special sampling for the appropriate metals at ou a1101 S as specked in the following paragraph and in Part LB.3. ojthepermit beginning June 1, 2004 (or upon commencement of discharge, whichever occurs first), and following once per month thereafter. Twelve consecutive monthly grab samples for total recoverable (TR) arsenic, potentially dissolved (PD) cadmium, TR trivalent chromium, PD copper, dissolved and TR iron, PD manganese, total mercury, PD nickel, PD selenium, PD silver, and PD zinc shall be collected at outfall 01 S and analyzed with al! results being submitted at the end of . the samplingpertod. A summary report in the form of a letter shall be submitted to the Permits Unit by September 30, 2005. This report shall include all individual sample results collected over the twelve month period. If sampling is incomplete, this shall be noted in the report. Ifsampling has not yet been completed by this date, this twelve time analysis requirement shall continue until twelve samples have been collected and analyzed and the resulu submitted to the Permits Unit. If the monitoring shows that there is a reasonable potential for any of these parameters to cause exceedence of the applicable water quality standards, thepermit may be reopened to add limits and/or monitoring subject to public notice requirements. Code Event PermitCitatian Due Date 50008 Submit a summary report ofall twelve monthly results with Parts I.A.4. and I.B.3. 9/30/05 cover tenet to the Permits Unit. b. Materials Containment Plar:: Previously, the permittee submited an engineered spill plan. An update to the plan is required ro be filed within 90 days ofthe permit effective dare, detailing all changes that have occurred since the original submittal If no changes have occurred a letter to this effect is required For specific requirements, refer to Part I.D.1. ojthe permit. E. Waste MinimiZa[ion/Pollution Prevention Waste minimization and pollution prevention are two terms that are becoming increasingly more common in industry today. Waste minimization includes reducing the amount of waste at the source through changes in industrial processes, and reuse and recycling of wastes for the original or some other purpose (such as materials recovery or energy production). Pollution prevention goes hand-in-hand with waste minimization. Ifthe waste is eliminated at the front of the line, it will not have to be treated at the end of the line. The direct benefits to the industry are often significant, both in terms of increased profit and in public relations. This program can affect all nreas ofprocess arsd waste control with which an industry deals. Elimination or reduction of a wastewaterpollutant can also result in a reduction in an airpollutant or a reduction in the nmount ofhazardous materials that must be hnndled or deposed. This discharge permit does not specifically dictate waste minimization conditions at this time. The Division does strongly encourage the permittee to continue working in developing and implementing a waste minimization plan. Several industries have already developed plans and found that implementation resulted in substantial savings. Both the Colorado Department of Public Health and Environment and the Environmental Protech'an Agency (EPA) have information and resources available. For mare in-depth information, please contact these agencies. Jon Kubic March 4, 2004 Gnst Revised: 4/28/2004