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COLORADO DEPARTMENT OF PUBLIC HEALTHAND ENVIRONMENT, Water Qualiry Control Division <br />Rationale -Page 11, Permit No. 00.0032115 <br />1. S~atorv and Certification Requirements: Signatory and certification requirements jor reports and submittals are <br />discussed in Partl.E.ti. of the permit. <br />2. Comaliance Schedules: All information and written reports required by the following compliance schedules should be <br />directed to the Permits Unitforfinal review unless otherwise stated. <br />a. Twelve Time Analvsis: To ensure that the water quality standards for total recoverable (TR) arsenic, TR cadmium, <br />TR copper, total trivalent chromium, TR lead, TR selenium, and TR zinc are being protected, the permttree shall <br />conduct special e/jluent samplingfor the appropriate metals at outfalls 011, 017, 019, 020, 011, 023, as shown in <br />Table VI-8 and in Part I.B3. of the permit beginning July 1.2004. and following once per month thereafter. <br />Twelve consecutive monthly grab samples shall be collected at each applicable outfall and analyzed with all raw <br />data being submitted at the end of the sampling period. A summary report in the form of a lever shall be submined <br />to the Permits Unit by Seotember 30.2005. This report shall inc&rde al! sample results collected over the twelve <br />month period. If a series of sampling is incomplete jor one or more outfalls, this shall be noted in the report. For <br />those outfalls for which sampling has not yet been completed by this date, the twelve time analysis requirement shall <br />continue until twelve samples have been collected and analyzed and the results submined to the Permits Unit. The <br />Division acknowledges that some outfalls normally do not discharge. Therefore, if discharge commences at any of <br />these outfalls for a short period, this special monitoring shall occur during that period. If when the discharge <br />ceases, discharge is not expected to occur again for the foreseeable furore, the permittee shall contact the Permits <br />Unit to discuss whether the data collected to date should be submined at that time. If the permittee has a recent <br />data base (1998 or more recent) that includes these parameters for one or more ourfalls, these previous data may be <br />included in the data set(s) as applicable. All raw data shall be submitted, notjust summaries. <br />If the monitoring shows that there is a reasonable potential for any of these parameters to cause exceedence of the <br />applicable water quality standards, she permit may be reopened to add limits and/or monitoring subject to public <br />notice requirements. <br />Code Event PermitCitatian Due Date <br />50008 Submit a summary report of all twelve monthly results Parts I.A.S. and I.8.3. 9/30/05 <br />with cover lever to the Permits Unit, <br />b. Materials Containment Plan: Previously, the permiuee submined an engineered spill plan. An update to the plan is <br />required to be filed within 90 days of the permit effective date, detailing all changes that have occurred since the <br />original submittal. If no changes have occurred, a lever to this effect is required. For speck requirements, refer <br />to Part I.D.1. of the permit. <br />E. Waste MinimizWiot/Pollution Prevention <br />Waste minimization and pollution prevention are two terms that are becoming increasingly more rnmmon in industry today. <br />Waste minimization includes reducing the amount ofwaste at the source through changes in industrial processes, and reuse <br />and recycling ojwastes for the original or some other purpose (such as materials recovery or energy production). Pollution <br />prevention goes hand-in-hand with waste minimization. If the waste is eliminated at the front of the line, it will not have to <br />be treated at the end of the line. The direct benefits to the industry are often sign ficant, both in terms of increased profit and <br />in public rela8ons. This program can affect al! areas ofprocess and waste control with which an industry deals. <br />Elimination or reduction of a wastewater pollutant can also result in a reduction in an air pollutant or a reduction in the <br />amount ofhazardous materials that must be handled or disposed. <br />This discharge permit does nor specifically dictate waste minimization conditions at this time. The Division does strongly <br />encourage the permittee to continue working in developing and implementing a waste minimization plan. Several industries <br />have already developed plans andfound that implementation resulted in subseantial savings. Both the Colorado Department <br />of Public Health and Environment and the Environmental Protection Agency (EPA) have information and resources <br />available. For more in-depth information, please contact these agencies. <br />Jon Kubic <br />February 26, 2004 <br />revised March l7. 2004 <br />cast aevrsed: snznooa <br />