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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale: - Page 8. Permit No. CO-0032115. <br />VI. TERMS AND CONDITIONS OP PERMIT <br />A. Effluent Limitations <br />I.n developing suitable effluent limitations, the Division must review <br />a.ll applicable standards and regulations and apply that which is more <br />stringent. This review includes, but is not limited to, the water <br />quality standard based effluent limitations, federal guidelines and <br />standards (40 CFR Subchapter N) and State Effluent Regulations <br />(10.1.0). Such a review bas been done for this facility. The <br />following limits will apply sad are discussed below. <br />Table VI-1 - Effluent Limits - 001, 008, 010 <br />Parameter Limit <br />Flow, MGD Report a/ <br />TSS, mg/1 35/70 b/ <br />Total Iron, mg/1 3.5/7.0 Ti/ <br />pH, s.u. 6.5-9.0 c/ <br />pH, s.u. 6.5-9.5 d/ <br />Oil and Grease, mg/1 10 e/ <br />Total Dissolved Solids, mg/1 Report e/ <br />Settleable Solids, ml/1 0.5 f/ <br />Rationale <br />NA <br />BPJ of BCT* <br />Best Available Technology <br />Water Quality Standards <br />See Discussion, Section V.B <br />State Effluent Regulations <br />Salinity Regulations <br />Eff. Limits for Precip. Events <br />*Best Professional Judgment of Best Conventional Pollutant Control Technology <br />a/ 30 Day Average <br />b/ Average of daily values for'30 consecutive days/Daily maximum <br />c/ Minimum-Mazimum <br />3/ Minimtmt-Maximum. This range applicable only to discharge polar 001, during <br />the months of Juae through September. <br />e/ Daily Maximum <br />f/ Effective during periods of precipitation less than or equal to the <br />10-year, 24-hour precipitation event for this facility, subject to burden <br />of proof requirements as described in permit. <br />