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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br /> Rationale - Page 2. Permit No. CO-0039136 <br /> I. APPLICABLE RULES AND REGULATIONS: <br /> Table 1 below, shows State Effluent Standards (SES) , Federal Best <br /> Practicable Control Technology (BPT), Federal Best Available Technology <br /> Economically Achievable (BAT) and State Water Quality Standards (WQS) <br /> applicable to this facility. <br /> TABLE 1 <br /> Parameter SES WQS BPT BAT <br /> pH, s.u. a/ ' 6.0 - 9.0 6.5 - 9.0 6.0-9.0 N/A <br /> Oil and Grease, mg/l a/ 10.0 N/A N/A N/A <br /> Total Suspended Solids, mg/1 30/45 d/ N/A 35/70 b/ N/A <br /> Total Iron, mg/1 N/A N/A 3.5/7.0 b/ 3.5/7.0 <br /> Settleable Solids, ml/l c/ N/A N/A N/A 0.5 <br /> a/ This parameter applicable at all times <br /> b/ This limitation applicable to discharges during periods of no precipitation <br /> c/ This parameter applicable to discharges during periods of precipitation <br /> less than or equal to the 10-year, 24-hour event for this facility <br /> d/ This limitation does not apply pursuant to Section 10.1.3(3) of the State <br /> Regulations for Effluent Limitations <br />