87.12. Discharge standards: The effluent of an advanced secondary treatment system must comply with the following maximum discharge standards:
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Parameter Standard
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CBOD5 15 mg/l
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SS 15 mg/l
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Fecal coliforms 50 000 CFU/100 ml
after reactivation
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One of the standards is exceeded where the concentration for the same parameter in 2 samples collected within a 60-day period exceeds the amount indicated above for that parameter.