40 CFR § 432.37
Effluent limitations attainable by the application of the best control technology for conventional pollutants (BCT)
June 9, 2020
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BCT: Limitations for BOD5, fecal coliform, TSS, and O&G are the same as the corresponding limitation specified in §432.32.