40 CFR § 445.22
Effluent limitations attainable by the application of the best conventional pollutant control technology (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 which represent the application of BCT: Limitations for BOD5, TSS and pH are the same as the corresponding limitations specified in §445.21.