40 C.F.R. § 442.21
Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
Cite as 40 C.F.R. § 442.21 (2026)
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 BPT: Table—Effluent Limitations Regulated parameter Maximum daily 1 Maximum monthly avg. 1 BOD 5 61 22 TSS 58 26 Oil and grease (HEM) 36 16 Fluoranthene 0.076 Phenanthrene 0.34 pH ( 2 ) ( 2 ) 1 Mg/L (ppm). 2 Within 6 to 9 at all times.
- Cross-references to the CFR
- 40:125.30