40 C.F.R. § 405.25
Standards of performance for new sources.
Cite as 40 C.F.R. § 405.25 (2026)
Effluent characteristic Effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed— Metric units (kilograms per 1,000 kg of BOD 5 input) BOD 5 0.740 0.370 TSS 0.925 .463 pH ( 1 ) ( 1 ) English units (pounds per 100 lb of BOD 5 input) BOD 5 0.074 0.037 TSS 0.093 .046 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0.