40 C.F.R. § 405.52
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Cite as 40 C.F.R. § 405.52 (2026)
Except as provided in §§ 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): (a) For plants processing more than 25,000 lb/day of milk equivalent (more than 2,600 lb/day of BOD 5 input). 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 6.70 2.680 TSS 10.050 4.020 pH ( 1 ) ( 1 ) English units (pounds per 100 lb of BOD 5 input) BOD 5 0.670 0.268 TSS 1.005 .402 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0. (b) For plants processing 25,000 lb/day or less of milk equivalent (less than 2,600 lb/day of BOD 5 input). 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 8.926 4.463 TSS 13.388 6.694 pH ( 1 ) ( 1 ) English units (pounds per 100 lb of BOD 5 input) BOD 5 0.893 0.446 TSS 1.339 .669 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0. [39 FR 18597, May 28, 1974, as amended at 60 FR 33934, June 29, 1995]
- Cross-references to the CFR
- 125.30