40 C.F.R. § 426.53
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Cite as 40 C.F.R. § 426.53 (2026)
The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of this subpart after application of the best available technology economically achievable: Effluent characteristic Effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed— Metric units (g/kg of product) Phosphorus 0.05 .05 English units (lb/ton of product) Phosphorus 0.0001 .0001 [39 FR 5714, Feb. 14, 1974, as amended at 44 FR 50746, Aug. 29, 1979]