Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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 degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): Pollutant or pollutant property BPT limitations Maximum for any 1 day Maximum for monthly average Kg/kkg (or pounds per 1,000 lb) of raw material BOD 5 7.0 3.2 TSS 10.1 4.6 Oil and grease 3.0 1.3 Total chromium 0.18 0.07 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0. [47 FR 52870, Nov. 23, 1982; 48 FR 30117, June 30, 1983]