Effluent limitations guidelines 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): Subpart W—Aluminum Fluoride BPT effluent limitations Pollutant or pollutant property Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per 1,000 lb) of product TSS 2.4 1.2 Fluoride (T) 1.3 0.63 Chromium (T) 0.015 0.0045 Nickel (T) 0.0079 0.0024 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0. [47 FR 28278, June 29, 1982, as amended at 47 FR 55227, Dec. 8, 1982]