Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

(a) Except as provided in 40 CFR 125.30 through 125.32 any existing point source subject to this subpart and producing nickel sulfate, nickel chloride, nickel nitrate, or nickel fluoborate must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): Subpart AU—Nickel Sulfate, Nickel Chloride, Nickel Nitrate, Nickel Fluoborate Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per/1,000 lb) of product Copper (T) 0.00074 0.00024 Nickel (T) 0.00074 0.00024 (b) Except as provided in 40 CFR 125.30 through 125.32 any existing point source subject to this subpart and producing nickel carbonate must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): Subpart AU—Nickel Carbonate Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per/1,000 lb) or product Copper (T) 0.13 0.042 Nickel (T) 0.13 0.042