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

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 available technology economically achievable. (a) Iron blast furnace. Subpart C Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Ammonia-N 0.00876 0.00292 Cyanide 0.00175 0.000876 Phenols (4AAP) 0.0000584 0.0000292 TRC 1 0.000146 Lead 0.000263 0.0000876 Zinc 0.000394 0.000131 1 The limitation for TRC shall be applicable only when chlorination of ironmaking wastewaters is practiced. (b) [Reserved] [47 FR 23284, May 27, 1982; 47 FR 41739, Sept. 22, 1982, as amended at 49 FR 21030, May 17, 1984; 67 FR 64266, Oct. 17, 2002]