Effluent limitations attainable by the application of 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 must achieve the following effluent limitations representing the application of BAT: Effluent Limitations (BAT) Regulated parameter Maximum daily 1 Maximum monthly average 1 Ammonia (as N) 84.1 29.4 Acetone 0.5 0.2 4-methyl-2-pentanone 0.5 0.2 Isobutyraldehyde 1.2 0.5 n-Amyl acetate 1.3 0.5 n-Butyl acetate 1.3 0.5 Ethyl acetate 1.3 0.5 Isopropyl acetate 1.3 0.5 Methyl formate 1.3 0.5 Amyl alcohol 10.0 4.1 Ethanol 10.0 4.1 Isopropanol 3.9 1.6 Methanol 10.0 4.1 Methyl Cellosolve 100.0 40.6 Dimethyl sulfoxide 91.5 37.5 Triethyl amine 250.0 102.0 Phenol 0.05 0.02 Benzene 0.05 0.02 Toluene 0.06 0.02 Xylenes 0.03 0.01 n-Hexane 0.03 0.02 n-Heptane 0.05 0.02 Methylene chloride 0.9 0.3 Chloroform 0.02 0.13 1,2-dichloroethane 0.4 0.1 Chlorobenzene 0.15 0.06 o-Dichlorobenzene 0.15 0.06 Tetrahydrofuran 8.4 2.6 Isopropyl ether 8.4 2.6 Diethyl amine 250.0 102.0 Acetonitrile 25.0 10.2 1 mg/L (ppm). (b) The limitations for COD are the same as specified in § 439.12(c) and (d). (c) The limitations for cyanide are the same as specified in § 439.12(e), (f) and (g). [68 FR 12271, Mar. 13, 2003]