Title 40

SECTION 421.53

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

§ 421.53 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:

(a) Subpart E - Casting Contact Cooling.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of copper cast
Arsenic .692 .309
Copper .638 .304
Nickel .274 .184

(b) Subpart E - Anode and Cathode Rinse.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cathode copper production
Arsenic .000 .000
Copper .000 .000
Nickel .000 .000

(c) Subpart E - Spent Electrolyte.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of copper cathode production
Arsenic .068 .031
Copper .063 .030
Nickel .027 .018

(d) Subpart E - Casting Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of casting production
Arsenic .000 .000
Copper .000 .000
Nickel .000 .000

(e) Subpart E - By-Product Recovery.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing
Arsenic .000 .000
Copper .000 .000
Nickel .000 .000
[49 FR 8801, Mar. 8, 1984; 49 FR 26739, June 29, 1984, as amended at 49 FR 29795, July 24, 1984]