40 CFR 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