40 C.F.R. § 421.33

Current through September 30, 2024
Section 421.33 - 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 C-Scrap Drying Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pound's per million pounds) of aluminum scrap dried
Lead.000.000
Zinc.000.000
Aluminum.000.000
Ammonia (as N).000.000

(b) Subpart C-Scrap Screening and Milling.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pound's per million pounds) of aluminum scrap screened and milled
Lead.000.000
Zinc.000.000
Aluminum.000.000
Ammonia (as N).000.000

(c) Subpart C-Dross Washing.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pound's per million pounds) of dross washed
Lead3.0431.413
Zinc11.0904.565
Aluminum66.41029.450
Ammonia (as N)1,449.000636.900

(d) Subpart C-Demagging Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (lb/million lbs) of aluminum demagged
Lead0.2160.100
Zinc0.7860.324
Aluminum4.7112.090
Ammonia (as N)102.80045.180

(e) Subpart C-Delacquering Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pound's per million pounds) of aluminum delacquered
Lead0.0930.043
Zinc0.3400.140
Aluminum2.0350.903
Ammonia (as N)44.38919.514
Total phenolics (4-AAP method)10.004

1 At the source.

(f) Subpart C-Direct Chill 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 aluminum cast
Lead.372.173
Zinc1.356.558
Aluminum8.1203.602
Ammonia (as N)177.20077.880

(g) Subpart C-Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (lb/million lbs) of aluminum cast
Lead0.0190.009
Zinc0.0680.028
Aluminum0.4090.182
Ammonia (as N)8.9313.926

(h) Subpart C-Ingot Conveyor Casting Contact Cooling (When Chloride Demagging Wet Air Pollution Control is Practiced On Site).

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of aluminum cast
Lead.000.000
Zinc.000.000
Aluminum.000.000
Ammonia (as N).000.000

(i) Subpart C-Stationary 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 aluminum cast
Lead.000.000
Zinc.000.000
Aluminum.000.000
Ammonia (as N).000.000

(j) Subpart C-Shot 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 aluminum cast
Lead.000.000
Zinc.000.000
Aluminum.000.000
Ammonia (as N).000.000

40 C.F.R. §421.33

49 FR 8796, Mar. 8, 1984; 49 FR 26739, June 29, 1984, as amended at 49 FR 29794, July 24, 1984; 52 FR 25559, July 7, 1987