40 CFR 421.34: Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Subpart C—Scrap Drying Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average.

mg/kg (pounds per million pounds) of aluminum scrap dried

Lead .000 .000

Zinc .000 .000

Aluminum .000 .000

Ammonia (as N) .000 .000

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times

(b) Subpart C—Scrap Screening and Milling.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of aluminum scrap screened and milled

Lead .000 .000

Zinc .000 .000

Aluminum .000 .000

Ammonia (as N) .000 .000

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(c) Subpart C—Dross Washing.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of dross washed

Lead .000 .000

Zinc .000 .000

Aluminum .000 .000

Ammonia (as N) .000 .000

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

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

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (lb/million lbs) of aluminum demagged

Lead 0.216 0.100

Zinc 0.786 0.324

Aluminum 4.711 2.090

Ammonia (as N) 102.800 45.180

Total suspended solids 11.570 9.252

Oil and grease 7.710 7.710

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

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

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of aluminum delacquered

Lead 0.093 0.043

Zinc 0.340 0.140

Aluminum 2.035 0.903

Ammonia (as N) 44.389 19.514

Total phenolics (4-AAP method) 1 0.004

Total suspended solids 4.995 3.996

Oil and grease 3.330 3.330

pH (2) (2)

1 At the source.

2 Within the range of 7.0 to 10.0 at all times.

(f) Subpart C—Direct Chill Casting Contact Cooling.

NSPS

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

Zinc 1.356 .558

Aluminum 8.120 3.602

Ammonia (as N) 177.200 77.880

Total suspended solids 19.940 15.950

Oil and grease 13.290 13.290

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

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

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (lb/million lbs) of aluminum cast

Lead 0.019 0.009

Zinc 0.068 0.028

Aluminum 0.409 0.182

Ammonia (as N) 8.931 3.926

Total suspended solids 1.005 0.804

Oil and grease 0.670 0.670

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

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

NSPS

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

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(i) Subpart C—Stationary Casting Contact Cooling.

NSPS

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

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(j) Subpart C—Shot Casting Contact Cooling.

NSPS

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

Total suspended solids .000 .000

Oil and grease .000 .000

pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.