40 CFR 421.36: Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants introduced in secondary aluminum process wastewater into a POTW shall not exceed the following values:

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

PSNS

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

Ammonia (as N) .000 .000

(b) Subpart C—Scrap Screening and Milling.

PSNS

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

Ammonia (as N) .000 .000

(c) Subpart C—Dross Washing.

PSNS

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

Ammonia (as N) .000 .000

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

PSNS

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

Amomonia (as N) 102.800 45.180

(e) Subpart C—Delacquering Wet Air Pollution Control

PSNS

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

Ammonia (as N) 44.389 19.514

Total phenolics (4-AAP method) 1 0.004

1 At the source.

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

PSNS

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

Ammonia (as N) 177.200 77.880

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

PSNS

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

Amomonia (as N) 8.931 3.926

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

PSNS

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

Ammonia (as N) .000 .000

(i) Subpart C—Stationary Casting Contact Cooling.

PSNS

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

Ammonia (as N) .000 .000

(j) Subpart C—Shot Casting Contact Cooling.

PSNS

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

Ammonia (as N) .000 .000