Code of Federal Regulations Title 40. Protection of Environment § 40.421.26 Pretreatment standards for new sources

Current as of January 02, 2025 | Updated by Findlaw Staff

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 in primary aluminum process wastewater introduced into a POTW shall not exceed the following values:

(a) Subpart B—Anode and Cathode Paste Plant 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 paste produced
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(b) Subpart B—Anode Contact Cooling and Briquette Quenching.

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of anodes cast
Benzo(a)pyrene	0.007	0.003
Nickel	.115	.077
Fluoride	12.440	5.518

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of anodes baked
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(d) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of cryolite recovered
Benzo(a)pyrene	1.181	0.547
Cyanide	157.600	70.060
Nickel	80.570	35.030
Fluoride	29,430.000	13,310.000

(e) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of cryolite recovered
Benzo(a)pyrene	1.181	0.547
Cyanide	157.600	70.060
Nickel	19.270	12.960
Fluoride	2,084.000	924.800

(f) Subpart B—Potline 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 produced from electrolytic reduction
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(g) Subpart B—Potroom 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 produced from electrolytic reduction
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(h) Subpart B—Potline SO₂ Emissions 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 produced from electrolytic reduction
Benzo(a)pyrene	0.045	0.021
Nickel	.738	.496
Fluoride	79.790	35.400

(i) Subpart B—Degassing 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 produced from electrolytic reduction
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(j) Subpart B—Pot Repair and Pot Soaking.

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of aluminum produced from electrolytic reduction
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

(k) Subpart B—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 product from direct chill casting
Benzo(a)pyrene	(¹)	(¹)
Nickel	.731	.492
Fluoride	79.080	35.090

¹ There shall be no discharge allowance for this pollutant.

(l) Subpart B—Continuous Rod Casting Contact Cooling.

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pound per million pounds) of aluminum product from rod casting
Benzo(a)pyrene	(¹)	(¹)
Nickel	.057	.038
Fluoride	6.188	2.746

¹ There shall be no discharge allowance for this pollutant.

(m) Subpart B—Stationary Casting or Shot Casting Contact Cooling.

PSNS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pound per million pounds) of aluminum product from stationary casting or shot casting
Benzo(a)pyrene	.000
Nickel	.000	.000
Fluoride	.000	.000

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.421.26 Pretreatment standards for new sources - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-421-26/

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