40 C.F.R. § 421.26

Pretreatment standards for new sources.

Last amended: 2016Year: 2026Length: 662 wordsOfficial source

Cite as 40 C.F.R. § 421.26 (2026)

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 (c) Subpart B—Anode Bake 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 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 SO 2 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 [49 FR 8792, Mar. 8, 1984; 49 FR 26739, June 29, 1984, as amended at 52 FR 25559, July 7, 1987]
Cross-references to the CFR
40:403.7
40 C.F.R. § 421.26: Pretreatment standards for new sources. | Justis AI