421.26—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 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
|
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
|
mg/kg (pounds per million pounds) of anodes cast |
| Benzo(a)pyrene |
0.007 |
0.003 |
| Nickel |
.115 |
.077 |
| Fluoride |
12.440 |
5.518 |
Code of Federal Regulations
468
|
(c)
Subpart B—Anode Bake Plant Wet Air Pollution Control.
PSNS
|
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
|
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
|
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
|
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
|
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
|
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
|
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
|
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
|
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
|
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
|
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]