Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources (PSES):
Subpart BO—Zinc Chloride
|
Milligrams per liter (mg/l) |
| Arsenic (T) |
3.0 |
1.0 |
| Zinc (T) |
2.3 |
0.76 |
| Lead (T) |
0.18 |
0.048 |
[49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984]