§ 421.206 Pretreatment standards for new sources.
Current through Aug 22, 2025 · Read all of Part 421
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 secondary mercury process wastewater introduced into a POTW shall not exceed the following values:
(a) Spent battery electrolyte.
PSNS for the Secondary Mercury Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of mercury produced from batteries | ||
| Lead | 0.030 | 0.014 |
| Mercury | 0.016 | 0.006 |
(b) Acid wash and rinse water.
PSNS for the Secondary Mercury Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of mercury washed and rinsed | ||
| Lead | 0.00056 | 0.00026 |
| Mercury | 0.00030 | 0.00012 |
(c) Furnance wet air pollution control.
PSNS for the Secondary Mercury Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds of mercury processed through furnace | ||
| Lead | 0.000 | 0.000 |
| Mercury | 0.000 | 0.000 |