Title 40
SECTION 439.46
439.46 Pretreatment standards for existing sources (PSES).
§ 439.46 Pretreatment standards for existing sources (PSES).Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart must achieve the following standards by September 21, 2001:
Pretreatment Standards (PSES)
| Regulated parameter | Maximum daily 1 | Maximum monthly average 1 |
|---|---|---|
| Acetone | 20.7 | 8.2 |
| n-Amyl acetate | 20.7 | 8.2 |
| Ethyl acetate | 20.7 | 8.2 |
| Isopropyl acetate | 20.7 | 8.2 |
| Methylene chloride | 3.0 | 0.7 |
1 mg/L (ppm).