40 C.F.R. § 442.35
Pretreatment standards for existing sources (PSES).
Cite as 40 C.F.R. § 442.35 (2026)
Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart must achieve the following pretreatment standards: Table—Pretreatment Standards Regulated parameter Maximum daily 1 Non-polar material (SGT-HEM) 26 Cadmium 0.020 Chromium 0.42 Copper 0.10 Lead 0.14 Mercury 0.0013 Nickel 0.58 Zinc 8.3 1 Mg/L (ppm).
- Cross-references to the CFR
- 40:403.7