40 CFR § 469.34
Pretreatment standards for existing sources (PSES)
June 9, 2020
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):
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Monthly average shall not exceed |
|---|---|---|
| Milligrams per liter (mg/l) | ||
| TTO1 | 1.58 | |
| Cadmium | 0.06 | 0.03 |
| Chromium | 0.65 | 0.30 |
| Lead | 1.12 | 0.41 |
| Zinc | 1.38 | 0.56 |
| Fluoride | 35.0 | 18.0 |
1Total toxic organics.
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