View all text of Subpart G [§ 425.70 - § 425.76]
§ 425.75 - Pretreatment standards for existing sources (PSES).
Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403, and achieve the following pretreatment standards:
Pollutant or pollutant property | PSES | Maximum for any 1 day | Maximum for monthly average | Milligrams per liter (mg/l) | Total chromium | 19 | 12 | pH | ( 1) | ( 1) |
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1 Within the range 6.0 to 10.0.