40 CFR 444.16 - Pretreatment standards for existing sources (PSES).

§ 444.16 Pretreatment standards for existing sources (PSES).
Except as provided in 40 CFR 403.7 and 403.13, any source that introduces wastewater pollutants into a POTW must comply with part 403 and achieve the following pretreatment standards:
Pretreatment Standards 1
Regulatedparameter Maximum daily Maximum monthly avg.
1 Micrograms per liter (ppb)
Arsenic 84 72
Cadmium 71 26
Chromium 25 14
Copper 23 14
Lead 57 32
Mercury 2.3 1.3
Silver 13 8
Titanium 60 22
Zinc 82 54

Title 40 published on 2013-07-01

no entries appear in the Federal Register after this date.

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