View all text of Subpart A [§ 444.10 - § 444.18]

§ 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

Regulated
parameter
Maximum daily Maximum monthly avg. Arsenic8472 Cadmium7126 Chromium2514 Copper2314 Lead5732 Mercury2.31.3 Silver138 Titanium6022 Zinc8254

1 Micrograms per liter (ppb)