40 CFR 420.135 - Pretreatment standards for existing sources (PSES).

§ 420.135 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 pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and must achieve the following pretreatment standards for existing sources (PSES):

(a)Direct-reduced iron. [Reserved]

(b)Forging operations. [Reserved]

(c)Briquetting. There shall be no discharge of process wastewater pollutants to POTWs.

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United States Code