§ 471.24 — Pretreatment Standards For Existing Sources (pses)

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 by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in magnesium forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart B—PSES

(b) Forging spent lubricants—subpart B—PSE. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—PSES

(d) Forging equipment cleaning wastewater.

Subpart B—PSES

(e) Direct chill casting contact cooling water.

Subpart B—PSES

(f) Surface treatment spent baths.

Subpart B—PSES

(g) Surface treatment rinse.

Subpart B—PSES

(h) Sawing or grinding spent emulsions.

Subpart B—PSES

(i) Degreasing Spent Solvents—subpart B—PSES. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—PSES