§ 471.44 — 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, 1985 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in precious metals forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—PSES

(c) Drawing spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—PSES

(e) Drawing spent soap solutions.

Subpart D—PSES

(f) Metal powder production atomization wastewater.

Subpart D—PSES

(g) Heat treatment contact cooling water.

Subpart D—PSES

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—PSES

(i) Stationary casting contact cooling water—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—PSES

(k) Shot casting contact cooling water.

Subpart D—PSES

(l) Wet air pollution control scrubber blowdown—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—PSES

(n) Surface treatment spent baths.

Subpart D—PSES

(o) Surface treatment rinse.

Subpart D—PSES

(p) Alkaline cleaning spent baths.

Subpart D—PSES

(q) Alkaline cleaning rinse.

Subpart D—PSES

(r) Alkaline cleaning prebonding wastewater.

Subpart D—PSES

(s) Tumbling or burnishing wastewater.

Subpart D—PSES

(t) Sawing or grinding spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—PSES

(v) Degreasing spent solvents—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.