§ 471.55 — Pretreatment Standards For New Sources (psns)

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in the refractory metals forming process wastewater shall not exceed the values set forth below:

(a) Rolling spent neat oils and graphite based lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—PSNS

(c) Drawing spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—PSNS

(f) Forging spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—PSNS

(h) Equipment cleaning wastewater.

Subpart E—PSNS

(i) Metal powder production wastewater.

Subpart E—PSNS

(j) Metal powder production floor wash wastewater—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—PSNS

(m) Surface treatment rinse.

Subpart E—PSNS

(n) Alkaline cleaning spent baths.

Subpart E—PSNS

(o) Alkaline cleaning rinse.

Subpart E—PSNS

(p) Molten salt rinse.

Subpart E—PSNS

(q) Tumbling or burnishing wastewater.

Subpart E—PSNS

(r) Sawing or grinding spent neat oils—subpart E—PSNS. There shall be no discharge or process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—PSNS

(t) Sawing or grinding contact cooling water.

Subpart E—PSNS

(u) Sawing or grinding rinse.

Subpart E—PSNS

(v) Wet air pollution control blowdown.

Subpart E—PSNS

(w) Miscellaneous wastewater source.

Subpart E—PSNS

(x) Dye penetrant testing wastewater.

Subpart E—PSNS

(y) Degreasing spend solvents—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.