§ 471.11 — Effluent Limitations Representing The Degree Of Effluent Reduction Attainable By The Application Of The Best Practicable Control Technology Currently Available (bpt)

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent emulsions.

Subpart A—BPT

(b) Rolling spent soap solutions.

Subpart A—BPT

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

(d) Drawing spent emulsions.

Subpart A—BPT

(e) Drawing spent soap solutions.

Subpart A—BPT

(f) Extrusion press and solution heat treatment contact cooling water.

Subpart A—BPT

(g) Extrusion press hydraulic fluid leakage.

Subpart A—BPT

(h) Continuous strip casting contact cooling water.

Subpart A—BPT

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—BPT

(j) Shot casting contact cooling water.

Subpart A—BPT

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—BPT

(l) Alkaline cleaning spent baths.

Subpart A—BPT

(m) Alkaline cleaning rinse.

Subpart A—BPT

(n) Swaging spent emulsions.

Subpart A—BPT

(o) Degreasing spent solvents—subpart A—BPT. There shall be no discharge of process wastewater pollutants.