§ 471.23 — New Source Performance Standards (nsps)

Any new source subject to this subpart must achieve the following new source performance standards. The mass of pollutants in the magnesium forming process wastewater shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart B—NSPS

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

(c) Forging contact cooling water.

Subpart B—NSPS

(d) Forging equipment cleaning wastewater.

Subpart B—NSPS

(e) Direct chill casting contact cooling water.

Subpart B—NSPS

(f) Surface treatment spent baths.

Subpart B—NSPS

(g) Surface treatment rinse.

Subpart B—NSPS

(h) Sawing or grinding spent emulsions.

Subpart B—NSPS

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

(j) Wet air pollution control scrubber blowdown.

Subpart B—NSPS