New source performance standards.

§ 467.24 New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The discharge of process wastewater pollutants from the core shall not exceed the values set forth below:

Subpart B

Core

Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions
Chromium0.0480.020
Cyanide0.0260.011
Zinc0.1330.055
Aluminum0.800.35
Oil and grease1.301.30
Suspended solids1.951.56
pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Subpart B

Direct Chill Casting Contact Cooling Water

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