U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 05, 2022

§ 467.64 - New source performance standards.

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

Subpart F Core
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps
Chromium0.1730.070
Cyanide0.0940.038
Zinc0.4760.196
Aluminum2.851.27
Oil and grease4.674.67
Suspended solids7.005.60
pH( 1)( 1)

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

Subpart F Continuous Rod Casting Spent Lubricant
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium0.00080.0003
Cyanide0.00040.0002
Zinc0.00200.0008
Aluminum0.0120.0053
Oil and grease0.0200.020
Suspended solids0.0300.024
pH( 1)( 1)

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

Subpart F Continuous Rod Casting Contact Cooling Water
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium0.0720.029
Cyanide0.0390.016
Zinc0.1980.081
Aluminum1.1840.526
Oil and grease1.9401.940
Suspended solids2.912.33
pH( 1)( 1)

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

Subpart F Solution Heat Treatment Contact Cooling Water
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium0.7540.31
Cyanide0.4080.16
Zinc2.080.86
Aluminum12.4505.52
Oil and grease20.3720.37
Suspended solids20.5624.45
pH( 1)( 1)

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

Subpart F Cleaning or Etching Bath
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.0660.027
Cyanide0.0360.015
Zinc0.1830.075
Aluminum1.0940.49
Oil and grease1.791.79
Suspended solids2.692.15
pH( 1)( 1)

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

Subpart F Cleaning or Etching Rinse
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.5150.21
Cyanide0.2780.11
Zinc1.420.59
Aluminum8.503.77
Oil and grease13.9113.91
Suspended solids20.8716.70
pH( 1)( 1)

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

Subpart F Cleaning or Etching Scrubber Liquor
Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.720.290
Cyanide0.3870.155
Zinc1.970.812
Aluminum1.185.24
Oil and grease19.3319.33
Suspended solids29.0023.20
pH( 1)( 1)

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

[48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11636, Mar. 27, 1984]