40 CFR 467.14: New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values:

Subpart A

Core With an Annealing Furnace Scrubber

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 neat oils

Chromium 0.030 0.0123

Cyanide 0.016 0.0065

Zinc 0.084 0.0343

Aluminum 0.499 0.221

Oil and grease 0.817 0.817

Suspended solids 1.225 0.980

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

Core Without an Annealing Furnace Scrubber

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 neat oils

Chromium 0.021 0.0083

Cyanide 0.011 0.0044

Zinc 0.057 0.023

Aluminum 0.338 0.150

Oil and grease 0.553 0.553

Suspended solids 0.830 0.664

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

Continuous Sheet 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 cast

Chromium 0.00073 0.00029

Cyanide 0.00039 0.00016

Zinc 0.0020 0.00082

Aluminum 0.012 0.0053

Oil and grease 0.0197 0.019

Suspended solids 0.0295 0.022

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

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

Chromium 0.76 0.31

Cyanide 0.41 0.17

Zinc 2.08 0.86

Aluminum 12.45 5.52

Oil and grease 20.37 20.37

Suspended solids 30.56 24.45

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

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

Chromium 0.066 0.027

Cyanide 0.036 0.015

Zinc 0.183 0.075

Aluminum 1.094 0.485

Oil and grease 1.79 1.79

Suspended solids 2.69 2.15

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

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

Chromium 0.52 0.21

Cyanide 0.28 0.11

Zinc 1.42 0.59

Aluminum 8.50 3.70

Oil and grease 13.91 13.91

Suspended solids 20.87 16.69

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.

Subpart A

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

Chromium 0.715 0.29

Cyanide 0.387 0.16

Zinc 1.97 0.81

Aluminum 11.81 5.24

Oil and grease 19.33 19.33

Suspended solids 29.00 23.20

pH (1) (1)

1 Within the range of 7.0 to 10 at all times.