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 Code of Federal Regulations (Last Updated: July 5, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter N - Effluent Guidelines and Standards
 Part 467 - Aluminum Forming Point Source Category
 Subpart A - Rolling With Neat Oils Subcategory

  § 467.14 - New source performance standards.  

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  • § 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.

    [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984]