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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter N - Effluent Guidelines and Standards |
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Part 467 - Aluminum Forming Point Source Category |
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Subpart A - Rolling With Neat Oils Subcategory |
§ 467.15 - Pretreatment standards for existing sources.
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§ 467.15 Pretreatment standards for existing sources.
Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the following values:
Subpart A
Core With an Annealing Furnace Scrubber
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.036 0.015 Cyanide 0.024 0.010 Zinc 0.119 0.050 TTO 0.057 Oil and grease (alternate monitoring parameter) 4.3 2.1 Subpart A
Core Without an Annealing Furnace Scrubber
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.025 0.010 Cyanide 0.016 0.007 Zinc 0.081 0.034 TTO 0.038 Oil and grease (alternate monitoring parameter) 2.9 1.5 Subpart A
Continuous Sheet Casting Lubricant
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.00086 0.00035 Cyanide 0.00057 0.00024 Zinc 0.0029 0.0012 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.10 0.052 Subpart A
Solution Heat Treatment Contact Cooling Water
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart A
Cleaning or Etching Bath
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart A
Cleaning or Etching Rinse
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.61 0.25 Cyanide 0.41 0.17 Zinc 2.03 0.85 TTO 0.96 Oil and grease (alternate monitoring parameter) 73 36 Subpart A
Cleaning or Etching Scrubber Liquor
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.82 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984, as amended at 53 FR 52369, 52370, Dec. 27, 1988]