[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR467.14] [Page 622-623] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 467--ALUMINUM FORMING POINT SOURCE CATEGORY--Table of Contents Subpart A--Rolling With Neat Oils Subcategory Sec. 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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. [[Page 623]] Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day 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 and 11632, Mar. 27, 1984]