[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR467.15] [Page 623-625] 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. 467.15 Pretreatment standards for existing sources. Except as provided in 40 CFR 403.7 and 403.13, any existing source subject [[Page 624]] 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 ------------------------------------------------------------------------ PSES ----------------------------- 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.................................. 0.036 0.015 Cyanide................................... 0.024 0.010 Zinc...................................... 0.119 0.050 TTO....................................... 0.057 .............. Oil and grease (alternate monitoring 4.3 2.1 parameter)............................... ------------------------------------------------------------------------ Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ PSES --------------------------- 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.................................... 0.025 0.010 Cyanide..................................... 0.016 0.007 Zinc........................................ 0.081 0.034 TTO......................................... 0.038 ............ Oil and grease (alternate monitoring 2.9 1.5 parameter)................................. ------------------------------------------------------------------------ Subpart A Continuous Sheet Casting Lubricant ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off- lbs) of aluminum cast --------------- Chromium.................................... 0.00086 0.00035 Cyanide..................................... 0.00057 0.00024 Zinc........................................ 0.0029 0.0012 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.10 0.052 parameter)................................. ------------------------------------------------------------------------ Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off- lbs) of aluminum quenched --------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- 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.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES --------------------------- 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.................................... 0.61 0.25 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.03 0.85 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 73 36 parameter)................................. ------------------------------------------------------------------------ [[Page 625]] Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- 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.................................... 0.85 0.35 Cyanide..................................... 0.56 0.23 Zinc........................................ 2.82 1.18 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 100 50 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984, as amended at 53 FR 52369 and 52370, Dec. 27, 1988]