[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR467.46] [Page 642-643] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 467--ALUMINUM FORMING POINT SOURCE CATEGORY--Table of Contents Subpart D--Forging Subcategory Sec. 467.46 Pretreatment standards for new sources. Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and [[Page 643]] achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart D Core ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off- lbs) of aluminum forged --------------- Chromium.................................... 0.019 0.008 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.051 0.021 TTO......................................... 0.035 ............ Oil and grease (alternate monitoring 0.50 0.50 parameter)................................. ------------------------------------------------------------------------ Subpart D Forging Scrubber Liquor ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off- lbs) of aluminum forged --------------- Chromium.................................... 0.035 0.014 Cyanide..................................... 0.019 0.008 Zinc........................................ 0.096 0.040 TTO......................................... 0.065 ............ Oil and grease (alternate monitoring 0.95 0.95 parameter)................................. ------------------------------------------------------------------------ Subpart D Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS ------------------------- 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 0.16 Zinc.......................................... 2.08 0.86 TTO........................................... 1.41 ........... Oil and grease (alternate monitoring 20.37 20.37 parameter)................................... ------------------------------------------------------------------------ Subpart D Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- 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.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS --------------------------- 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 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 13.91 13.91 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS -------------------------- 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..................................... 0.72 0.29 Cyanide...................................... 0.39 0.16 Zinc......................................... 1.97 0.812 TTO.......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter).................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632 and 11633, Mar. 27, 1984] [[Page 644]]