[Code of Federal Regulations] [Title 40, Volume 29] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR467.46] [Page 640-641] 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 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)................................. ------------------------------------------------------------------------ [[Page 641]] 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]