[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR471.104] [Page 799-800] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 471--NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY--Table of Contents Subpart J--Metals Powders Subcategory Sec. 471.104 Pretreatment standards for existing sources (PSES). 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 by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in metal powders process wastewater introduced into a POTW shall not exceed the following values: (a) Metal powder production atomization wastewater. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder wet atomized -------------- Copper....................................... 9.58 5.040 Cyanide...................................... 1.46 0.605 Lead......................................... 2.12 1.01 ------------------------------------------------------------------------ (b) Sizing spent emulsions. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder sized -------------- Copper....................................... 0.028 0.015 Cyanide...................................... 0.004 0.002 Lead......................................... 0.006 0.003 ------------------------------------------------------------------------ (c) Oil-resin impregnation wastewater.--Subpart J--PSES. (d) Steam treatment wet air pollution control scrubber blowdown. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder metallurgy part steam treated --------------- Copper....................................... 1.51 0.792 Cyanide...................................... 0.230 0.095 Lead......................................... 0.333 0.159 ------------------------------------------------------------------------ [[Page 800]] (e) Tumbling, burnishing and cleaning wastewater. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder metallurgy parts tumbled, burnished, or cleaned -------------- Copper....................................... 8.36 4.40 Cyanide...................................... 1.28 0.528 Lead......................................... 1.85 0.880 ------------------------------------------------------------------------ (f) Sawing or grinding spent neat oils.--Subpart J--PSES. There shall be no discharge of process watewater pollutants. (g) Sawing or grinding spent emulsions. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with emulsions -------------- Copper........................................ 0.035 0.018 Cyanide....................................... 0.005 0.002 Lead.......................................... 0.008 0.004 ------------------------------------------------------------------------ (h) Sawing or grinding contact cooling water. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder sawed or ground with contact cooling water --------------- Copper...................................... 3.08 1.62 Cyanide..................................... 0.470 0.195 Lead........................................ 0.681 0.324 ------------------------------------------------------------------------ (i) Hot pressing contact cooling water. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder cooled after pressing --------------- Copper....................................... 16.7 8.80 Cyanide...................................... 2.55 1.06 Lead......................................... 3.70 1.76 ------------------------------------------------------------------------ (j) Mixing wet air pollution control scrubber blowdown. Subpart J--PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of powder mixed -------------- Copper....................................... 15.0 7.90 Cyanide...................................... 2.29 0.948 Lead......................................... 3.32 1.58 ------------------------------------------------------------------------ (k) Degreasing spent solvents--Subpart J--PSES. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986]