[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR471.102] [Page 797-798] 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. 471.102 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): (a) Metal powder production atomization wastewater. Subpart J--BAT ------------------------------------------------------------------------ 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 5.04 Cyanide...................................... 1.46 0.605 Lead......................................... 2.12 1.01 ------------------------------------------------------------------------ (b) Sizing spent emulsions. Subpart J--BAT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) or powder sized --------------- Copper...................................... 0.028 0.015 Cyanide..................................... 0.004 0.002 Lead........................................ 0.006 0.003 ------------------------------------------------------------------------ (c) Oil-resin impregnation wastewater--Subpart J--BAT. There shall be no discharge of process wastewater pollutants. (d) Steam treatment wet air pollution control scrubber blowdown. Subpart J--BAT ------------------------------------------------------------------------ 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 steam treated --------------- Copper....................................... 1.51 0.792 Cyanide...................................... 0.230 0.095 Lead......................................... 0.333 0.159 ------------------------------------------------------------------------ (e) Tumbling, burnishing and cleaning wastewater. Subpart J--BAT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) or powder metallurgy parts tumbled, burnished, or cleaned --------------- Copper...................................... 8.36 4.40 Cyanide..................................... 1.28 0.528 Lead........................................ 1.850 0.880 ------------------------------------------------------------------------ (f) Sawing or grinding spent neat oils. Subpart J--BAT. There shall be no discharge of process wastewater pollutants. (g) Sawing or grinding spent emulsions. Subpart J--BAT ------------------------------------------------------------------------ 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..................................... 0.0035 0.018 Cyanide.................................... 0.005 0.002 Lead....................................... 0.008 0.004 ------------------------------------------------------------------------ (h) Sawing or grinding contact cooling water. Subpart J--BAT ------------------------------------------------------------------------ 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 --------------- Copper...................................... 3.08 1.62 Cyanide..................................... 0.470 0.195 Lead........................................ 0.681 0.324 ------------------------------------------------------------------------ (i) Hot pressing contact cooling water. Subpart J--BAT ------------------------------------------------------------------------ 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 1.760 ------------------------------------------------------------------------ [[Page 798]] (j) Mixing wet air pollution control scrubber blowdown. Subpart J--BAT ------------------------------------------------------------------------ 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--BAT. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986]