{"data":{"id":"us/40-cfr-471.102","jurisdiction":"us","citation":"40 CFR 471.102","heading":"Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).","body":"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):\n(a) Metal powder production atomization wastewater.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder wet atomized\nCopper 9.58 5.04\nCyanide 1.46 0.605\nLead 2.12 1.01\n(b) Sizing spent emulsions.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) or powder sized\nCopper 0.028 0.015\nCyanide 0.004 0.002\nLead 0.006 0.003\n(c) Oil-resin impregnation wastewater—subpart J—BAT. There shall be no discharge of process wastewater pollutants.\n(d) Steam treatment wet air pollution control scrubber blowdown.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder metallurgy parts steam treated\nCopper 1.51 0.792\nCyanide 0.230 0.095\nLead 0.333 0.159\n(e) Tumbling, burnishing and cleaning wastewater.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) or powder metallurgy parts tumbled, burnished, or cleaned\nCopper 8.36 4.40\nCyanide 1.28 0.528\nLead 1.850 0.880\n(f) Sawing or grinding spent neat oils—subpart J—BAT. There shall be no discharge of process wastewater pollutants.\n(g) Sawing or grinding spent emulsions.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with emulsions\nCopper 0.0035 0.018\nCyanide 0.005 0.002\nLead 0.008 0.004\n(h) Sawing or grinding contact cooling water.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder sawed or ground with contact cooling\nCopper 3.08 1.62\nCyanide 0.470 0.195\nLead 0.681 0.324\n(i) Hot pressing contact cooling water.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder cooled after pressing\nCopper 16.7 8.80\nCyanide 2.55 1.06\nLead 3.70 1.760\n(j) Mixing wet air pollution control scrubber blowdown.\nSubpart J—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of powder mixed\nCopper 15.0 7.90\nCyanide 2.29 0.948\nLead 3.32 1.58\n(k) Degreasing spent solvents—subpart J—BAT. There shall be no discharge of process wastewater pollutants.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 471—NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY","Subpart J—Metals Powders Subcategory"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"9af2e9103b2a5d619d049fae313b3d177d5b0359cf0f821bf572a1ca24ad708b","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-471.101","next":"us/40-cfr-471.103"},"notice":"GroundRules: Original legal text. Not legal advice."}