{"data":{"id":"us/40-cfr-471.73","jurisdiction":"us","citation":"40 CFR 471.73","heading":"New source performance standards (NSPS).","body":"Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the uranium forming process wastewater shall not exceed the following values:\n(a) Extrusion spent lubricants—subpart G—NSPS. There shall be no discharge of process wastewater pollutants.\n(b) Extrusion tool contact cooling water.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium extruded\nCadmium 0.007 0.003\nChromium 0.013 0.005\nCopper 0.044 0.021\nLead 0.010 0.005\nNickel 0.019 0.013\nFluoride 2.05 0.908\nMolybdenum 0.173 0.077\nOil and grease 0.344 0.344\nTSS 0.516 0.413\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(c) Heat treatment contact cooling water.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated\nCadmium 0.006 0.003\nChromium 0.012 0.005\nCopper 0.040 0.019\nLead 0.009 0.004\nNickel 0.017 0.012\nFluoride 1.86 0.827\nMolybdenum 0.158 0.070\nOil and grease 0.313 0.313\nTSS 0.470 0.376\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(d) Forging spent lubricants—subpart G—NSPS. There shall be no discharge of process wastewater pollutants.\n(e) Surface treatment spent baths.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium surface treated\nCadmium 0.006 0.002\nChromium 0.010 0.004\nCopper 0.035 0.017\nLead 0.008 0.004\nNickel 0.015 0.010\nFluoride 1.62 0.718\nMolybdenum 0.137 0.061\nOil and grease 0.272 0.272\nTSS 0.408 0.327\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(f) Surface treatment rinse.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium surface treated\nCadmium 0.068 0.027\nChromium 0.125 0.051\nCopper 0.432 0.206\nLead 0.095 0.044\nNickel 0.186 0.125\nFluoride 20.1 8.90\nMolybdenum 1.70 0.752\nOil and grease 3.37 3.37\nTSS 5.06 4.05\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(g) Wet air pollution control scrubber blowdown.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium surface treated\nCadmium 0.0007 0.0003\nChromium 0.001 0.0005\nCopper 0.005 0.002\nLead 0.001 0.0005\nNickel 0.002 0.001\nFluoride 0.208 0.092\nMolybdenum 0.018 0.008\nOil and grease 0.035 0.035\nTSS 0.053 0.042\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(h) Sawing or grinding spent emulsions.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions\nCadmium 0.001 0.0005\nChromium 0.002 0.0009\nCopper 0.007 0.004\nLead 0.002 0.0008\nNickel 0.003 0.002\nFluoride 0.338 0.150\nMolybdenum 0.029 0.013\nOil and grease 0.057 0.057\nTSS 0.085 0.068\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(i) Sawing or grinding contact cooling water.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling water\nCadmium 0.033 0.013\nChromium 0.061 0.025\nCopper 0.211 0.101\nLead 0.046 0.022\nNickel 0.091 0.061\nFluoride 9.82 4.36\nMolybdenum 0.830 0.368\nOil and grease 1.65 1.65\nTSS 2.48 1.98\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(j) Sawing or grinding rinse.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinsed\nCadmium 0.001 0.0004\nChromium 0.002 0.0007\nCopper 0.006 0.003\nLead 0.002 0.0006\nNickel 0.003 0.002\nFluoride 0.277 0.123\nMolybdenum 0.024 0.011\nOil and grease 0.047 0.047\nTSS 0.070 0.056\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(k) Area cleaning rinse.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium formed\nCadmium 0.009 0.004\nChromium 0.016 0.007\nCopper 0.055 0.026\nLead 0.012 0.006\nNickel 0.024 0.016\nFluoride 2.56 1.14\nMolybdenum 0.216 0.096\nOil and grease 0.429 0.429\nTSS 0.644 0.515\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(l) Drum washwater.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of uranium formed\nCadmium 0.009 0.004\nChromium 0.017 0.007\nCopper 0.057 0.027\nLead 0.013 0.006\nNickel 0.025 0.017\nFluoride 2.64 1.17\nMolybdenum 0.223 0.099\nOil and grease 0.443 0.443\nTSS 0.665 0.532\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(m) Laundry washwater.\nSubpart G—NSPS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/employee—day\nCadmium 5.24 2.10\nChromium 9.70 3.93\nCopper 33.6 16.0\nLead 7.34 3.41\nNickel 14.4 9.70\nFluoride 1,560 692\nMolybdenum 132 58.4\nOil and grease 262 262\nTSS 393 315\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(n) Degreasing spent solvents—subpart G—NSPS. There shall be no discharge of process waster 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 G—Uranium Forming 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":"caa03457c64a3cd0875414be94b874b6ca7c6b5fa1c1672e9b88632e73d34ec5","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-471.72","next":"us/40-cfr-471.74"},"notice":"GroundRules: Original legal text. Not legal advice."}