{"data":{"id":"us/40-cfr-421.304","jurisdiction":"us","citation":"40 CFR 421.304","heading":"Standards of performance for new sources.","body":"Any new source subject to this subpart shall achieve the following new source performance standards:\n(a) Chlorination off-gas wet air pollution control.\nNSPS Limitations for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of TiCl4 produced\nChromium (total) 0.346 0.140\nLead 0.262 0.122\nNickel 0.515 0.346\nTitanium 0.496 0.215\nOil and grease 9.360 9.360\nTotal suspended solids 14.040 11.230\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(b) Chlorination area-vent wet air pollution control.\nNSPS Limitations for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of TiCl4 produced\nChromium (total) 0.385 0.156\nLead 0.291 0.135\nNickel 0.572 0.385\nTitanium 0.551 0.239\nOil and grease 10.400 10.400\nTotal suspended solids 15.600 12.480\npH (1) (1)\n1 Within the range of 7.0 to 10.0 at all times.\n(c) TiCl4 handling wet air pollution control.\nNSPS Limitations for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of TiCl4 handled\nChromium (total) 0.069 0.028\nLead 0.052 0.024\nNickel 0.103 0.069\nTitanium 0.099 0.043\nOil and grease 1.870 1.870\nTotal suspended solids 2.805 2.244\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(d) Reduction area wet air pollution control.\nNSPS Limitations for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium produced\nChromium (total) 1.528 0.620\nLead 1.156 0.537\nNickel 2.272 1.528\nTitanium 2.189 0.950\nOil and grease 41.300 41.300\nTotal suspended solids 61.950 49.560\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(e) Melt cell wet air pollution control.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium produced\nChromium (total) 0.787 0.319\nLead 0.595 0.276\nNickel 1.169 0.787\nTitanium 1.127 0.489\nOil and grease 21.260 21.260\nTotal suspended solids 31.890 25.510\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(f) Chlorine liquefaction wet air pollution control.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pound per million pounds) of titanium produced\nChromium (total) 0.000 0.000\nLead 0.000 0.000\nNickel 0.000 0.000\nTitanium 0.000 0.000\nOil and grease 0.000 0.000\nTotal suspended solids 0.000 0.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(g) Sodium reduction container reconditioning wash.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pound per million pounds) of titanium produced\nChromium (total) 0.474 0.192\nLead 0.359 0.167\nNickel 0.705 0.474\nTitanium 0.679 0.295\nOil and grease 12.820 12.820\nTotal suspended solids 19.230 15.380\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(h) Chip crushing wet air pollution control.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pound per million pounds) of titanium produced\nChromium (total) 0.000 0.000\nLead 0.000 0.000\nNickel 0.000 0.000\nTitanium 0.000 0.000\nOil and grease 0.000 0.000\nTotal suspended solids 0.000 0.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(i) Acid leachate and rinse water.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pound per million pounds) of titanium produced\nChromium (total) 4.381 1.776\nLead 3.315 1.539\nNickel 6.512 4.381\nTitanium 6.275 2.723\nOil and grease 118.400 118.400\nTotal suspended solids 177.600 142.100\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(j) Sponge crushing and screening wet air pollution control.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium produced\nChromium (total) 0.000 0.000\nLead 0.000 0.000\nNickel 0.000 0.000\nTitanium 0.000 0.000\nOil and grease 0.000 0.000\nTotal suspended solids 0.000 0.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(k) Acid pickle and wash water.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium pickled\nChromium (total) 0.023 0.009\nLead 0.017 0.008\nNickel 0.034 0.023\nTitanium 0.032 0.014\nOil and grease 0.610 0.610\nTotal suspended solids 0.915 0.732\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(l) Scrap milling wet air pollution control.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of scrap milled\nChromium (total) 0.000 0.000\nLead 0.000 0.000\nNickel 0.000 0.000\nTitanium 0.000 0.000\nOil and grease 0.000 0.000\nTotal suspended solids 0.000 0.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(m) Scrap detergent wash water.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of scrap washed\nChromium (total) 6.684 2.710\nLead 5.058 2.348\nNickel 9.935 6.684\nTitanium 9.574 4.155\nOil and grease 180.600 180.600\nTotal suspended solids 271.000 216.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(n) Casting crucible wash water.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium cast\nChromium (total) 0.176 0.072\nLead 0.134 0.062\nNickel 0.262 0.176\nTitanium 0.253 0.110\nOil and grease 4.770 4.770\nTotal suspended solids 7.155 5.724\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(o) Casting contact cooling water.\nNSPS for the Primary and Secondary Titanium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of titanium cast\nChromium (total) 27.000 10.950\nLead 20.430 9.486\nNickel 40.140 27.000\nTitanium 38.680 16.780\nOil and grease 729.700 729.700\nTotal suspended solids 1,095.000 875.700\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","Subpart AB—Primary and Secondary Titanium 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":"fb145db1c6a59a9ad49bb56a87dbfa3df40b276949dd121ff422cd83f94f94dd","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.303","next":"us/40-cfr-421.305"},"notice":"GroundRules: Original legal text. Not legal advice."}