{"data":{"id":"us/40-cfr-468.11","jurisdiction":"us","citation":"40 CFR 468.11","heading":"Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).","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 practicable control technology currently available:\n(a) Subpart A—Hot Rolling Spent Lubricant BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy hot rolled\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy hot rolled\nChromium 0.045 0.018\nCopper 0.195 0.103\nLead 0.015 0.013\nNickel 0.197 0.130\nZinc 0.150 0.062\nOil and grease 2.060 1.236\nTSS 4.223 2.008\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(b) Subpart A—Cold Rolling Spent Lubricant BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy cold rolled\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy cold rolled\nChromium 0.166 0.068\nCopper 0.720 0.379\nLead 0.056 0.049\nNickel 0.727 0.481\nZinc 0.553 0.231\nOil and grease 7.580 4.548\nTSS 15.539 7.390\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(c) Subpart A—Drawing Spent Lubricant BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy drawn\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy drawn\nChromium 0.037 0.015\nCopper 0.161 0.085\nLead 0.012 0.011\nNickel 0.163 0.107\nZinc 0.124 0.051\nOil and grease 1.700 1.020\nTSS 3.485 1.657\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(d) Subpart A—Solution Heat Treatment BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy heat treated\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy heat treated\nChromium 1.118 0.457\nCopper 4.827 2.541\nLead 0.381 0.330\nNickel 4.878 3.227\nZinc 3.709 1.550\nOil and grease 50.820 30.492\nTSS 104.181 49.549\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(e) Subpart A—Extrusion Heat Treatment BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy heat treated on an extrusion press\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy heat treated on an extrusion press\nChromium 0.00088 0.00036\nCopper 0.003 0.002\nLead 0.0003 0.00026\nNickel 0.003 0.002\nZinc 0.002 0.001\nOil and grease 0.040 0.024\nTSS 0.082 0.039\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(f) Subpart A—Annealing With Water BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper annealed with water\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with water\nChromium 2.493 1.020\nCopper 10.767 5.667\nLead 0.850 0.736\nNickel 10.880 7.197\nZinc 8.273 3.456\nOil and grease 113.340 68.004\nTSS 232.347 110.506\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(g) Subpart A—Annealing With Oil BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy annealed with oil\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with oil\nChromium 0 0\nCopper 0 0\nLead 0 0\nNickel 0 0\nZinc 0 0\nOil and grease 0 0\nTSS 0 0\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(h) Subpart A—Alkaline Cleaning Rinse BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy alkaline cleaned\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy alkaline cleaned\nChromium 1.854 0.758\nCopper 8.006 4.214\nLead 0.632 0.547\nNickel 8.090 5.351\nZinc 6.152 2.570\nOil and grease 84.280 50.568\nTSS 172.774 82.173\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(i) Subpart A—Alkaline Cleaning Rinse for Forged Parts BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy forged parts alkaline cleaned\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy forged parts alkaline cleaned\nChromium 5.562 2.275\nCopper 24.019 12.642\nLead 1.896 1.643\nNickel 24.272 16.055\nZinc 18.457 7.711\nOil and grease 252.840 151.704\nTSS 518.322 246.519\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(j) Subpart A—Alkaline Cleaning Bath BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy parts alkaline cleaned\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy forged parts alkaline cleaned\nChromium 0.020 0.0084\nCopper 0.089 0.046\nLead 0.0070 0.0060\nNickel 0.089 0.059\nZinc 0.068 0.028\nOil and grease 0.93 0.56\nTSS 1.91 0.91\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(k) Subpart A—Pickling Rinse BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy pickled\nEnglish units—pounds per/1,000,000 off-pounds of copper or copper alloy pickled\nChromium 1.593 0.651\nCopper 6.881 3.622\nLead 0.543 0.470\nNickel 6.954 4.599\nZinc 5.288 2.209\nOil and grease 72.440 43.464\nTSS 148.502 70.629\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(l) Subpart A—Pickling Rinse for Forged Parts BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy forged parts pickled\nEnglish units—pounds per/1,000,000 off-pounds of copper or copper alloy forged parts pickled\nromium 1.723 0.705\nCopper 7.444 3.918\nLead 0.587 0.509\nNickel 7.522 4.975\nZinc 5.720 2.389\nOil and grease 78.360 47.016\nTSS 160.638 76.401\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(m) Subpart A—Pickling Bath BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy pickled\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy pickle\nChromium 0.051 0.020\nCopper 0.220 0.116\nLead 0.017 0.015\nNickel 0.222 0.147\nZinc 0.169 0.070\nOil and grease 2.320 1.392\nTSS 4.756 2.262\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(n) Subpart A—Pickling Fume Scrubber BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy pickled\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy pickled\nChromium 0.275 0.112\nCopper 1.189 0.626\nLead 0.093 0.081\nNickel 1.201 0.795\nZinc 0.913 0.381\nOil and grease 12.520 7.512\nTSS 25.666 12.207\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(o) Subpart A—Tumbling or Burnishing BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy tumbled or burnished\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy tumbled or burnished\nChromium 0.256 0.104\nCopper 1.107 0.583\nLead 0.087 0.075\nNickel 1.119 0.740\nZinc 0.851 0.355\nOil and grease 11.660 6.996\nTSS 23.903 11.368\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(p) Subpart A—Surface Coating BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy surface coated\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy surface coated\nChromium 0.326 0.133\nCopper 1.411 0.743\nLead 0.111 0.096\nNickel 1.426 0.943\nZinc 1.084 0.453\nOil and grease 14.680 8.916\nTSS 30.463 14.488\nph (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(q) Subpart A—Miscellaneous Waste Streams BPT Effluent Limitations.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/off-kg of copper or copper alloy formed\nEnglish units—pounds per 1,000,000 off-pounds of copper or copper alloy formed\nChromium 0.009 0.003\nCopper 0.041 0.021\nLead 0.003 0.002\nNickel 0.041 0.027\nZinc 0.031 0.013\nOil and grease 0.436 0.261\nTSS 0.893 0.425\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 468—COPPER FORMING POINT SOURCE CATEGORY","Subpart A—Copper 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":"8737f9e9d02c25a2553076b4f540fb6ceecf617a3eef5fb0343ea83101e7a11f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-468.10","next":"us/40-cfr-468.12"},"notice":"GroundRules: Original legal text. Not legal advice."}