{"data":{"id":"us/40-cfr-464.16","jurisdiction":"us","citation":"40 CFR 464.16","heading":"Pretreatment standards for new sources.","body":"Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.\n(a) Casting Cleaning Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/1,000 kkg (pounds per million pounds) of metal poured\nCopper (T) 0.0771 0.0421\nLead (T) 0.0791 0.039\nZinc (T) 0.114 0.0431\n(b) Casting Quench Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/1,000 kkg (pounds per million pounds) of metal poured\nCopper (T) 0.0093 0.0051\nLead (T) 0.0096 0.0047\nZinc (T) 0.0138 0.0052\nTTO 0.029 0.0095\nOil and grease (for alternate monitoring) 0.363 0.121\n(c) Die Casting Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/1,000 kkg (pounds per million pounds) of metal poured\nCopper (T) 0.0066 0.0036\nLead (T) 0.0068 0.0034\nZinc (T) 0.0098 0.0037\nTotal Phenols 0.0074 0.0026\nTTO 0.0308 0.01\nOil and grease (for alternate monitoring) 0.259 0.0864\n(d) Dust Collection Scrubber Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed\nCopper (T) 0.231 0.126\nLead (T) 0.237 0.117\nZinc (T) 0.343 0.129\nTotal Phenols 0.258 0.09\nTTO 0.613 0.2\nOil and grease (for alternate monitoring) 9.01 3.0\n(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.\n(f) Investment Casting.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/1,000 kkg (pounds per million pounds) of metal poured\nCopper (T) 8.48 4.63\nLead (T) 8.7 4.3\nZinc (T) 12.6 4.74\nTTO 18.1 5.91\nOil and grease (for alternate monitoring) 330 110\n(g) Melting Furnace Scrubber Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed\nCopper (T) 3.01 1.64\nLead (T) 3.09 1.52\nZinc (T) 4.45 1.68\nTotal Phenols 3.36 1.17\nTTO 7.97 2.6\nOil and grease (for alternate monitoring) 117 39.1\n(h) Mold Cooling Operations.\nPSNS\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nkg/1,000 kkg (pounds per million pounds) of metal poured\nCopper (T) 0.297 0.162\nLead (T) 0.305 0.151\nZinc (T) 0.44 0.166\nTTO 0.935 0.304\nOil and grease (for alternate monitoring) 11.6 3.86","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY","Subpart A—Aluminum Casting 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":"009a43f2187ed1b818ebce9a00c7bda26d7e9788f052263efb3ab9047010f4fc","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-464.15","next":"us/40-cfr-464.17"},"notice":"GroundRules: Original legal text. Not legal advice."}