{"data":{"id":"us/40-cfr-464.44","jurisdiction":"us","citation":"40 CFR 464.44","heading":"New source performance standards.","body":"Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm 3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.\n(a) Casting Quench Operations.\nNSPS\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) 0.0344 0.0187\nLead (T) 0.0237 0.0116\nZinc (T) 0.0339 0.0129\nOil and grease 1.34 0.446\nTSS 0.67 0.536\npH (1) (1)\n1 Within the range of 7.0 to 10.0 at all times.\nMaximum for any 1 day Maximum for monthly average Annual average 1\n(mg/l)2 (mg/l)2\nCopper (T) 0.77 0.42 0.0076\nLead (T) 0.53 0.26 0.0067\nZinc (T) 0.76 0.29 0.008\nOil and grease 30 10 0.223\nTSS 15 12 0.116\npH (3) (3) (3)\n1 kg/1,000 kkg (pounds per million pounds) of metal poured.\n2 These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.\n3 Within the range of 7.0 to 10.0 at all times.\n(b) Die Casting Operations.\nNSPS\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) 0.0046 0.0022\nZinc (T) 0.0066 0.0025\nTotal phenols 0.0074 0.0026\nOil and grease 0.259 0.0864\nTSS 0.13 0.104\npH (1) (1)\n1 Within the range of 7.0 to 10.0 at all times.\nMaximum for any 1 day Maximum for monthly average Annual average 1\n(mg/l) 2 (mg/l) 2\nCopper (T) 0.77 0.42 0.0015\nLead (T) 0.53 0.26 0.0013\nZinc (T) 0.76 0.29 0.0016\nTotal phenols 0.86 0.3 0.0017\nOil and grease 30 10 0.0432\nTSS 15 12 0.0225\npH (3) (3) (3)\n1 kg/1,000 kkg (pounds per million pounds) of metal poured.\n2 These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.\n3 Within the range of 7.0 to 10.0 at all times.\n(c) Melting Furnace Scrubber Operations.\nNSPS\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) 1.56 0.852\nLead (T) 1.07 0.527\nZinc (T) 1.54 0.588\nTotal phenols 1.74 0.608\nOil and grease 60.8 20.3\nTSS 30.4 24.3\npH (1) (1)\n1 Within the range of 7.0 to 10.0 at all times.\nMaximum for any 1 day Maximum for monthly average Annual average 1\n(mg/l)2 (mg/l)2\nCopper (T) 0.77 0.42 0.345\nLead (T) 0.53 0.26 0.304\nZinc (T) 0.76 0.29 0.365\nTotal phenols 0.86 0.3 0.406\nOil and grease 30 10 10.1\nTSS 15 12 5.27\npH (3) (3) (3)\n1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.\n2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.\n3 Within the range of 7.0 to 10.0 at all times.\n(d) Mold Cooling Operations.\nNSPS\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) 0.304 0.166\nLead (T) 0.209 0.103\nZinc (T) 0.3 0.114\nOil and grease 11.8 3.94\nTSS 5.91 4.73\npH (1) (1)\n1 Within the range of 7.0 to 10.0 at all times.\nMaximum for any 1 day Maximum for monthly average Annual average 1\n(mg/l) 2 (mg/l) 2\nCopper (T) 0.77 0.42 0.067\nLead (T) 0.53 0.26 0.0591\nZinc (T) 0.76 0.29 0.071\nOil and grease 30 10 1.97\nTSS 15 12 1.03\npH (3) (3) (3)\n1 kg/1,000 kkg (pounds per million pounds) of metal poured.\n2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.\n3 Within the range of 7.0 to 10.0 at all times.","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 D—Zinc 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":"a6e6fd95b11b0f1ff1ca584970031625d9b1a2e73d13270978eccdf1e79fe778","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-464.43","next":"us/40-cfr-464.45"},"notice":"GroundRules: Original legal text. Not legal advice."}