{"data":{"id":"us/40-cfr-464.11","jurisdiction":"us","citation":"40 CFR 464.11","heading":"Specialized definitions.","body":"For the purpose of this subpart:\n(a) Total toxic organics (TTO). TTO is a regulated parameter under PSES (§ 464.15) and PSNS (§ 464.16) for the aluminum subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:\n(1) Casting Quench (§§ 464.15(b) and 464.16(b)):\n4. benzene\n21. 2,4,6-trichlorophenol\n22. Para-chloro meta-cresol\n23. chloroform (trichloromethane)\n34. 2,4-dimethylphenol\n39. fluoranthene\n44. methylene chloride (dichloromethane)\n65. phenol\n66. bis(2-ethylhexyl) phthalate\n67. butyl benzyl phthalate\n84. pyrene\n85. tetrachloroethylene\n87. trichloroethylene\n(2) Die Casting (§ 464.15(c) and § 464.16(c)):\n1. acenaphthene\n4. benzene\n7. chlorobenzene\n11. 1,1,1-trichloroethane\n21. 2,4,6-trichlorophenol\n22. para-chloro meta-cresol\n23. chloroform (trichloromethane)\n34. 2,4-dimethylphenol\n39. fluoranthene\n44. methylene chloride (dichloromethane)\n55. naphthalene\n65. phenol\n66. bis(2-ethylhexyl) phthalate\n67. butyl benzyl phthalate\n68. di-n-butyl phthalate\n70. diethyl phthalate\n72. benzo (a)anthracene (1,2-benzanthracene)\n73. benzo (a)pyrene (3,4-benzopyrene)\n76. chrysene\n78. anthracene\n80. fluorene\n81. phenanthrene\n84. pyrene\n85. tetrachloroethylene\n86. toluene\n(3) Dust Collection Scrubber (§ 464.15(d) and § 464.16(d)):\n1. acenaphthene\n21. 2,4,6-trichlorophenol\n23. chloroform (trichloromethane)\n34. 2,4-dimethylphenol\n39. fluoranthene\n44. methylene chloride (dichloromethane)\n65. phenol\n66. bis (2-ethylhexyl) phthalate\n68. di-n-butyl phthalate\n70. diethyl phthalate\n73. benzo (a)pyrene (3,4-benzopyrene)\n84. pyrene\n(4) Investment Casting (§ 464.15(f) and § 464.16(f)):\n11. 1,1,1-trichloroethane\n23. chloroform (trichloromethane)\n44. methylene chloride (dichloromethane)\n66. bis (2-ethylhexyl) phthalate\n84. pyrene\n85. tetrachloroethylene\n87. trichloroethylene\n(5) Melting Furnace Scrubber (§ 464.15(g) and § 464.16(g)):\n1. acenaphthene\n21. 2,4,6-trichlorophenol\n23. chloroform (trichloromethane)\n34. 2,4-dimethylphenol\n39. fluoranthene\n44. methylene chloride (dichloromethane)\n65. phenol\n66. bis (2-ethylhexyl) phthalate\n68. di-n-butyl phthalate\n70. diethyl phthalate\n73. benzo (a)pyrene (3,4-benzopyrene)\n84. pyrene\n(6) Mold Cooling (§ 464.15(h) and § 464.16(h)):\n4. benzene\n21. 2,4,6-trichlorophenol\n22. para-chloro meta-cresol\n23. chloroform (trichloromethane)\n34. 2,4-dimethylphenol\n39. fluoranthene\n44. methylene chloride\n65. phenol\n66. bis(2-ethylhexyl) phthalate\n67. butyl benzyl phthalate\n84. pyrene\n85. tetrachloroethylene\n87. trichloroethylene","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":"100e3c97b7222d90a7127167fda8253dfbe7686d810fa357a5c87ace339dceee","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-464.10","next":"us/40-cfr-464.12"},"notice":"GroundRules: Original legal text. Not legal advice."}