Learn About The Law
Get help with your legal needs
FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.
Current as of January 02, 2025 | Updated by Findlaw Staff
For the purpose of this subpart:
(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§ 464.25) and PSNS (§ 464.26) for the copper subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:
(1) Casting Quench (§ 464.25(a) and § 464.26(a)):
23. chloroform (trichloromethane)
64. pentachlorophenol
66. bis(2–ethylhexyl)phthalate
71. dimethyl phthalate
(2) Dust Collection Scrubbers (§ 464.25(c) and 464.26(c)):
1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4–dimethylphenol
55. naphthalene
58. 4–nitrophenol
64. pentachlorophenol
65. phenol
66. bis(2–ethylhexyl)phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2–benzanthracene)
74. 3,4–benzofluoranthene
75. benzo(k) fluoranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. phenanthrene
84. pyrene
(3) Investment Casting (§ 464.25(e) and § 464.26(e)):
1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4–dimethylphenol
55. naphthalene
58. 4–nitrophenol
64. pentachlorophenol
65. phenol
66. bis (2–ethylhexyl)phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2–benzanthracene)
74. 3,4–benzofluoranthene
75. benzo(k) fluoranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. Phenanthrene
84. pyrene
(4) Melting Furnace Scrubber (§ 464.25(f) and § 464.26(f)):
1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4–dimethylphenol
55. naphthalene
58. 4–nitrophenol
64. pentachlorophenol
65. phenol
66. bis (2–ethylhexyl) phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2–benzanthracene)
74. 3,4–benzofluoranthene
75. benzo(k) fluoranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. phenanthrene
84. pyrene
(5) Mold Cooling (§ 464.25(g) and § 464.26(g)):
23. chloroform (trichloromethane)
64. pentachlorophenol
66. bis(2–ethylhexyl)phthalate
71. dimethyl phthalate
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.464.21 Specialized definitions - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-464-21/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw’s Learn About the Law.
Get help with your legal needs
FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.
Search our directory by legal issue
Enter information in one or both fields (Required)