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40 CFR §464.11

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For the purpose of this subpart:
  1. (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:
    1. (1)Casting Quench (§§ 464.15(b) and 464.16(b)):
    2. (2)Die Casting (§ 464.15(c) and § 464.16(c)):
    3. (3)Dust Collection Scrubber (§ 464.15(d) and § 464.16(d)):
    4. (4)Investment Casting (§ 464.15(f) and § 464.16(f)):
    5. (5)Melting Furnace Scrubber (§ 464.15(g) and § 464.16(g)):
    6. (6)Mold Cooling (§ 464.15(h) and § 464.16(h)):