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§ 469.12 Specialized definitions.
The definitions in 40 CFR part 401 and the chemical analysis methods in 40 CFR part 136 apply to this subpart.
In addition,
(a) The term “total toxic organics (TTO)” means the sum of the concentrations for each of the following toxic organic compounds which is found in the discharge at a concentration greater than ten (10) micrograms per liter: