Toxicity from halogens

Toxicity from halogens (chlorine, bromine, and bromo-chloro compounds) will be controlled by dehalogenation and chemical-specific limits. The dehalogenation requirement is implemented as "no measurable amount" in an effluent, less than 0.1 mg/l for halogenated oxidants. Where halogenated oxidants other than or in addition to chlorine are used, the permit limitation will be expressed as TRO rather than TRC. Permits will reference the approved 40 CFR Part 136 analytical method for TRC when expressing permit limitations in terms of TRO.