Action level,

Action level, for the purpose of subpart I of this part only, means the concentrations of lead or copper in water as specified in 141.80 which determines requirements under subpart I of this part. The lead action level is 0.010 mg/L and the copper action level is 1.3 mg/L.

Source

40 CFR § 141.2

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Scoping language

As used in this part, the term:

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