Operable unit.

Operable unit. A discrete action, as described in the Cooperative Agreement or Superfund State Contract, that comprises an incremental step toward comprehensively addressing site problems. The cleanup of a site can be divided into a number of operable units, depending on the complexity of the problems associated with the site. Operable units may address geographical portions of a site, specific site problems, or initial phases of an action, or may consist of any set of actions performed over time or any actions that are concurrent but located in different parts of a site.

Source

40 CFR § 35.6015

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Scoping language

As used in this subpart, the following words and terms shall have the following meanings:

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