CCR surface impoundment

CCR surface impoundment or impoundment means a natural topographic depression, man-made excavation, or diked area, designed to hold an accumulation of CCR and liquids, and the unit treats, stores, or disposes of CCR.

Source

40 CFR § 257.53

Scoping language

The following definitions apply to this subpart. Terms not defined in this section have the meaning given by RCRA.