Eligible unlined CCR surface impoundment

Eligible unlined CCR surface impoundment means an existing CCR surface impoundment that meets all of the following conditions:
(1) The owner or operator has documented that the CCR unit is in compliance with the location restrictions specified under §§ 257.60 through 257.64;
(2) The owner or operator has documented that the CCR unit is in compliance with the periodic safety factor assessment requirements under § 257.73(e) and (f); and
(3) No constituent listed in Appendix IV to this part has been detected at a statistically significant level exceeding a groundwater protection standard defined under § 257.95(h).

Source

40 CFR § 257.53

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Scoping language

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

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