§280.42. Requirements for hazardous substance UST systems. — Inbound Citations

40 C.F.R. § 280.42

Statutory Authority

Cited by 2 regulations in release Current.

40 C.F.R. § 280.22(e)(4)

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(4) Release detection under §§ 280.41 and 280.42.
40 C.F.R. § 280.50(c)

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(c) Monitoring results, including investigation of an alarm, from a release detection method required under §§ 280.41 and 280.42 that indicate a release may have occurred unless:

(1) The monitoring device is found to be defective, and is immediately repaired, recalibrated or replaced, and additional monitoring does not confirm the initial result;

(i) Except as provided for in § 280.43(g)(2)(iv), any liquid in the interstitial space not used as part of the interstitial monitoring method (for example, brine filled) is immediately removed; and

(ii) Any defective system equipment or component is immediately repaired or replaced;

(3) In the case of inventory control described in § 280.43(a), a second month of data does not confirm the initial result or the investigation determines no release has occurred; or

(4) The alarm was investigated and determined to be a non-release event (for example, from a power surge or caused by filling the tank during release detection testing).