40 CFR 280.61 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (Subparts A-B To Parts 293-299) — Environmental Protection Agency (Continued) (Subparts A-B To Parts 293-299) — Solid Wastes (Continued) (Subparts A-B To Parts 293-299) — Technical Standards And Corrective Action Requirements For Owners And Operators Of Underground Storage Tanks (Ust) (§ 280.10 To Appendix Iii To Part 280) — Release Response And Corrective Action For Ust Systems Containing Petroleum Or Hazardous Substances (§ 280.60 To § 280.67) — Initial response.

Upon confirmation of a release in accordance with § 280.52 or after a release from the UST system is identified in any other manner, owners and operators must perform the following initial response actions within 24 hours of a release or within another reasonable period of time determined by the implementing agency:

(a) Report the release to the implementing agency (e.g., by telephone or electronic mail);

(b) Take immediate action to prevent any further release of the regulated substance into the environment; and

(c) Identify and mitigate fire, explosion, and vapor hazards.