Underground Storage Tank (UST) Cleanup Case Proposed Closures

UST cleanup case closures currently proposed for consideration by the Santa Ana Regional Water Quality Control Board (Santa Ana Water Board), pursuant to State Water Resources Control Board (State Water Board) Resolution No. 2012-0061, are listed in the table below. These are cases that meet the criteria of the Low-Threat UST Case Closure Policy.

A 60-day public comment period has been posted for all UST cases being considered for closure. Comments for a specific case must be submitted to the Santa Ana Water Board prior to the deadline listed in the table below. After the comment period closes, comments received will be reviewed and responses will be issued. If no comments are received for a proposed case closure during the comment period, the closure process will continue.

Some UST case closures may be considered by the State Water Board instead of the Santa Ana Water Board. A list of these proposed closures can be found by clicking on the following link for State Water Board UST Proposed Closures. For a list of State Water Board UST case closure approvals and closure denials, click the following link to the State Water Board website for Closure of UST Cases – Closure Denials and Approved Orders.

 ¹Proposed case closures posted prior to July 1, 2023 can be found on the site-specific GeoTracker database.