Underground Storage Tank (UST) Unit

Underground Storage Tank (UST) Program

The Santa Ana Regional Water Quality Control Board’s (Santa Ana Water Board’s) Underground Storage Tank and Site Cleanup Program Section (UST/SCP Section) directs environmental cleanup activities at leaking UST sites located within the Santa Ana Region. These sites include active and inactive gasoline stations, agricultural sites, brownfield redevelopment sites, airports, bulk petrochemical storage terminals, pipeline facilities, and various chemical and industrial facilities.

Certified Local Oversight Programs (LOPs) can also manage leaking UST sites within the Santa Ana Region. The local agencies work cooperatively with the Santa Ana Water Board to manage cases in their jurisdiction. Contact information for the remaining Certified LOP within the Santa Ana Region is provided below:

Internet Link
Orange County LOP Geniece Higgins 714-433-6260 Orange County Healthcare Agency


Geo Tracker Database

Information on leaking UST sites can be found using the State Water Resources Control Board’s data management system – GeoTracker. For online access to environmental data for UST cleanup sites, click the following link to access GeoTracker.




Please direct any questions concerning the UST Program to Maile Gee, Supervisor of the UST/SCP Section, at maile.gee@waterboards.ca.gov and (951) 782-4379.