Welcome to the California Regional Water Quality Control Board, Colorado River Basin Region Welcome to the California Environmental Protection Agency
Underground Storage Tanks (UST)

Underground Storage Tanks (UST)

The Colorado River Basin Regional Water Quality Control Board (Region 7) UST program staff oversees corrective actions associated with unauthorized releases or leaks from underground storage tanks within Colorado River Basin Region's boundary. The Regional Board UST program staff also provides technical assistance to the following local agencies that provide corrective action oversight for some of the Leaking Underground Storage Tank (LUST) sites:

  • County of Riverside Department of Environmental Health
  • County of San Diego Department of Environmental Health
  • County of San Bernardino Fire Department
  • County of Imperial Planning and Building Department.

All corrective actions are conducted pursuant to Article 11, Chapter 16, Division 3, Title 23 of the California Code of Regulations and Region's 7 Water Quality Control Plan requirements.

Region 7's LUST database is available on GeoTracker - a statewide geographic information system that tracks regulatory data on underground fuel tanks, fuel pipelines, and public drinking water supplies. A Methyl Tertiary Butyl Ether (MTBE) report that summarizes reported MTBE information for LUST sites is also available on GeoTracker.

Questions or comments about the Colorado River Basin Region UST program?

  • Please email Kai Dunn or phone (760) 776-8958.