Underground Storage Tank (UST) Program

Leak Prevention

The State Water Board established regulations governing prevention of leaks from underground storage tanks (USTs). There are published standards and requirements for installation, tank construction, tank testing, leak detection, spill containment and overfill protection. California UST laws and regulations give local agencies (counties, cities, or other local agencies) authority throughout the State to issue permits for tank operation and to enforce tank testing requirements within their jurisdiction.

• Leak Prevention Statutes and Regulations
• Technical Information, Publications and Documents
• Local Guidance (LG) Letters
• Leak Detection Equipment
• CUPA Program
  • Cal/EPA Unified Program Section
  • Cal CUPA Forum Board
• Training
• Forms
• Red Tag Regulations and Instructions
  • Red Tags affixed by CUPAs (listed by CUPA or date affixed)
• UST Program Statistics
• Underground Storage Tank Cleanup Fund - RUST / IUST Grants
• Public Record UST Summary Information (updated 01/02/2019)
• Report 6
• Report 6 Semiannual/Quarterly Data
  • October - December 2018
  • July - September 2018
  • January - June 2018
  • January - June 2017
  • July - December 2017
  • January - June 2016
  • July - December 2016
  • July - December 2015
  • January - June 2015
  • July - December 2014
  • January - June 2014
  • July - December 2013
  • January - June 2013
  • July - December 2012
• Leak Prevention Staff
• Frequently Asked Questions