The purpose of the Underground Storage Tank (UST) program is to protect public health, the environment and groundwater from potential contamination or adverse effects associated with unintended releases from the underground storage of hazardous materials. 

 What is an Underground Storage Tank?

 An UST is defined in California Health and Safety Code as "any tank and its associated piping (located substantially or totally underground) which is used for the storage of hazardous substances."

 Program Overview

• Environmental Health Division provides regulatory oversight for the operation of UST systems including:
• Annual permit issuance
• Routine inspections of ongoing site operations
• Review and approval of construction, repair, upgrade and removal applications
• Inspections of construction, repair, upgrade and removal activities

 Additional Information
State Water Resource Control Board
Underground Storage Tank (UST) Program Forms
Environmental Health Documents and Forms