A permit is required from DEQ for the installation or closure of underground storage tanks.

• Installation of leak detection systems including wells or corrosion protection systems requires a permit. 
• Modification, repair, or lining of an existing UST system also requires a permit. 
  Your licensed UST system installer or remover may assist you with obtaining the necessary permit, or you may begin the application process here:
  • How to Submit a Completed Permit Application
  • Critical Installation Requirements
  • Work that Requires a Permit for UST Systems
  • UST System Installation, Modification, Repair and Closure Process
  • UST Permit Applications
  • Found Tanks
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