Oregon’s Drafted Regulations are Now in Effect

As of June 1st, 2018 Oregon DEQ has revised UST regulations promulgated to rule and are now in effect. The regulations underwent public comment in February, and Environmental Quality Commission adopted the proposed rules on May 11th, 2018. Some revises changes to the regulations include the following:
  • 30 day notification for changing regulated substances of a UST containing greater than 10% ethanol or 20% biodiesel
  • Demonstrations of UST system compatibility
  • Under Dispenser Containment required for each new, moved, or modified dispenser
  • All new or replacement USTs and connected piping must be secondarily contained and monitored using interstitial monitoring
  • Flow Restrictors/Ball float valves are now longer allowed to be installed and cannot be repaired
  • 30 day release detection for spill prevention and containment sumps used for interstitial monitoring
  • 30 day walkthrough inspections for spill prevention and release detection begins 7/1/2020
    • Annual inspections for containment sumps and hand held release detection
    • Maintain these inspections for at least one year
  • 24hr reporting on corrosion protection test failures
  • Annual release detection operability testing
  • Overfill prevention inspected at least once every 3 years
  • On or after July 1st, 2020, owners and permittees of FCTs and AHSs must comply with 340-150-0137(2) and the training requirements for UST operators in this rule
  • Vapor monitoring and groundwater monitoring are now longer allowed as an approved release detection method
  • 24 hour notification to the DEQ for unusual operating conditions such as:
    • erratic behavior of dispensing equipment
    • sudden loss of product
    • widely fluctuating water levels
    • liquid in interstitial space (when brine is not used)
  • Emergency generator tanks are subject to release detection requirements on 7/1/2020.
    • All newly installed emergency generator tanks are subject to release detection requirements immediately
For more information on the accepted changes, please visit the Oregon UST website here To view the redline of all revised changes, please visit here.
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