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What To Do In The Event Of A Release

Preventive Measures To Take Before A Leak Is Suspected Or Confirmed

  • Make sure you are in full compliance with leak detection regulations.
  • Make sure all employees know how to operate and maintain leak detection systems to minimize false alarms.
  • Know what to do if a leak in an underground storage tank system occurs.
  • Get to know pertinent people in the Division of Underground Storage Tanks so you will know whom to contact in case of a suspected or confirmed release.
  • Get to know members of the local fire department and their emergency response capabilities.
  • Obtain an environmental consulting company to ensure quick responses to a system release.

Warning Signals Of A Leaking UST System

  • Dispensing equipment and/or leak detection equipment begins operating erratically.
  • Inventory discrepancies in excess of 1% of monthly throughput plus 130 gallons.
  • Neighborhood reports of petroleum odors in homes, drinking water or sewage systems.

What To Do When A UST System Release Is Suspected

  • Check dispensing and leak detection systems for malfunctions.
  • If equipment is malfunctioning, have it fixed or replaced. Keep accurate records for each UST system repair as long as it is in service.
  • Report any suspected release to appropriate TN UST Environmental Assistance Center within 72 hours.
  • Conduct tightness tests, or other appropriate tests, on all suspect tanks and piping.
  • If tests indicate a release has occurred, report it to the appropriate TN UST Environmental Assistance Center within 72 hours.
  • Keep daily logs documenting all actions taken on leaking UST system.

Actions To Take For A Confirmed Release

Immediate actions:

  • Stop and contain the leak or spill.
  • Call local fire department to evaluate if explosive conditions are present.
  • Remove vapors or fire hazards to ensure the spill or leak poses no immediate hazard to human health or safety.
  • Begin removing free product, if it is present.
  • Contact an approved corrective action contractor (CAC).

Short term actions:

  • Determine extent of soil and groundwater contamination.
  • If contaminated soil is excavated, handle it in accordance with TN UST Guidelines and Regulations.
  • Submit an Initial Abatement Report to TN UST 30 days after a release is confirmed. Include all relevant information about the release and actions taken to mitigate fire and vapor hazards.

Long term actions:

  • Based on information provided to TN UST, it will be determined if additional remediation must be taken.
  • If additional remediation is necessary, submit a Corrective Action Plan to TN UST.
  • Once the plan is approved, implement it to remediate soil and groundwater to applicable cleanup levels.