What Do I Do With Out-Of-Service USTs?

Thursday, July 22, 2010 by August Mack Environmental, Inc.

An underground storage tank (UST) Systems may be closed voluntarily if owner or operator chooses, or by mandate if system is not in compliance with regulations.

 

The guidelines for a temporary UST closure are:

  • Corrosion protection must be maintained
  • If UST is temporarily closed for 3-12 months:
  • Leave vent line open
  • Cap and secure all other lines, pumps, equipment, etc.

Keep in mind that if an UST is temporarily closed for more than 12 months it must be permanently closed.

The guidelines for a permanent closure or changes in service are:
 

  • Notify implementing agency 30-days before beginning closure or change-in-service
    • Empty tank and clean residual product/sludges
    • Remove from ground or fill with an inert solid
    • Perform UST closure assessment
  • Before Closure or change-in-service is complete, owners and operators must measure for presence of contamination.
    • Sample types, locations, and methods dependent on site conditions
    • If contamination is identified, Corrective Action must be initiated
If you have questions about what to do with an out-of-service UST, give one of the environmental remediation specialists at August Mack Environmental a call at 800.579.0770.
 

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