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Iowa DNR Guidelines For The Installation Of Underground Storage Tank Systems


The Iowa DNR has specific guidelines applicable to the installation of underground storage tank systems that will contain petroleum fuels or a hazardous substance.  Although licensed installers and inspectors handle the majority of the work and accompanying reporting requirements, it is important for underground storage tank (UST) owner/operators to understand the administrative process accompanying the installation process.  In fact, Iowa Administrative Code 567-134.24(4) and 135.3(3)h places the responsibility to ensure that all necessary forms for UST installation are submitted complete and on time to the Iowa DNR UST Section. 


Documentation Required to be submitted to the Iowa DNR UST Section:

  • Intent to Install Notice – Required 30 days prior to installation
  • Iowa DNR Form 148 with attachments – Required 30 days after the final 3rd party installation inspection
  • Payment of $10 registration fee and $65 per compartment tank management fee
  • Detailed site diagram including tank layout, piping runs, street references, and dispensers
  • UST system tightness test results to confirm the system is tight with no damage incurred during shipping or installation
  • Copy of class A/B operator training certification
  • Third-party installation inspection checklist – must be submitted by the installation inspector within 14 days after the final inspection
    • Signed and dated by both the certified installer and owner
  • Certification of financial responsibility (maintain communication with your financial responsibility provider throughout the process


Iowa DNR issued guidance for UST installations along with relevant UST related forms required by the Iowa DNR UST Section can be found here on the Iowa UST Section website and a detailed memo outlining the UST installation process can be found here on the PMCI website.

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