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Heating Oil Tanks

The HOT Program handles issues related to:

  • Tanks storing fuel oil (typically Number 1 and 2 diesel oil) to heat buildings for human habitation.
  • Requirements for the voluntary decommissioning of HOTs.
  • Reporting releases from HOTs and the cleanup of soil and groundwater contamination.
  • Rules for contractors working on HOTs and the cleanup of soil contamination.

Fees, effective Jan. 1, 2020

Report Filing Fees

Clean Decommissioning: $100/project
Cleanup Report:
Tiered based on project type:
  1. Soil matrix (Simple): $250
  2. Generic Remedy (Intermediate): $350
  3. Risk-based (Complex): $450

Licensure Fees

Service Provider License

  • Year 2020 - $800/yr
  • Year 2021 - $900/yr
  • Year 2022 - $1000/yr

Service Provider Supervisor License: $100/year

Heating oil tank databases

Search HOT clean-up sites - a leak was discovered  

This spreadsheet lists properties with former heating oil tanks that have a registered certificate of voluntary decommissioning filed with DEQ. Tanks on this list were closed following DEQ rules and a leak was not detected.  This list is updated quarterly.

Note: This only lists sites where a tank leak was not found. Please use the “Search HOT Clean-up Sites” link above to identify sites where a leak has been reported or cleaned up.

The spreadsheet is sorted by street number, which is the most reliable way to find a listing. If you re-sort the spreadsheet by street name, zip code, city, etc. some files may be missed. The addresses have not been standardized or validated and may contain errors.

Voluntary decommissioning registration began in March 2000. Tanks decommissioned in 1999 and earlier are not included unless they have been demonstrated to meet all decommissioning rules, including soil testing, and a report is filed with DEQ.
A complete copy of the project report is available from DEQ including a map with the tank location and soil sampling results. To obtain a copy please file a Public Records Request.

You can download your own copy of the list or request one by email from the HOT Program.

For further assistance please email or call DEQ at 503-229-5696 and ask to speak to the HOT Duty Officer.

Contact us

Phone: 503-229-6170
Toll-Free: 800-742-7878