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On March 15, 2000, the DEQ Heating Oil Tank Program began licensing companies to certify that heating oil tank decommissionings and cleanups were protective of human health and the environment.

HOT cleanup projects can be very complex. Examples of these complex sites include but are not limited to the following:

• Where significant releases to soil cannot be removed to Oregon cleanup criteria due to large volumes;
• Where buildings or other subsurface features make removal of soil contamination infeasible;
• Where contamination may affect current or future beneficial uses of groundwater or surface water;
• Where engineering controls are needed to achieve protective conditions at the site. An example of an engineering control would be a vapor barrier or depressurization system designed to eliminate the ability of sub-surface vapors to enter a structure;
• Where on-going monitoring will be needed to confirm engineering controls are performing properly or beneficial groundwater uses are not affected; and/or
• Where filing of an institutional control, or deed restriction, to restrict a specific use of the site will be necessary.

The current certification fees for Soil Matrix ($250), Generic Remedy ($350) and Risk-Based ($450) allow DEQ to provide limited direction and technical assistance to homeowners and service providers.

These complex sites generally require more coordination between DEQ and the service providers. To meet this need, DEQ developed a HOT Cleanup Agreement that allows DEQ to be adequately involved in complex sites.

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HOT Program staff will work with your licensed HOT service provider to determine if issues associated with your site warrant HOT Program Cleanup Agreement enrollment. If so, DEQ will mail the HOT Program Cleanup Agreement packet to you for your review and completion.

Enrollment in the HOT Program’s Cleanup Agreement requires an initial deposit of $500. Once you sign the agreement and submit the deposit to DEQ, an account will be established for your site.

If project costs exceed the account balance, DEQ will submit to you an invoice for all costs in excess of the advance up to a ceiling of $1,000. Note: The $1,000 ceiling applies to residential properties only, and not commercial or industrial sites.

​Yes, the certification registration fees for Soil Matrix ($250), Generic Remedy ($350) and Risk-Based ($450) must be submitted when filing the certification for HOT Program review.

If a Cleanup Agreement is in place, the certification registration fee is included with the $500 deposit.

​Yes, licensed HOT service providers must still certify that the work performed meets the requirements of Oregon law (Oregon Administrative Rules 340-122-0205 through 340-122-0360 Chapter 340, Division 177).

​Depending on site conditions, a conditional no further action letter may be issued for the site. A site that may warrant issuance of a no further action letter in lieu of a closure letter would involve the presence of an engineering control that would require operation and maintenance.

​No, but you are required to satisfactorily complete the cleanup. At complex sites, your service provider may recommend that you hire an environmental consulting firm (i.e. registered geologist or professional engineer) to design a protective cleanup and allow the contractor to certify the project. DEQ recommends that you sign up because we think that the HOT Cleanup Agreement will allow DEQ to work more closely with your service provider and ultimately provide a more cost-effective certification.

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 [email protected] or call DEQ at 503-229-5696 and ask to speak to the HOT Duty Officer.