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Underground Residential Storage Tanks

Find permit information for removing, abandoning, or installing a residential fuel oil tank.
An underground storage tank exposed in a dirt excavation next to a house, documented for South King Fire permits.

Overview

Residential fuel oil tanks that have not been used for one year shall be removed from the ground or may be abandoned in place in a prescribed manner.

Permit Requirements

An International Fire Code Permit is required from the Fire Marshal’s Office in the Cities of Des Moines and Federal Way. Please fill out the form on our website for the “Underground Storage Tank.”

Underground Storage Tank Permit Application

A site plan, triple rinse certificate, and photos will be required for the permit.

Tanks shall be decommissioned in accordance with South King Fire Administrative Policy for Unused Residential Heating Oil Storage Tanks:

Unused Residential Heating Oil Storage Tanks

Unincorporated King County

In unincorporated King County, it will be necessary to visit the King County permitting website or contact them at 206-296-6600.

New Tank Installation

New tank installation requires a construction permit through the city in which you reside.

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