Technical Assistance Agreement Sites (TAAG)
Cleaning Up Multiple Gasoline Station Sites
Ecology's Northwest Regional Office (NWRO)
Please select a TAAG group (7-Eleven, ANTEA, BP, or TOC Holding Company)
on the navigation bar at left to go to their individual page.
TAAGs were created to help facilitate the cleanup of underground storage tanks.
A TAAG is a Technical Assistance
Agreement between Ecology and oil companies to facilitate
cleanups of leaking underground storage tanks. Older gas stations used steel underground tanks and piping
which corroded over time and frequently leaked into soil,
groundwater, and in some cases, surface water. A substantial
number of fueling stations built before 1998 have been found to
have leaking underground tanks. Since 1998, gas stations are
required to meet Ecology’s
Underground Storage Tank regulations that safeguard against
corrosion and leaks, maintain leak-detection systems, and
undergo regular inspections by Ecology.
Why It Matters
Commitment from Companies
Each TAAG has a written contractual agreement signed by
Ecology and the oil company to clean up contamination at current
and former gas stations to protect the environment.
Companies participating with Ecology's NWRO are
TOC Holding Co.
Ecology agreed to assign a Voluntary Cleanup Program (VCP) Site Manager to each TAAG
agreement to provide accessible, informal and consistent
site-specific technical consultations. Each TAAG consists of less than 30 VCP Sites.
Ecology will coordinate the cleanup process with each of the
TAAG participants with the
goal of reaching a No Further Action (NFA). A NFA letter
is issued if no further
remedial action is necessary at the site under state regulations (Model
Toxics Control Act (MTCA). A total of 67 sites in the NWRO region are currently
being cleaned up under this type of agreement.
How are TAAG Sites being cleaned up?
TAAG sites that are cleaned up under the VCP enable owners of
contaminated sites to receive technical guidance from Ecology
while working on an independent
basis rather than under an Ecology-directed formal order.
Participants in the VCP pay fees to Ecology to cover the
department’s costs for guidance and review. VCP sites must meet
the same cleanup standards as those formally managed by Ecology
under the Model Toxics Control Act, created by a 1989 voter
What’s Next for TAAGs?
Based on the TAAG results, Ecology may pursue similar
agreements with other companies that own current or
former gas station sites in Ecology’s Northwest Region.
Who to contact regarding TAAGs?
If you are interested in entering into a TAAG agreement with
Ecology, please contact:
Louise Bardy, Northwest Regional Office
Voluntary Cleanup Program Unit Supervisor.
Address: 3190 160th Ave SE
Bellevue, WA 98008
Phone: (425) 649-7209