Boeing Field Chevron

Progress at this site was supported by funds set aside for assessing Leaking Underground Storage Tank (LUST) sites across the state. Selected sites receive Ecology funding with the goal of reducing the state’s LUST backlog.

Site location

The Site is located between Pacific Highway South and East Marginal Way, immediately south of the South Boeing Access Road. The Site is located approximately 250 feet east of the Duwamish River and approximately 1/2 mile southwest of Boeing Field. 
Final site boundaries will be defined by the extent of contamination determined during the remedial investigation.  
The Lower Duwamish Waterway drainage basin is divided into source control areas. This site is located within the Norfolk Combined Sewer Overflow/ Storm Drain Basin Early Action Area source control area along the east bank of the river at river mile 4.9.

Site history

The Boeing Field Chevron facility has operated as a gasoline station since 1940. Standard Oil and Chevron operated the Site from the late 1960s to the mid 1980s. 

The site currently includes underground storage tanks with associated pump islands and dispensers, a car wash and a mini-mart building.

Contamination

In soil and groundwater:

•Diesel and gasoline-range hydrocarbons
•Light Non-aqueous Phase Liquids (LNAPLs)
•BenzeneTolueneEthylbenzeneXylenes


Previous cleanup work

Chevron reported releases of gasoline to Ecology in 1990 and 1996 associated with the former underground storage tanks (USTs). As a result, Chevron removed eleven USTs, three pump islands, the former service station building, and about 2,500 cubic yards of petroleum contaminated soils (PCS) from the site between 1990 and 1996.

Some soil and groundwater with petroleum hydrocarbon concentrations above MTCA cleanup levels remained on the site. In 2003 Chevron reported a new release of gasoline. Some chemicals from the different releases are co-mingled.

The Model Toxics Control Act (MTCA; Chapter 70.105D RCW is Washington’s environmental cleanup law). It provides requirements for contaminated site cleanup and sets standards that protect human health and the environment. Ecology enacts the MTCA and oversees cleanups. The MTCA site cleanup process is completed in steps (see graphic) over a variable timeline.

What's In My Neighborhood shows contamination cleanup sites in Washington state. Learn more and subscribe to other cleanup sites. Ecology encourages cleanup of these sites to protect the health of people, plants, and animals. Cleanups are projects that remove, treat, or contain potentially harmful substances. 

To report an environmental problem or concern, any time, day or night, use the online reporting form.

Counties: Island, King, Kitsap, San Juan, Skagit, Snohomish, and Whatcom
Email: nwroerts@ecy.wa.gov
Phone: 206-594-0000

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