Montlake Texaco

Ecology received the Remedial Action Plan on April 13, 2021, and issued an opinion letter regarding the Plan on May 19, 2021.  

The Site consists of two property parcels occupied by a gasoline service station and the Montlake Market.  Earliest available records indicate that the Property was initially developed as early as 1926 and might have included gasoline service station activities at that time.King County Assessor records show the Montlake Market building and the gasoline station building were constructed in 1937 and 1952, respectively. The service station building was remodeled in approximately 1980 to incorporate bays for auto servicing and repair. 

WSDOT acquired the property in June 2019. Business activities in these two structures ceased at the end of 2019 and the structures were demolished in early 2020. The WSDOT contractor for the SR 520 Montlake Project is currently using the property for construction equipment staging.  Four fuel underground storage tanks (USTs) on the property have been temporarily closed.

·         Total petroleum hydrocarbons (TPH) in the gasoline, diesel, and oil ranges (TPH-G, TPH-D, and TPH-O); benzene, toluene, ethylbenzene, and xylenes (BTEX); and carcinogenic polycyclic aromatic hydrocarbons (cPAHs) into the Soil.

·         TPH-G, TPH-D, TPH-O, BTEX, cPAHs, and arsenic into the Groundwater.

This site is in our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.

Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as sites Ecology manages under legal orders.