Department of Ecology News Release - July 10, 2015

Soil cleanup completed at former Seattle fuel terminal

SEATTLE – Excavation for a new office and technology building one block north of Lake Union included the successful removal of contaminated soil, fulfilling a 2007 legal agreement between the developer and the Washington Department of Ecology.

The Touchstone NLU LLC Northedge project at 3301 Densmore Ave. N. occupies part of a former fuel terminal and transit fueling station. Touchstone shipped 110,000 tons of soil that contained petroleum contamination for disposal to an approved and licensed waste facility.

The cleanup portion of the project occurred between July 2014, and January 2015. Contractors also dug out 42,000 tons of clean soil as part of the excavation.

“This is a textbook example of how our state’s cleanup law works to return contaminated land to clean, productive new use,” said Bob Warren, Ecology’s regional cleanup supervisor. “Redevelopment of other contaminated sites is bringing about similar cleanups throughout Seattle and Washington.”

Process to finalize cleanup begins

Ecology seeks public comment through Aug. 17, 2015, on a report and a proposal to legally close the books on Touchstone’s cleanup at the Northedge site:

Both documents are available at:

People may send comments and questions about the draft cleanup report and proposal to close the PPCD  to Maura O’Brien, Ecology site manager, by email,, by mail to Department of Ecology, 3190 160th Avenue SE, Bellevue, WA 98008-5452, or by phone at 425-649-7249.

Soil removal is part of a larger cleanup

Ecology continues to oversee a related, separate effort to clean up groundwater contamination.

Touchstone’s 1.5-acre property is part of a cleanup site that includes two parcels, plus the street in between. The two former owners, Chevron Environmental Management Company and King County Metro Transit, are conducting groundwater monitoring and cleanup.

The site’s primary contaminants are petroleum products, arsenic and lead. Chevron and Metro are monitoring and cleaning up groundwater on all parts of the site and soil in parts other than the Touchstone parcel. Chevron and Metro conduct their cleanup work and monitor the site under a 1999 legal agreement with Ecology.

The cleanup is scheduled for completion later this year.

An Ecology fact sheet provides more information on the cleanup and proposal to close the legal agreement.


Larry Altose, communications, 425-649-7009, @EcySeattle

Maura O’Brien, site manager, 425-649-7249

Shawn Parry, Touchstone, 206-727-2393

Randy Witt, Metro Transit, 206-477-5570

Eric Roehl, Chevron, 714-671-3347