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Aluminum Recycling Trentwood
SITE DESCRIPTION
The site is located at 2317 North Sullivan Road near the Spokane River in the
Spokane Valley.
Negotiations began April 13, 2009, for an Agreed Order between Ecology and the
Union Pacific Railroad to conduct a Remedial Investigation and Feasibility Study
(RI/FS) at the Aluminum Recycling Trentwood site. Once negotiations are
complete, the Agreed Order will be made available for public comment.
The Agreed Order is a legal document issued by Ecology. It formalizes the
agreement between Ecology and Union Pacific Railroad to assess the contamination
and the need for cleanup actions at the site. The purpose of the Remedial
Investigation is to gather more information to determine the nature and extent
of dross contamination that may be in soil and groundwater. The Feasibility
Study will evaluate cleanup options.
In 1979 aluminum processing operations began at the site. The facility
processed aluminum skim called white dross, obtained from aluminum smelters, and
aluminum scrap materials in a batch process. This secondary processing of
aluminum dross involved the addition of sodium and potassium chloride salts.
Molten aluminum metal was extracted during the process, poured into ingots, and
sold. Spent dross-process waste called black dross, along with
non-reprocessed white dross waste, remains on the site.
The Spokane Regional Health District completed an assessment of the property in
February 2008 and ranked the site a two on Ecology’s Hazardous Sites List.
The Hazardous Sites List is a record of contaminated sites throughout the state
that are ranked on a scale of one to five. One represents the greatest potential
threat to human health and the environment; five represents the least potential
threat.
Currently, the amount of dross material on site is unknown; however, dross is
estimated to cover nearly three acres. The Remedial Investigation and
Feasibility Study will provide additional information to assess past and current
site conditions and evaluate what needs to be done to protect human health and
the environment.
SITE DOCUMENTS
August 20, 2009
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SITE INFORMATION
Facility Site ID:
#
628
Location:
Spokane Valley, Spokane County
Contact:
Sandra Treccani
Site Manager
509\329-3412Carol Bergin, Public
Involvement Coordinator
509\329-3546
Status:
Ranked, awaiting remedial action
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