TACOMA SMELTER PLUME CLEANUPDate: September 2015 to present
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DescriptionThe Tacoma Smelter Plume Project is a $94 million effort to replace soil polluted with lead and arsenic. The project focuses on remediating play areas and yards closest to a copper smelter plant that ceased operation in 1985. Read more about the project in a story by The News Tribune.
Materials4,000 cubic yards of 3-Way Topsoil
HighlightsOur soil met tough guidelines implemented by the EPA, including strict tolerances for gradation and moisture content. Our soil also met the requirements of tests screening for chemicals and heavy metals. This ensured that safe, clean soil took the place of contaminated soil and made homeowners safer.
The Washington Department of Ecology created a video to show the process of remediating the soil around homes. According to an expert interviewed in the video, "You will know the new soil is clean because we do analytical testing on all of the topsoil. And we do that once before construction and at regular intervals during construction."