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Sherwood outlines schedule and outreach for former tannery cleanup
Summary
City staff and consultants updated the Sherwood City Council on a federally funded cleanup of the former tannery site, describing contamination, an EPA-approved community involvement plan, a permit-driven timeline and coordination needs with sewer and stormwater projects that overlap the site.
Jason Waters, Sherwood city engineer, told the City Council at a April 1 work session that the city is preparing to excavate contaminated material from the former tannery site and to coordinate the cleanup with several overlapping infrastructure projects.
The cleanup is driven by an EPA-funded brownfields effort and an EPA-approved community involvement plan, Waters said, and the city’s consultant expects remedial design, permitting and bidding work this winter and excavation next summer if permitting proceeds without major delays.
The site contains buried tannery wastes and contaminated lagoon sediments, consultant John Kuiper of WSP USA said, adding that the contamination is mainly chromium in buried hides and some sediments. "There's metals contaminated hides. So chromium, a little bit of lead, but it's mostly chromium that was buried on the site," Kuiper said. Kuiper estimated the volume of material that will require removal at close to 30,000 cubic yards.
Why this matters: the tannery cleanup overlaps multiple planned projects that the city wants to advance, including Oregon Street…
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