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City says Sherland Avenue cleanup grant will shift from soil mixing to removal
Summary
City staff told the council the Sherland Avenue environmental cleanup grant can’t achieve safe soil standards by mixing, so the project will use soil removal instead to stay within grant limits.
City staff updated the council on the Sherland Avenue environmental cleanup project, telling members the city will change remediation methods from soil mixing to soil removal to stay within the cleanup grant’s budget and performance limits. The change matters because it alters the remediation method and disposal path for contaminated soils; staff said mixing soils to reach safe thresholds was proving infeasible and that removing soils is the more reliable option to avoid exceeding grant funding. The staff report said technical sampling and laboratory results showed the city could not reach the grant’s safety bar by in‑place mixing; rather than risk surpassing grant funds, the project will proceed with selective soil removal. Staff said they prefer mixing (to avoid sending soils to landfill) but that the grant constraints left removal as the practical choice. The project may require multiple removal efforts and the city will continue to coordinate with the grant administrator. Staff did not provide a new cost estimate in the meeting discussion; they said the change is intended to stay within the grant amount. No formal contract amendment or appropriation was approved at the meeting; staff will return with implementation details and next steps. Ending: The council was informed of the methodological change; staff will provide further project specifics, including cost and scheduling, at a future meeting.
