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Council authorizes additional PFAS monitoring at C Street landfill under Ecology deadline
Summary
The council adopted a late contract amendment with Aspect Consulting to expand post-closure monitoring at the C Street landfill to include PFAS testing after a Department of Ecology request; staff said sampling will occur multiple times this year and is grant-funded.
The Shelton City Council on April 15 adopted resolution 1379-0425 authorizing contract amendment No. 4 with Aspect Consulting LLC to expand post-closure monitoring, sampling and reporting at the C Street landfill to include PFAS (per- and polyfluoroalkyl substances) testing.
Public Works staff said the Department of Ecology issued a short notice requiring the city to develop and submit a sampling plan for PFAS at the landfill. The amendment is intended to allow Aspect Consulting to complete the monitoring program and submit it to Ecology on the accelerated timeline. Staff said the work is covered by an existing grant and that the city hopes to increase grant funding to cover continued testing.
Assistant Public Works Director Grama Armstrong described the site history and noted the landfill had not completed an official closure process with Ecology, which requires capping, testing and monitoring. The council discussed how closed or capped landfills may be repurposed for low-impact uses such as trails or dog parks, but that such uses are limited by cap integrity, settling and Ecology requirements. Armstrong said Ecology typically requires monitoring for at least 20 years, and that certain redevelopments are possible only after testing and closure obligations are satisfied.
The resolution was introduced as a late agenda item because Ecology provided limited notice. The council moved to adopt resolution 1379-0425; the motion carried. Council members emphasized this as an environmental health and regulatory compliance step; staff said, to date, the city has not detected PFAS in the drinking-water system but will sample the system three times this year as part of the expanded monitoring program.
