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Shelton moves Bootill supplemental investigation toward Ecology VCP review; Herrera Inc. was sole bidder
Summary
Staff described a supplemental site investigation at Bootill under Ecology's Voluntary Cleanup Program; scope includes three borings, ecological evaluation and data uploads; Herrera Inc. was the only bidder and the city estimated disposal costs (if removal required) at about $750,000; council forwarded the PSA to the May 5 action agenda.
Shelton staff briefed the council on a supplemental investigation and Voluntary Cleanup Program (VCP) support project for Bootill, a long‑standing site of accumulated street sweepings and vacuum truck waste near the SR‑3 park-and-ride. Stormwater technician Patrick Hoffman summarized the site's testing history and the proposed next steps.
Hoffman said soil testing since 2000 shows contaminants trending down but flagged carcinogenic polycyclic aromatic hydrocarbons (PAHs) as the primary contaminant of concern. The proposed scope includes a review of historical data, a sampling and analysis plan (with health and safety plan), three additional borings (three soil samples at each boring), one groundwater sample, laboratory analysis, a terrestrial ecological evaluation and coordination with Ecology to pursue a "no further action" determination if the data support it.
The city used the MRSC consultant roster and received one bid from Herrera Inc., who previously worked on similar projects, Hoffman said. He estimated that full removal and disposal of Bootill material, should that be required, could cost on the order of $750,000; Hoffman and Ecology staff have indicated on‑site trends may make full removal unnecessary, but results will determine next steps. The council voted to forward Resolution 1434-0426 (a PSA with Herrera Inc.) to the May 5 action agenda for final authorization.
Council members asked about potential off‑site leaching, proximity to the historic Shelton pear orchard, brownfields funding and the need for additional groundwater follow-up; Hoffman said the proposed fieldwork includes targeted groundwater sampling and that additional work would depend on initial results.
