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Nantucket Memorial Airport begins Phase 4 PFAS scoping to target soil remediation near runways
Summary
The commission heard a technical update on Phase 4 sampling and remediation planning for PFAS contamination, with plans for lysimeter and soil sampling to narrow remediation footprints and a contract amendment for PFAS services included in the contracts vote.
Madison Collins, the airport’s environmental coordinator, told the Nantucket Memorial Airport Commission on June 17 that the airport is launching Phase 4 scoping to better locate per- and polyfluoroalkyl substances (PFAS) in soil and measure leaching toward groundwater.
Collins said engineers plan two kinds of sampling: lysimeters to capture soil moisture fluxes and targeted soil samples—“15 shallow locations and 4 deep locations”—to map vertical extent. She said the goal of the testing is to “support a reduced footprint and shallower depths for soil remediation.”
The testing will guide whether active remediation (excavation and soil washing or a treatment called Florasorb tilling) or…
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