Flint Road Landfill PFAS Remediation

Summary

Long-running remediation of PFAS contamination associated with the Flint Road landfill in Charlton. CMG Environmental (contractor lead: Gary) manages quarterly residential well sampling, bottled water and point-of-use treatment for affected homes, monitoring well installation/replacement, and capping of the landfill itself. Capping progress depends on receiving enough clean fill material; the Board of Health receives regular status updates.

Status

As of the July 21, 2026 Board of Health meeting: 61 homes still on quarterly sampling, 43 on bottled water, 5 with treatment/filtration systems, 13 consistent non-detects being tracked toward a 2-year reduction window. Only ~20% of clean fill needed for capping had been received, with an August meeting scheduled to decide whether capping proceeds in 2026 or is deferred. The September 15, 2026 Board of Health meeting likely contained further updates but no transcript was available.

Update September 15, 2026: capping timeline extended to ~18 months (fill supply); new detection at 114 Dresser Hill Rd; the July minutes' source-attribution passage is disputed and may need correction.

Log

2026-09-15 — 2026-09-15 - Board of Health Meeting

Contractor finished road work, relocated waste by the poles, lined/filled, and found ledge needing no liner or cap. Suitable fill (CO 97) is hard to source, so the schedule extended from ~1 year to 18 months with a winter pause expected (state OK with it). A new PFAS hit at 114 Dresser Hill Rd (previously non-detect) adds 3 homes to test and 1 bottled-water household. The board questioned a passage in the July minutes saying the landfill is unlikely to be the main PFAS source (15 Old Town Rd wells clean); to be checked. Meeting with Haskell/Magnuson on September 16 at 9:30. Captions are ASR; names garbled.

2026-07-21 — 2026-07-21 - Board of Health Meeting

CMG Environmental's Gary presented a detailed update: 61 homes on quarterly sampling, 43 on bottled water, 5 on treatment systems, 13 consistent non-detects moving toward a 2-year window before sampling could be reduced. New monitoring wells were being installed to replace ones placed in the waste itself. Capping this year contingent on clean fill delivery (only ~20% of needed volume received), with an August meeting to make the go/defer call. Testing at 15 Old Town Road wells came back clean, easing concern about a DPW-related off-site source. Operational items covered included mowing at 90 Flint Road, a resolved dust/dirt complaint, jersey-barrier driveway safety fix, and utility pole relocation with National Grid.