Wayland's former DPW site classified Tier 1 over PFAS in groundwater

WAYLAND -- April 10, 2025, Every well tested at Wayland's former DPW site exceeds the state PFAS drinking water standard. Licensed site professional Gould of CMG told residents Thursday that 195 Main St. is now a Tier 1 disposal site under the Massachusetts Contingency Plan because contaminated groundwater, with PFAS6 readings up to 172 parts per trillion against a 20 ppt standard, is migrating toward Dudley Pond and the Happy Hollow wellfield, where Well 1 measured 33.2 ppt before a resin treatment system started in February 2022. Soil at the parcel also shows lead at 303 ppm and barium at 1,030 ppm, just over reportable limits. "The PFAS is a problem," Gould said; "the rest of it is things you have to address." He proposed six more monitoring wells, four on 195 Main St., two on adjoining town-owned 207 Main St. at roughly $300 per PFAS sample. Public comment on the draft plan runs through May 10.