A local wells system, genuinely clean data, and a real supply-capacity story
The Kingston Water Department doesn't buy water from anyone. It draws entirely from seven gravel-packed groundwater wells spread across three well fields — South Street, Grassy Hole/I-86, and the Richard W. Loring Trackle Pond well — treating for corrosion control and, at two sites, for naturally occurring iron and manganese. That's a genuinely different setup from towns that buy finished water wholesale from a regional authority or lean on a shared reservoir with neighboring towns.
The town's own 2023 and 2024 Consumer Confidence Reports show no MCL violations across any regulated contaminant, PFAS6 results far under the state's 20 ppt standard, and lead results well under the federal action level. The real, current story in Kingston isn't a contamination narrative — it's a supply-capacity one: the town spent 27 months under a self-imposed ban on new water hookups because its system couldn't guarantee peak demand under a worst-case well-loss scenario, a ban the Water Commission only voted to lift in July 2025.
| Issue | What the data shows | Status |
|---|---|---|
| PFAS6 (combined, 2024 testing) | ND–2.56 ppt | Well below MA's 20 ppt limit; no violation |
| Lead (tap sampling, Sept. 2024) | 90th percentile 4 ppb; 2 of 34 sites above 15 ppb | Below the federal action level overall; no lead service lines town-wide |
| Manganese (Grassy Hole/I-86, post-filtration) | Historically high pre-2023; non-detectable in finished water since the new filtration facility came online | Resolved by 2023 capital project; legacy discoloration can still recur during high-flow events |
| New hookup moratorium | April 2023 – July 2025, tied to peak-demand supply margin | Lifted; new well in permitting, expected operational in 2–3 years |
Sources: Kingston Water Department 2023 & 2024 Annual Water Quality Reports (PWS ID MA4145000); Plymouth Independent reporting on the 2025 moratorium vote; see the full breakdown with citations on the Water data page.
