PWSID
MA2039000
State
Massachusetts
City
BOYLSTON
Population served
3,343
Primary source
Groundwater
Score history
▼ 20 points — the score moved from 100 to 80 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
6 ppt
limit 4 ppt
PFBS
3.6 ppt
limit —
Violations & enforcement
21
Violations on record
0
Unaddressed
11
Health-based
44
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jan 2025. Official EPA record →
Recent enforcement actions
- State action · SIE Jan 2025
- State action · SFJ Feb 2023
- State action · SOX Aug 2021
- State action · SFL Aug 2021
- State action · SOX Feb 2019
- State action · SFL Jul 2018
- State action · SFJ Jul 2017
- State action · SOX Nov 2015
This profile is built from EPA public records for system MA2039000 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.