Water system · PWSID MA3073000
DEDHAM WESTWOOD WATER DIST.
PWSID
MA3073000
State
Massachusetts
City
DEDHAM
Population served
41,630
Primary source
SWP
Score history
▼ 35 points — the score moved from 100 to 65 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 Jul 2025). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
6 ppt
limit 4 ppt
PFOS
Perfluorooctanesulfonic acid
5.1 ppt
limit 4 ppt
PFHxA
4.1 ppt
limit —
PFPeA
3.9 ppt
limit —
Violations & enforcement
1
Violations on record
0
Unaddressed
1
Health-based
9
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2025. Official EPA record →
Recent enforcement actions
- State action · SFJ May 2025
- State action · SOX Nov 2021
- State action · SFL Oct 2021
- State action · SIE Jul 2017
- State action · SIE Jul 2013
- State action · SFL Jul 2000
- State action · SF5 Jul 1999
- State action · SIA Sep 1981
This profile is built from EPA public records for system MA3073000 — 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.