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Water system · PWSID MA3199000

NEEDHAM WATER DEPT

NEEDHAM, MA · ~33,130 people served

Check your exact address → NEEDHAM overview
78
Good
PurityRadar safety score

PWSID

MA3199000

State

Massachusetts

City

NEEDHAM

Population served

33,130

Primary source

SWP

Score history

▼ 22 points — the score moved from 100 to 78 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 78

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 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFOA

Perfluorooctanoic acid

4 ppt

limit 4 ppt

Near EPA limit

Violations & enforcement

46

Violations on record

0

Unaddressed

3

Health-based

32

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2013. Official EPA record →

Monitoring & reporting · EPA contaminant 2976 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2990 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2984 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2989 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jul 2013 Resolved

Recent enforcement actions

  • State action · SOX Dec 2013
  • State action · SFJ Dec 2013
  • State action · SFL Jul 2012
  • State action · SOX May 2012
  • State action · SFJ Apr 2012
  • State action · SFO Jun 2010
  • State action · SFL Jun 2009
  • State action · SFL May 2008

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

2 stations · latest Sep 2021

0.8 · max 8.2 ug/l · 26

Copper

2 stations · latest Sep 2021

11.9 · max 41.7 ug/l · 26

Lead

2 stations · latest Sep 2021

1.42 · max 13.1 ug/l · 26

Manganese

2 stations · latest Sep 2021

25.9 · max 228 ug/l · 26

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system MA3199000 — 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.