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Water system · PWSID MA4122000

HANOVER WATER DEPT

HANOVER, MA · ~14,984 people served

Check your exact address → HANOVER overview
72
Good
PurityRadar safety score

PWSID

MA4122000

State

Massachusetts

City

HANOVER

Population served

14,984

Primary source

GU

Score history

▼ 28 points — the score moved from 100 to 72 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 72

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

PFOA

Perfluorooctanoic acid

5.5 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFOS

Perfluorooctanesulfonic acid

4.4 ppt

limit 4 ppt

Above EPA limit · 1.1×

Lithium

9,530 ppt

limit —

No federal limit

PFBA

8 ppt

limit —

No federal limit

PFPeA

5.9 ppt

limit —

No federal limit

PFHxA

4.5 ppt

limit —

No federal limit

PFHpA

3.5 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

6

Violations on record

0

Unaddressed

3

Health-based

14

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2019. Official EPA record →

Monitoring & reporting · Total coliform began May 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2010 Resolved
Other · EPA contaminant 7000 began Jul 2010 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2000 Resolved

Recent enforcement actions

  • State action · SFJ Sep 2019
  • State action · SFJ May 2018
  • State action · SFJ Nov 2015
  • State action · SOX Aug 2015
  • State action · SFJ Aug 2015
  • State action · SOX Dec 2011
  • State action · SFL Nov 2011
  • State action · SFL Feb 2011

This profile is built from EPA public records for system MA4122000 — 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.