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Water system · PWSID ME0091670

YARMOUTH WATER DISTRICT

YARMOUTH, ME · ~8,000 people served

Check your exact address → YARMOUTH overview
67
Fair
PurityRadar safety score

PWSID

ME0091670

State

Maine

City

YARMOUTH

Population served

8,000

Primary source

Groundwater

Score history

▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 67

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 Oct 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

9.2 ppt

limit 4 ppt

Above EPA limit · 2.3×

PFHxA

8.1 ppt

limit —

No federal limit

PFPeA

7.1 ppt

limit —

No federal limit

PFBA

5.7 ppt

limit —

No federal limit

PFHpA

4.5 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

7

Health-based

41

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2025. Official EPA record →

Monitoring · Lead & Copper Rule began Dec 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2022 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2002 Resolved

Recent enforcement actions

  • State action · SIF Sep 2025
  • State action · SFJ Feb 2025
  • State action · SIE Feb 2025
  • State action · SOX Jan 2025
  • State action · SOX Aug 2023
  • State action · SIF Jul 2023
  • State action · SFJ Jan 2023
  • State action · SIE Jan 2023

This profile is built from EPA public records for system ME0091670 — 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.