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Water system · PWSID OH2000903

AYERSVILLE WATER AND SEWER DISTRICT

DEFIANCE, OH · ~2,372 people served

Check your exact address → DEFIANCE overview
100
Excellent
PurityRadar safety score

PWSID

OH2000903

State

Ohio

City

DEFIANCE

Population served

2,372

Primary source

SWP

Score history

No change since tracking began Jun 18, 2026.

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

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

38

Violations on record

1

Unaddressed

24

Health-based

107

Enforcement actions

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

Other · EPA contaminant 7000 began Sep 2018 Unaddressed
Other · EPA contaminant 7000 began Jul 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2021 Resolved
Other · EPA contaminant 7000 began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2019 Resolved

Recent enforcement actions

  • State action · SOX Jun 2025
  • State action · SIA Jul 2024
  • State action · SOX Oct 2022
  • State action · SIF Aug 2022
  • State action · SIA Aug 2022
  • State action · SIE Aug 2022
  • State action · SIF Jun 2022
  • State action · SIE May 2022

This profile is built from EPA public records for system OH2000903 — 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.