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Water system · PWSID WI8260120

MERCER SANITARY DISTRICT

Mercer, WI · ~760 people served

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

PWSID

WI8260120

State

Wisconsin

City

Mercer

Population served

760

Primary source

Groundwater

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

23

Violations on record

0

Unaddressed

0

Health-based

21

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2023. Official EPA record →

Monitoring · Lead & Copper Rule began Feb 2023 Resolved
Monitoring · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · Total coliform began Nov 1996 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 1993 Resolved

Recent enforcement actions

  • State action · SOX Mar 2023
  • State action · SIF Mar 2023
  • State action · SIA Mar 2023
  • State action · SIE Mar 2023
  • State action · SIF Nov 2021
  • State action · SIE Nov 2021
  • State action · SIA Nov 2021
  • State action · SOX Nov 2021

This profile is built from EPA public records for system WI8260120 — 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.