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Water system · PWSID WI1130223

DEERFIELD WATERWORKS

DEERFIELD, WI · ~2,510 people served

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

PWSID

WI1130223

State

Wisconsin

City

DEERFIELD

Population served

2,510

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

9

Violations on record

0

Unaddressed

6

Health-based

43

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2015. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2012 Resolved
Monitoring & reporting · Total coliform began Oct 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1994 Resolved
Monitoring & reporting · Total coliform began Feb 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1991 Resolved

Recent enforcement actions

  • State action · SOX Jul 2015
  • State action · SO8 Dec 2012
  • State action · SIF Jan 2004
  • State action · SFG Dec 2003
  • State action · SOX Nov 2003
  • State action · SIA Nov 2003
  • State action · SIE Nov 2003
  • State action · SIF Sep 1998

This profile is built from EPA public records for system WI1130223 — 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.