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Water system · PWSID WI7370163

WESTON MUNICIPAL UTILITIES

WESTON, WI · ~16,000 people served

Check your exact address → WESTON overview
46
Fair
PurityRadar safety score

PWSID

WI7370163

State

Wisconsin

City

WESTON

Population served

16,000

Primary source

Groundwater

Score history

▼ 54 points — the score moved from 100 to 46 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 46

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

PFOA

Perfluorooctanoic acid

5.6 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFOS

Perfluorooctanesulfonic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFHxS

Perfluorohexanesulfonic acid

4.6 ppt

limit 10 ppt

Below EPA limit

PFBS

22 ppt

limit —

No federal limit

PFBA

5.4 ppt

limit —

No federal limit

6:2 FTS

5.2 ppt

limit —

No federal limit

PFPeA

4.5 ppt

limit —

No federal limit

PFHxA

3.6 ppt

limit —

No federal limit

Violations & enforcement

53

Violations on record

0

Unaddressed

0

Health-based

33

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2024. Official EPA record →

Monitoring & reporting · Nitrate began Apr 2023 Resolved
Other · EPA contaminant 7500 began Oct 2009 Resolved
Monitoring & reporting · Uranium began Jul 2009 Resolved
Monitoring & reporting · Gross alpha began Jul 2009 Resolved
Monitoring & reporting · EPA contaminant 4030 began Jul 2009 Resolved
Other · EPA contaminant 7000 began Jul 2000 Resolved
Monitoring & reporting · Nitrate began Jan 1996 Resolved
Monitoring & reporting · Nitrate began Jan 1996 Resolved
Monitoring & reporting · Nitrate began Jan 1996 Resolved
Monitoring & reporting · Total coliform began Sep 1994 Resolved
Monitoring & reporting · EPA contaminant 2987 began Jan 1994 Resolved
Monitoring & reporting · EPA contaminant 2985 began Jan 1994 Resolved

Recent enforcement actions

  • State action · SIF Jun 2024
  • State action · SOX Jul 2023
  • State action · SIE Jul 2023
  • State action · SIA Jul 2023
  • State action · SO6 Feb 2011
  • State action · SO8 Nov 2010
  • State action · SOX May 2010
  • State action · SIA Nov 2009

This profile is built from EPA public records for system WI7370163 — 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.