STURGEON BAY WATERWORKS

STURGEON BAY, WI · ~9,700 people served

Check your exact address → STURGEON BAY overview

Good

PurityRadar safety score

PWSID

WI4150526

State

Wisconsin

City

STURGEON BAY

Population served

9,700

Primary source

Groundwater

Score history

▼ 25 points — the score moved from 100 to 75 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 75

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 Nov 2023). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

13 ppt

limit 10 ppt

Above EPA limit · 1.3×

PFOS

Perfluorooctanesulfonic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2004. Official EPA record →

Monitoring & reporting · EPA contaminant 1011 began Apr 2004 Resolved

Recent enforcement actions

State action · SIF Jun 2004
State action · SIF Jun 2004
State action · SIF Jun 2004
State action · SIA Jun 2004
State action · SIA Jun 2004
State action · SIE Jun 2004
State action · SIE Jun 2004
State action · SIA Jun 2004

This profile is built from EPA public records for system WI4150526 — 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.