PORTAGE WATERWORKS

PORTAGE, WI · ~10,437 people served

Check your exact address → PORTAGE overview

Excellent

PurityRadar safety score

PWSID

WI1110039

State

Wisconsin

City

PORTAGE

Population served

10,437

Primary source

Groundwater

Score history

▼ 4 points — the score moved from 100 to 96 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 96

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

PFHxS

Perfluorohexanesulfonic acid

7.2 ppt

limit 10 ppt

Near EPA limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Max contaminant level (MCL) · Total coliform health-based began Dec 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 2001 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2000 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 1994 Resolved

Monitoring & reporting · EPA contaminant 2020 began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 2036 began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 2034 began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 2033 began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jan 1993 Resolved

Recent enforcement actions

State action · SIF Jan 2004
State action · SFG Jan 2004
State action · SOX Dec 2003
State action · SIA Dec 2003
State action · SIE Dec 2003
State action · SIF Jun 2001
State action · SIA Apr 2001
State action · SIE Apr 2001

This profile is built from EPA public records for system WI1110039 — 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.