SUPERIOR WATER LIGHT & POWER COMPANY

SUPERIOR, WI · ~26,084 people served

Check your exact address → SUPERIOR overview

100

Excellent

PurityRadar safety score

PWSID

WI8160147

State

Wisconsin

City

SUPERIOR

Population served

26,084

Primary source

Surface water

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2025. Official EPA record →

Other · EPA contaminant 7500 began Oct 2024 Unaddressed

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2018 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2014 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2014 Resolved

Monitoring & reporting · Bromate began Jul 2008 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1996 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1995 Resolved

Recent enforcement actions

State action · SOX Mar 2025
State action · SIF May 2018
State action · SOX Apr 2018
State action · SIE Apr 2018
State action · SOX Oct 2015
State action · SIF Jul 2015
State action · SIE Nov 2014
State action · SIA Nov 2014

This profile is built from EPA public records for system WI8160147 — 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.