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Water system · PWSID WI1280115

WATERLOO WATERWORKS

WATERLOO, WI · ~3,520 people served

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

PWSID

WI1280115

State

Wisconsin

City

WATERLOO

Population served

3,520

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

13

Violations on record

0

Unaddressed

5

Health-based

50

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2023. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Oct 2019 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 2018 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2017 Resolved
Other · EPA contaminant 7500 began Jul 2007 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1993 Resolved

Recent enforcement actions

  • State action · SOX Nov 2023
  • State action · SIA Oct 2023
  • State action · SIF Dec 2020
  • State action · SIA Nov 2020
  • State action · SOX Nov 2020
  • State action · SIE Nov 2020
  • State action · SIA Oct 2018
  • State action · SIE Oct 2018

This profile is built from EPA public records for system WI1280115 — 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.