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Water system · PWSID 055295401

LAC DU FLAMBEAU

LAC DU FLAMBEAU, WI · ~2,962 people served

Check your exact address → LAC DU FLAMBEAU overview
100
Excellent
PurityRadar safety score

PWSID

055295401

State

Wisconsin

City

LAC DU FLAMBEAU

Population served

2,962

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

Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).

PFBS

8.2 ppt

limit —

No federal limit

Violations & enforcement

8

Violations on record

0

Unaddressed

1

Health-based

11

Enforcement actions

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

Reporting · Lead & Copper Rule began Oct 2023 Resolved
Monitoring & reporting · EPA contaminant 1085 began Jan 2017 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2012 Resolved
Monitoring & reporting · Fluoride began Jan 2011 Resolved
Monitoring & reporting · Fluoride began Jan 2011 Resolved
Monitoring & reporting · Gross alpha began Jan 2008 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2008 Resolved
Monitoring & reporting · Uranium began Jan 2008 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Nov 2023
  • EPA/federal action · EIE Nov 2023
  • EPA/federal action · EIA Nov 2023
  • EPA/federal action · EOX Mar 2021
  • EPA/federal action · EIF Dec 2020
  • EPA/federal action · EIA Feb 2020
  • EPA/federal action · EIE Feb 2020
  • EPA/federal action · EOX Feb 2017

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Atrazine

1 station · latest May 2021

11.1 · max 11.6 ng/l · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system 055295401 — 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.