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Water system · PWSID WI6270244

BLACK RIVER FALLS WATERWORKS

Black River Falls, WI · ~3,608 people served

Check your exact address → Black River Falls overview
100
Excellent
PurityRadar safety score

PWSID

WI6270244

State

Wisconsin

City

Black River Falls

Population served

3,608

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

PFBA

6.8 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

1

Unaddressed

4

Health-based

40

Enforcement actions

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

Other · EPA contaminant 7500 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Monitoring · Lead & Copper Rule began Apr 2024 Resolved
Monitoring · Lead & Copper Rule began Apr 2018 Resolved
Monitoring & reporting · Total coliform began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2012 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved
Monitoring & reporting · Total coliform began Jul 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1993 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Jun 2025
  • State action · SOX May 2025
  • State action · SIF May 2024
  • State action · SOX May 2024
  • State action · SIA May 2024
  • State action · SIE May 2024
  • State action · SIF May 2018
  • State action · SOX May 2018

This profile is built from EPA public records for system WI6270244 — 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.