PWSID
WI6170261
State
Wisconsin
City
COLFAX
Population served
1,102
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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
2
Violations on record
0
Unaddressed
1
Health-based
17
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Dec 2019. Official EPA record →
Recent enforcement actions
- State action · SIF Dec 2019
- State action · SOX Dec 2019
- State action · SIE Dec 2019
- State action · SIA Dec 2019
- State action · SIF Jan 2012
- State action · SOX Dec 2011
- State action · SIA Dec 2011
- State action · SIE Dec 2011
This profile is built from EPA public records for system WI6170261 — 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.