PWSID
WI2680205
State
Wisconsin
City
HARTLAND
Population served
9,212
Primary source
Groundwater
Score history
▼ 22 points — the score moved from 100 to 78 on Jun 18, 2026, as newly published EPA data was incorporated.
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 Nov 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.6 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
4.4 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
3.6 ppt
limit 10 ppt
PFBS
7.9 ppt
limit —
PFBA
5.1 ppt
limit —
PFPeA
4.6 ppt
limit —
PFHxA
3.6 ppt
limit —
Violations & enforcement
5
Violations on record
0
Unaddressed
2
Health-based
20
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2021. Official EPA record →
Recent enforcement actions
- State action · SOX May 2021
- State action · SIA Apr 2021
- State action · SFG Sep 2014
- State action · SIF Sep 2014
- State action · SOX Aug 2014
- State action · SIE Aug 2014
- State action · SIA Aug 2014
- State action · SOX Jul 2010
This profile is built from EPA public records for system WI2680205 — 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.