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Water system · PWSID WI2650066

LAKE GENEVA UTILITY COMMISSION

Lake Geneva, WI · ~7,107 people served

Check your exact address → Lake Geneva overview
90
Excellent
PurityRadar safety score

PWSID

WI2650066

State

Wisconsin

City

Lake Geneva

Population served

7,107

Primary source

Groundwater

Score history

▼ 10 points — the score moved from 100 to 90 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 90

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 Sep 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.3 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

3.6 ppt

limit 10 ppt

Below EPA limit

PFBS

5.5 ppt

limit —

No federal limit

Violations & enforcement

49

Violations on record

0

Unaddressed

5

Health-based

78

Enforcement actions

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

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2022 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2996 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2018 Resolved
Monitoring & reporting · Nitrate began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2018 Resolved

Recent enforcement actions

  • State action · SOX Jul 2023
  • State action · SIF May 2023
  • State action · SIA Mar 2023
  • State action · SIE Mar 2023
  • State action · SIF Jul 2019
  • State action · SIF Jul 2019
  • State action · SIF Jul 2019
  • State action · SOX Jul 2019

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

Nitrate

1 station · latest May 2021

0.064 · max 0.064 mg/l as N · 2

Arsenic

1 station · latest May 2021

2.8 · max 2.8 ug/l · 1

Fluoride

1 station · latest May 2021

0.14 · max 0.14 mg/l · 1

Manganese

1 station · latest May 2021

325 · max 325 ug/l · 1

Uranium

1 station · latest May 2021

7.36 · max 7.36 ug/l · 1

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 WI2650066 — 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.