Home/ Directory/ WI/ KNOLLCREST

Water system · PWSID WI2681104

KNOLLCREST

MIDDLETON, WI · ~66 people served

Check your exact address → MIDDLETON overview
100
Excellent
PurityRadar safety score

PWSID

WI2681104

State

Wisconsin

City

MIDDLETON

Population served

66

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

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

88

Violations on record

0

Unaddressed

5

Health-based

144

Enforcement actions

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

Max contaminant level (MCL) · EPA contaminant 2039 health-based began Aug 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved
Max contaminant level (MCL) · EPA contaminant 2039 health-based began Jan 2011 Resolved
Max contaminant level (MCL) · EPA contaminant 2039 health-based began Oct 2010 Resolved
Max contaminant level (MCL) · EPA contaminant 2039 health-based began Jul 2010 Resolved
Max contaminant level (MCL) · EPA contaminant 2039 health-based began Apr 2010 Resolved
Other · EPA contaminant 7500 began Jan 2005 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2005 Resolved
Monitoring & reporting · Total coliform began Sep 2003 Resolved
Monitoring & reporting · Total coliform began Jun 2001 Resolved
Monitoring & reporting · Antimony began Jan 2000 Resolved
Monitoring & reporting · Chromium (total) began Jan 2000 Resolved

Recent enforcement actions

  • State action · SOX Feb 2023
  • State action · SIF Mar 2022
  • State action · SIF Dec 2021
  • State action · SIB Dec 2021
  • State action · SFJ Dec 2021
  • State action · SIF Sep 2021
  • State action · SIE Sep 2021
  • State action · SIA Mar 2021

This profile is built from EPA public records for system WI2681104 — 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.