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Water system · PWSID IL0990550

MENDOTA

MENDOTA, IL · ~6,926 people served

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

PWSID

IL0990550

State

Illinois

City

MENDOTA

Population served

6,926

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

Lithium

27,000 ppt

limit —

No federal limit

Violations & enforcement

29

Violations on record

1

Unaddressed

24

Health-based

105

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed
Reporting · EPA contaminant 5200 began Jul 2025 Resolved
Other · EPA contaminant 7000 began Jul 2025 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2021 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2020 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2008 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2007 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2007 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2007 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2007 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2006 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SIA Aug 2025
  • State action · SIA Jul 2025
  • State action · SIE Jul 2025
  • State action · SIE Jul 2025
  • State action · SIA Jul 2025
  • State action · SOX Jul 2025
  • State action · SIF Jul 2021

This profile is built from EPA public records for system IL0990550 — 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.