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Water system · PWSID IL0990600

NAPLATE

OTTAWA, IL · ~465 people served

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

PWSID

IL0990600

State

Illinois

City

OTTAWA

Population served

465

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

58

Violations on record

0

Unaddressed

42

Health-based

186

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2014. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2011 Resolved
Other · EPA contaminant 7500 began Jul 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2011 Resolved
Monitoring & reporting · Uranium began Jan 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2010 Resolved
Other · EPA contaminant 7500 began Jul 2010 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2010 Resolved
Monitoring & reporting · Uranium began Jul 2010 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2010 Resolved

Recent enforcement actions

  • State action · SIF Jul 2014
  • State action · SIF Jul 2014
  • State action · SOX Feb 2014
  • State action · SOX Jan 2014
  • State action · SIE Jan 2014
  • State action · SIA Jan 2014
  • State action · SIE Jan 2014
  • State action · SIA Jan 2014

This profile is built from EPA public records for system IL0990600 — 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.