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Water system · PWSID IL1170200

CHESTERFIELD

CHESTERFIELD, IL · ~170 people served

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

PWSID

IL1170200

State

Illinois

City

CHESTERFIELD

Population served

170

Primary source

SWP

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

20

Violations on record

0

Unaddressed

7

Health-based

61

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2019. Official EPA record →

Monitoring · Lead & Copper Rule began Feb 2019 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2019 Resolved
Treatment technique · EPA contaminant 0300 health-based began Aug 2015 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2015 Resolved
Treatment technique · EPA contaminant 0300 health-based began May 2015 Resolved
Treatment technique · EPA contaminant 0300 health-based began May 2015 Resolved
Monitoring & reporting · Total coliform began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2015 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Other · EPA contaminant 7500 began Jun 2014 Resolved

Recent enforcement actions

  • State action · SOX Apr 2019
  • State action · SIF Apr 2019
  • State action · SIF Apr 2019
  • State action · SIE Mar 2019
  • State action · SIA Mar 2019
  • State action · SIE Mar 2019
  • State action · SIA Mar 2019
  • State action · SIF Dec 2015

This profile is built from EPA public records for system IL1170200 — 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.