PRAIRIE PATH WATER COMPANY-CLARENDON

ST. CHARLES, IL · ~850 people served

Check your exact address → ST. CHARLES overview

100

Excellent

PurityRadar safety score

PWSID

IL0435300

State

Illinois

City

ST. CHARLES

Population served

850

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

Lithium

42,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Other · EPA contaminant 7000 began Jul 2023 Resolved

Recent enforcement actions

State action · SIF Aug 2025
State action · SIE Jul 2025
State action · SIA Jul 2025
State action · SOX Apr 2025
State action · SOX Jun 2024
State action · SIF Apr 2024
State action · SIA Dec 2023
State action · SOX May 2023

This profile is built from EPA public records for system IL0435300 — 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.