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Water system · PWSID IL0430833

WARRENVILLE

WARRENVILLE, IL · ~12,350 people served

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

PWSID

IL0430833

State

Illinois

City

WARRENVILLE

Population served

12,350

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 Apr 2025). Levels in parts per trillion (ppt).

Lithium

31,700 ppt

limit —

No federal limit

Violations & enforcement

49

Violations on record

0

Unaddressed

0

Health-based

45

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring & reporting · Nitrate began Jan 2021 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2020 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SIA Jul 2025
  • State action · SIF Jun 2023
  • State action · SIF Jun 2023
  • State action · SIF Jun 2023
  • State action · SIF Jun 2023
  • State action · SOX Apr 2023
  • State action · SIE Feb 2023

This profile is built from EPA public records for system IL0430833 — 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.