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Water system · PWSID IL0890110

WASCO SD

WASCO, IL · ~4,000 people served

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

PWSID

IL0890110

State

Illinois

City

WASCO

Population served

4,000

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

Lithium

17,000 ppt

limit —

No federal limit

Violations & enforcement

20

Violations on record

0

Unaddressed

14

Health-based

65

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2022. Official EPA record →

Monitoring & reporting · Combined radium-226/228 began Jul 2022 Resolved
Monitoring & reporting · Uranium began Jul 2022 Resolved
Monitoring & reporting · Uranium began Jan 2021 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2005 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2005 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2004 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2004 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2004 Resolved
Monitoring & reporting · Gross alpha began Jan 2004 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2004 Resolved
Monitoring & reporting · Uranium began Jan 2004 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2004 Resolved

Recent enforcement actions

  • State action · SOX Oct 2022
  • State action · SIA Oct 2022
  • State action · SIA Oct 2022
  • State action · SIA Oct 2022
  • State action · SOX Jan 2022
  • State action · SIA Jan 2022
  • State action · SIA Jan 2022
  • State action · SIF Aug 2005

This profile is built from EPA public records for system IL0890110 — 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.