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Water system · PWSID IL0971950

WINTHROP HARBOR

WINTHROP HARBOR, IL · ~6,565 people served

Check your exact address → WINTHROP HARBOR overview
100
Excellent
PurityRadar safety score

PWSID

IL0971950

State

Illinois

City

WINTHROP HARBOR

Population served

6,565

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

27

Violations on record

6

Unaddressed

1

Health-based

66

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Jul 2024 Unaddressed
Other · EPA contaminant 7000 began Jul 2023 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Dec 2022 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Unaddressed
Other · EPA contaminant 7500 began Oct 2021 Unaddressed
Other · EPA contaminant 7500 began Jan 2025 Resolved
Other · EPA contaminant 7500 began Oct 2024 Resolved
Other · EPA contaminant 7500 began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2023 Resolved

Recent enforcement actions

  • State action · SIA Aug 2025
  • State action · SIA Feb 2025
  • State action · SIF Feb 2025
  • State action · SOX Jan 2025
  • State action · SIF Dec 2024
  • State action · SIF Dec 2024
  • State action · SIA Nov 2024
  • State action · SIA Nov 2024

This profile is built from EPA public records for system IL0971950 — 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.