DELAVAN

DELAVAN, IL · ~1,743 people served

Check your exact address → DELAVAN overview

100

Excellent

PurityRadar safety score

PWSID

IL1790150

State

Illinois

City

DELAVAN

Population served

1,743

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

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved

Monitoring & reporting · Total coliform began Sep 2010 Resolved

Monitoring & reporting · EPA contaminant 1006 began Jul 2010 Resolved

Recent enforcement actions

State action · SIF Jul 2025
State action · SOX Nov 2024
State action · SIE Oct 2024
State action · SIA Oct 2024
State action · SOX Oct 2024
State action · SIF May 2023
State action · SOX Nov 2022
State action · SIA Jul 2022

This profile is built from EPA public records for system IL1790150 — 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.