STOCKTON

STOCKTON, IL · ~1,728 people served

Check your exact address → STOCKTON overview

100

Excellent

PurityRadar safety score

PWSID

IL0850450

State

Illinois

City

STOCKTON

Population served

1,728

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 Nov 2022. Official EPA record →

Monitoring & reporting · Uranium began Jul 2022 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2979 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2980 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2982 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2984 began Jul 1992 Resolved

Monitoring & reporting · EPA contaminant 2987 began Jul 1992 Resolved

Recent enforcement actions

State action · SOX Nov 2022
State action · SIA Oct 2022
State action · SIA Oct 2022
State action · SOX May 1993
State action · SIE Jul 1992
State action · SIA Jul 1992
State action · SIE Oct 1991
State action · SIA Oct 1991

This profile is built from EPA public records for system IL0850450 — 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.