WALNUT ACRES

STOCKTON, CA · ~106 people served

Check your exact address → STOCKTON overview

100

Excellent

PurityRadar safety score

PWSID

CA3901113

State

California

City

STOCKTON

Population served

106

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 2014. Official EPA record →

Monitoring & reporting · Total coliform began Sep 2014 Resolved

Monitoring & reporting · Total coliform began Apr 2003 Resolved

Other · EPA contaminant 7000 began Jul 2002 Resolved

Recent enforcement actions

State action · SIE Nov 2014
State action · SOX Nov 2014
State action · SOX May 2003
State action · SIE Apr 2003
State action · SOX Jul 2002

This profile is built from EPA public records for system CA3901113 — 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.