OAKWOOD LAKE WATER DISTRICT-SUBDIVISION

STOCKTON, CA · ~1,479 people served

Check your exact address → STOCKTON overview

100

Excellent

PurityRadar safety score

PWSID

CA3910023

State

California

City

STOCKTON

Population served

1,479

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 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2014 Resolved

Monitoring & reporting · Total coliform began Jun 2001 Resolved

Max contaminant level (MCL) · Total coliform health-based began Mar 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 1994 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX Jul 2019
State action · SFL Jan 2014
State action · SFL Jul 2001
State action · SOX Jul 2001
EPA/federal action · EOX Mar 2000
State action · SOX Apr 1998
State action · SFJ Apr 1998
State action · SFJ Oct 1997

This profile is built from EPA public records for system CA3910023 — 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.