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Water system · PWSID CA5010014

OAKDALE, CITY OF

OAKDALE, CA · ~23,235 people served

Check your exact address → OAKDALE overview
85
Excellent
PurityRadar safety score

PWSID

CA5010014

State

California

City

OAKDALE

Population served

23,235

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

7

Violations on record

0

Unaddressed

5

Health-based

13

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Addressed
Reporting · EPA contaminant 5200 began Oct 2024 Addressed
Max contaminant level (MCL) · Total coliform health-based began Aug 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1995 Resolved
Monitoring & reporting · Total coliform began Sep 1993 Resolved

Recent enforcement actions

  • EPA/federal action · EFL Jan 2026
  • State action · SOX Sep 2009
  • State action · SOX Aug 2009
  • State action · SFL Aug 2009
  • State action · SOX Feb 2005
  • State action · SFL Feb 2005
  • State action · SOX Feb 2005
  • EPA/federal action · EOX Mar 2000

This profile is built from EPA public records for system CA5010014 — 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.