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Water system · PWSID CA5000263

OASIS INVESTMENTS

TURLOCK, CA · ~75 people served

Check your exact address → TURLOCK overview
100
Excellent
PurityRadar safety score

PWSID

CA5000263

State

California

City

TURLOCK

Population served

75

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

11

Violations on record

0

Unaddressed

3

Health-based

16

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2020 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2008 Resolved
Monitoring & reporting · EPA contaminant 2931 began Apr 2005 Resolved
Monitoring & reporting · Total coliform began Oct 2003 Resolved
Monitoring & reporting · Total coliform began Oct 1999 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Jan 2025
  • State action · SFL Jan 2023
  • State action · SOX Oct 2009
  • State action · SIA Sep 2009
  • State action · SOX Oct 2008
  • State action · SOX Sep 2008
  • State action · SIA Sep 2008
  • State action · SIA Aug 2008

This profile is built from EPA public records for system CA5000263 — 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.