VILLA CEREZOS

LOS ALTOS, CA · ~200 people served

Check your exact address → LOS ALTOS overview

100

Excellent

PurityRadar safety score

PWSID

CA3900596

State

California

City

LOS ALTOS

Population served

200

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 →

Other · EPA contaminant 7000 began Jul 2014 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Other · EPA contaminant 7000 began Jul 2009 Resolved

Other · EPA contaminant 7000 began Jul 2008 Resolved

Other · EPA contaminant 7000 began Jul 2002 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2000 Resolved

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

Recent enforcement actions

State action · SIA Nov 2014
State action · SOX Nov 2014
State action · SOX Jul 2013
State action · SIE Jul 2013
State action · SOX Jul 2012
State action · SIA Jul 2012
State action · SOX Jul 2010
State action · SOX Jul 2009

This profile is built from EPA public records for system CA3900596 — 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.