PSMCSD - VIERRA ESTATES WS

ROYAL OAKS, CA · ~164 people served

Check your exact address → ROYAL OAKS overview

100

Excellent

PurityRadar safety score

PWSID

CA2702007

State

California

City

ROYAL OAKS

Population served

164

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 Feb 2015. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 2005 Resolved

Monitoring & reporting · Nitrate began Apr 2005 Resolved

Monitoring & reporting · Nitrate began Oct 2004 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 2002 Resolved

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

Recent enforcement actions

State action · SFL Feb 2015
State action · SIE Feb 2015
State action · SIA Feb 2015
State action · SIE Feb 2015
State action · SOX Jan 2006
State action · SOX Jan 2006
State action · SOX Nov 2005
State action · SIA Oct 2005

This profile is built from EPA public records for system CA2702007 — 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.