MAHER RD WS #05

ROYAL OAKS, CA · ~48 people served

Check your exact address → ROYAL OAKS overview

100

Excellent

PurityRadar safety score

PWSID

CA2700638

State

California

City

ROYAL OAKS

Population served

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 →

Monitoring & reporting · Lead & Copper Rule began Jan 2020 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jul 2019 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jul 2018 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jan 2018 Unaddressed

Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved

Monitoring & reporting · Total coliform began Oct 2012 Resolved

Monitoring & reporting · Total coliform began Sep 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2012 Resolved

Monitoring & reporting · Total coliform began Sep 2012 Resolved

Monitoring & reporting · Total coliform began Jul 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2010 Resolved

Recent enforcement actions

State action · SIA Feb 2015
State action · SIA Feb 2015
State action · SIA Feb 2015
State action · SIA Feb 2015
State action · SIA Feb 2015
State action · SIE Feb 2015
State action · SIE Feb 2015
State action · SIA Feb 2015

This profile is built from EPA public records for system CA2700638 — 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.