TREASURE ISLAND

BURLINGAME, CA · ~3,864 people served

Check your exact address → BURLINGAME overview

100

Excellent

PurityRadar safety score

PWSID

CA3810702

State

California

City

BURLINGAME

Population served

3,864

Primary source

SWP

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 Jan 1999. Official EPA record →

Monitoring & reporting · Total coliform began Dec 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 1997 Resolved

Recent enforcement actions

State action · SOX Jan 1999
State action · SIA Jan 1999
State action · SOX May 1997
State action · SFJ May 1997
State action · SOX Mar 1997
State action · SIA Mar 1997

This profile is built from EPA public records for system CA3810702 — 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.