ADVENTIST HEALTH - ST. HELENA HOSPITAL

ST. HELENA, CA · ~817 people served

Check your exact address → ST. HELENA overview

100

Excellent

PurityRadar safety score

PWSID

CA2800625

State

California

City

ST. HELENA

Population served

817

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 1996. Official EPA record →

Monitoring & reporting · Total coliform began Oct 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1996 Resolved

Recent enforcement actions

State action · SOX Nov 1996
State action · SFJ Nov 1996
State action · SFJ Oct 1996
State action · SOX Oct 1996

This profile is built from EPA public records for system CA2800625 — 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.