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Water system · PWSID CA2800532

VAILIMA ESTATES MUTUAL WATER

ST. HELENA, CA · ~25 people served

Check your exact address → ST. HELENA overview
100
Excellent
PurityRadar safety score

PWSID

CA2800532

State

California

City

ST. HELENA

Population served

25

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

14

Violations on record

0

Unaddressed

9

Health-based

30

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · Total coliform began Apr 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2014 Resolved
Monitoring & reporting · Total coliform began Oct 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2011 Resolved
Monitoring & reporting · Total coliform began Mar 2003 Resolved
Monitoring & reporting · Total coliform began Nov 2002 Resolved

Recent enforcement actions

  • State action · SOX Mar 2022
  • State action · SFL Nov 2021
  • State action · SOX May 2014
  • State action · SIA May 2014
  • State action · SOX Apr 2014
  • State action · SIA Apr 2014
  • State action · SOX Nov 2013
  • State action · SIA Nov 2013

This profile is built from EPA public records for system CA2800532 — 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.