TUCKER ACRES MUTUAL WATER CO.

CALISTOGA, CA · ~200 people served

Check your exact address → CALISTOGA overview

100

Excellent

PurityRadar safety score

PWSID

CA2800516

State

California

City

CALISTOGA

Population served

200

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 2024. Official EPA record →

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Addressed

Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved

Monitoring & reporting · Total coliform began May 2013 Resolved

Monitoring & reporting · Total coliform began Sep 2012 Resolved

Monitoring & reporting · Arsenic began Oct 2008 Resolved

Monitoring & reporting · Total coliform began May 2008 Resolved

Monitoring & reporting · Total coliform began Feb 2008 Resolved

Monitoring & reporting · Total coliform began Sep 2007 Resolved

Monitoring & reporting · Total coliform began Apr 2001 Resolved

Monitoring & reporting · Total coliform began Nov 2000 Resolved

Monitoring & reporting · Total coliform began Oct 2000 Resolved

Recent enforcement actions

State action · SFL Nov 2024
State action · SOX Mar 2018
State action · SOX Aug 2014
State action · SFJ Aug 2014
State action · SOX Jul 2013
State action · SIA Jun 2013
State action · SOX Oct 2012
State action · SIA Oct 2012

This profile is built from EPA public records for system CA2800516 — 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.