Public Water Partners

HOLLISTER, CA · San Benito County

COMSTOCK MUTUAL WATER COMPANY Water System

Consumer Confidence Report status

COMSTOCK MUTUAL WATER COMPANY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for COMSTOCK MUTUAL WATER COMPANY.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID)
CA3500912
System type
Community Water System
Population served
100
Service connections
33
Ownership
privately owned
Water source
groundwater (wells)

COMSTOCK MUTUAL WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 100 people from groundwater.

As of August 1, 2026, its federal record holds 1 entry in 2009, all of which EPA lists as closed. Nothing has been added since 2009.

All 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules.

Violation history

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 2009 – August 31, 2009

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is COMSTOCK MUTUAL WATER COMPANY required to publish a Consumer Confidence Report?

Yes. COMSTOCK MUTUAL WATER COMPANY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is COMSTOCK MUTUAL WATER COMPANY’s next Consumer Confidence Report due?

COMSTOCK MUTUAL WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does COMSTOCK MUTUAL WATER COMPANY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for COMSTOCK MUTUAL WATER COMPANY.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

CAMACHO, TIM

408-204-8121

HOLLISTER, CA 95023