Public Water Partners

SONORA, CA · Tuolumne County

TUD - TUOLUMNE WATER SYSTEM Water System

Consumer Confidence Report status

TUD - TUOLUMNE WATER SYSTEM 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 TUD - TUOLUMNE WATER SYSTEM.

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)
CA5510003
System type
Community Water System
Population served
1,761
Service connections
709
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

TUD - TUOLUMNE WATER SYSTEM is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 1,761 people from surface water.

As of August 1, 2026, its federal record holds 1 entry in 1980, all of which EPA lists as closed. Nothing has been added since 1980.

None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Miscellaneous Other Rules.

Violation history

  • Notification, Public

    —

    No contaminant on record

    July 28, 1980 – August 27, 1980

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is TUD - TUOLUMNE WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. TUD - TUOLUMNE WATER SYSTEM 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 TUD - TUOLUMNE WATER SYSTEM’s next Consumer Confidence Report due?

TUD - TUOLUMNE WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does TUD - TUOLUMNE WATER SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for TUD - TUOLUMNE WATER SYSTEM.

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

HALL, ERIC

209-532-5536

SONORA, CA 95370