MURPHYS, CA · Calaveras County
UNION PUBLIC UTILITY DISTRICT Water System
Consumer Confidence Report status
UNION PUBLIC UTILITY DISTRICT 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 UNION PUBLIC UTILITY DISTRICT.
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)
- CA0510001
- System type
- Community Water System
- Population served
- 4,774
- Service connections
- 1,735
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
UNION PUBLIC UTILITY DISTRICT is one of 278 community water systems in California in the 3,301 to 10,000 people size category, serving 4,774 people from surface water.
As of August 1, 2026, its federal record holds 10 entries between 1987 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.
Of the 10, 4 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 inorganic chemicals, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2021 – March 31, 2021
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2005 – December 31, 2005
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
January 1, 2005 – March 31, 2005
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2004 – December 31, 2004
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2001 – November 21, 2001
ResolvedMonitoring, Regular
—Selenium
October 1, 1987 – October 31, 1987
ArchivedMonitoring, Regular
—Arsenic
October 1, 1987 – October 31, 1987
ArchivedNotification, Public
—No contaminant on record
October 1, 1987 – October 31, 1987
ArchivedMonitoring, Regular
—Fluoride
October 1, 1987 – October 31, 1987
ArchivedMonitoring, Regular
—Nitrate
October 1, 1987 – October 31, 1987
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2021 – March 31, 2021 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2005 – December 31, 2005 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2005 – March 31, 2005 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| October 1, 2004 – December 31, 2004 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| July 1, 2001 – November 21, 2001 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 1, 1987 – October 31, 1987 | Monitoring, Regular | Selenium | — | Archived |
| October 1, 1987 – October 31, 1987 | Monitoring, Regular | Arsenic | — | Archived |
| October 1, 1987 – October 31, 1987 | Notification, Public | — | — | Archived |
| October 1, 1987 – October 31, 1987 | Monitoring, Regular | Fluoride | — | Archived |
| October 1, 1987 – October 31, 1987 | Monitoring, Regular | Nitrate | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- April 7, 2022State Compliance achieved19 linked violations
- November 26, 2001State Violation/Reminder Notice1 linked violation
- September 30, 1985State Othergeneral compliance action — not tied to a specific violation on record
Common questions
Is UNION PUBLIC UTILITY DISTRICT required to publish a Consumer Confidence Report?
- Yes. UNION PUBLIC UTILITY DISTRICT 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 UNION PUBLIC UTILITY DISTRICT’s next Consumer Confidence Report due?
- UNION PUBLIC UTILITY DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UNION PUBLIC UTILITY DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for UNION PUBLIC UTILITY DISTRICT.
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
SELF, JESSICA
209-728-3651
MURPHYS, CA 95247