UNION PUBLIC UTILITY DISTRICT
California — Community Water System — PWSID: CA0510001
System Information
| PWSID | CA0510001 |
| System Name | UNION PUBLIC UTILITY DISTRICT |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | MURPHYS |
| ZIP Code | 95247 |
| Address | 339 MAIN STREET |
| Organization | SELF, JESSICA |
| Phone | 209-728-3651 |
Population & Service
| Population Served | 4,774 |
| Service Connections | 1,735 |
Drinking Water Violations (37)
This water system has 37 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .01 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .01 | Resolved | Mar 31, 2021 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .09 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .09 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2020 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .0643 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2006 | — | |
| Oct 1, 2005 | Dec 31, 2005 | MCL | Yes | No | .0839 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | .0908 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2005 | — | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .1008 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2005 | — | |
| Jan 1, 2005 | Mar 31, 2005 | MCL | Yes | No | .0868 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2005 | — | |
| Oct 1, 2004 | Dec 31, 2004 | MCL | Yes | No | .1073 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2004 | — | |
| Jul 1, 2001 | — | Other | No | No | — | — | — | Resolved | Nov 21, 2001 | — | |
| Jul 1, 2001 | — | Other | No | No | — | — | — | Resolved | Nov 21, 2001 | — | |
| Jul 1, 2001 | — | Other | No | No | — | — | — | Resolved | Nov 21, 2001 | — | |
| Oct 1, 1987 | Oct 31, 1987 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Oct 31, 1987 | — | |
| Oct 1, 1987 | Oct 31, 1987 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Oct 31, 1987 | — | |
| Oct 1, 1987 | Oct 31, 1987 | MR | No | Yes | — | 10 mg/L | — | Archived | Oct 31, 1987 | — | |
| Oct 1, 1987 | Oct 31, 1987 | Other | No | No | — | — | — | Archived | Oct 31, 1987 | — | |
| Oct 1, 1987 | Oct 31, 1987 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Oct 31, 1987 | — | |
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About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.