WASHINGTON WATER DISTRICT
California - Community Water System - PWSID: CA2900523
System Information
| PWSID | CA2900523 |
| System Name | WASHINGTON WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 27, 1983 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | WASHINGTON |
| ZIP Code | 95986 |
| Address | P.O. Box # 34 |
| Organization | JACKSON, TINA |
| Phone | 530-265-4720 |
Population & Service
| Population Served | 330 |
| Service Connections | 115 |
Drinking Water Violations (61)
This water system has 61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | No | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | No | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Dec 1, 2008 | Dec 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2008 | - | |
| Dec 1, 2008 | Dec 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2008 | - | |
| Oct 1, 2007 | - | TT | Yes | No | - | - | - | Resolved | Jun 25, 2018 | - | |
| Oct 1, 2007 | - | TT | Yes | No | - | - | - | Resolved | Jun 25, 2018 | - | |
| Oct 1, 2007 | - | TT | Yes | No | - | - | - | Resolved | Jun 25, 2018 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 1984 | Sep 30, 1984 | Other | No | No | - | - | - | Archived | Sep 30, 1984 | - | |
| Aug 1, 1984 | Aug 31, 1984 | Other | No | No | - | - | - | Archived | Aug 31, 1984 | - | |
| Jul 1, 1984 | Jul 31, 1984 | Other | No | No | - | - | - | Archived | Jul 31, 1984 | - | |
| Jun 1, 1984 | Jun 30, 1984 | Other | No | No | - | - | - | Archived | Jun 30, 1984 | - | |
| May 1, 1984 | May 31, 1984 | Other | No | No | - | - | - | Archived | May 31, 1984 | - | |
| Apr 1, 1984 | Apr 30, 1984 | Other | No | No | - | - | - | Archived | Apr 30, 1984 | - | |
| Mar 1, 1984 | Mar 31, 1984 | Other | No | No | - | - | - | Archived | Mar 31, 1984 | - | |
| Feb 1, 1984 | Feb 29, 1984 | Other | No | No | - | - | - | Archived | Feb 29, 1984 | - | |
| Jan 1, 1984 | Jan 31, 1984 | Other | No | No | - | - | - | Archived | Jan 31, 1984 | - | |
| Dec 1, 1983 | Dec 31, 1983 | Other | No | No | - | - | - | Archived | Dec 31, 1983 | - | |
| Nov 1, 1983 | Nov 30, 1983 | Other | No | No | - | - | - | Archived | Nov 30, 1983 | - | |
| Oct 1, 1983 | Oct 31, 1983 | Other | No | No | - | - | - | Archived | Oct 31, 1983 | - | |
| Sep 1, 1983 | Sep 30, 1983 | Other | No | No | - | - | - | Archived | Sep 30, 1983 | - | |
| Aug 1, 1983 | Aug 31, 1983 | Other | No | No | - | - | - | Archived | Aug 31, 1983 | - | |
| Jul 1, 1983 | Jul 31, 1983 | Other | No | No | - | - | - | Archived | Jul 31, 1983 | - | |
| Jun 1, 1983 | Jun 30, 1983 | Other | No | No | - | - | - | Archived | Jun 30, 1983 | - | |
| May 1, 1983 | May 31, 1983 | Other | No | No | - | - | - | Archived | May 31, 1983 | - | |
| Apr 1, 1983 | Apr 30, 1983 | Other | No | No | - | - | - | Archived | Apr 30, 1983 | - | |
| Mar 1, 1983 | Mar 31, 1983 | Other | No | No | - | - | - | Archived | Mar 31, 1983 | - |
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.