CITY OF ATWATER
California — Community Water System — PWSID: CA2410001
System Information
| PWSID | CA2410001 |
| System Name | CITY OF ATWATER |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | ATWATER |
| ZIP Code | 95301 |
| Address | 470 Aviator Drive |
| Organization | VINSON, JUSTIN |
| Phone | 209-357-6370 |
Population & Service
| Population Served | 29,479 |
| Service Connections | 8,502 |
Drinking Water Violations (13)
This water system has 13 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, 2014 | Dec 31, 2014 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2014 | Nitrate Rule |
| Jan 1, 2014 | Dec 31, 2014 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2014 | Nitrate Rule |
| Jan 1, 2013 | Dec 31, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | Nitrate Rule |
| Jan 1, 2013 | Dec 31, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | Nitrate Rule |
| Jan 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 28, 2005 | Lead and Copper Rule |
| Jan 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 28, 2005 | Lead and Copper Rule |
| Feb 1, 2002 | Feb 28, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2002 | Total Coliform Rule |
| Feb 1, 2002 | Feb 28, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2002 | Total Coliform Rule |
| Nov 1, 2000 | Nov 30, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2000 | Total Coliform Rule |
| Nov 1, 2000 | Nov 30, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2000 | Total Coliform Rule |
| Jan 2, 1996 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 3, 2015 | Lead and Copper Rule |
| Jan 2, 1996 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 3, 2015 | Lead and Copper Rule |
| Sep 1, 1992 | Sep 30, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1992 | Total Coliform Rule |
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.