SONOMA STATE UNIVERSITY
California — Community Water System — PWSID: CA4910027
System Information
| PWSID | CA4910027 |
| System Name | SONOMA STATE UNIVERSITY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 31, 1986 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | ROHNERT PARK |
| ZIP Code | 94928 |
| Address | 1801 East Cotati Avenue |
| Organization | BRUNETTA, MISSY |
| Phone | 707-664-3408 |
Population & Service
| Population Served | 10,986 |
| Service Connections | 93 |
Drinking Water Violations (22)
This water system has 22 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, 2017 | — | MR | No | No | — | TT | — | Resolved | Aug 27, 2018 | — | |
| Oct 1, 2017 | — | MR | No | No | — | TT | — | Resolved | Aug 27, 2018 | — | |
| May 1, 2017 | May 31, 2017 | TT | Yes | No | — | — | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | TT | Yes | No | — | — | — | Resolved | May 31, 2017 | — | |
| Dec 1, 2011 | Dec 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | — | |
| Dec 1, 2011 | Dec 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2004 | — | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2004 | — | |
| May 1, 2002 | May 31, 2002 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2002 | — | |
| May 1, 2002 | May 31, 2002 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2002 | — | |
| Sep 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Sep 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1999 | — | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1999 | — | |
| Mar 1, 1998 | Mar 31, 1998 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1998 | — | |
| Mar 1, 1998 | Mar 31, 1998 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1998 | — | |
| Jan 1, 1998 | Jan 31, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1998 | — | |
| Jan 1, 1998 | Jan 31, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1998 | — | |
| Jul 1, 1993 | Dec 31, 2003 | MR | No | No | — | TT | — | Resolved | Dec 31, 2003 | — | |
| Aug 1, 1989 | Aug 31, 1989 | Other | No | No | — | — | — | Archived | Aug 31, 1989 | — | |
| Feb 1, 1989 | Feb 28, 1989 | Other | No | No | — | — | — | Archived | Feb 28, 1989 | — | |
| Jun 1, 1987 | Jun 30, 1987 | Other | No | No | — | — | — | Archived | Jun 30, 1987 | — |
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.