RIPON, CITY OF
California — Community Water System — PWSID: CA3910007
System Information
| PWSID | CA3910007 |
| System Name | RIPON, CITY OF |
| 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 | Mar 20, 2026 |
Location & Contact
| State | California |
| City | RIPON |
| ZIP Code | 95366 |
| Address | 259 N. WILMA AVE |
| Organization | PEASE, JAMES |
| Phone | 209-599-2108 |
Population & Service
| Population Served | 15,741 |
| Service Connections | 5,102 |
Drinking Water Violations (30)
This water system has 30 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, 2014 | Dec 31, 2014 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Sep 30, 2010 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Sep 30, 2010 | — | |
| Dec 19, 2001 | Mar 19, 2002 | MCL | Yes | No | 47.5 MG/L | 10 mg/L | 45 | Resolved | Feb 27, 2002 | — | |
| Dec 19, 2001 | Mar 19, 2002 | MCL | Yes | No | 47.5 MG/L | 10 mg/L | 45 | Resolved | Feb 27, 2002 | — | |
| Jul 23, 2001 | Oct 22, 2001 | MCL | Yes | No | .006 MG/L | 0.005 mg/L | .005 | Resolved | Oct 18, 2001 | — | |
| Jul 23, 2001 | Oct 22, 2001 | MCL | Yes | No | .006 MG/L | 0.005 mg/L | .005 | Resolved | Oct 18, 2001 | — | |
| Dec 1, 2000 | Dec 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Dec 1, 2000 | Dec 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| 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 | — | |
| Sep 1, 1999 | Sep 30, 1999 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 21, 1999 | — | |
| Sep 1, 1999 | Sep 30, 1999 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 21, 1999 | — | |
| Dec 1, 1997 | Dec 31, 1997 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1997 | — | |
| Jun 1, 1997 | Jun 30, 1997 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1997 | — | |
| Oct 1, 1995 | Oct 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 24, 1995 | — | |
| Jul 1, 1995 | Jul 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1995 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Aug 1, 1989 | Aug 31, 1989 | Other | No | No | — | — | — | Archived | Aug 31, 1989 | — | |
| Nov 1, 1988 | Nov 30, 1988 | MR | No | Yes | — | 10 mg/L | — | Archived | Nov 30, 1988 | — | |
| Nov 1, 1988 | Nov 30, 1988 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Nov 30, 1988 | — | |
| Nov 1, 1988 | Nov 30, 1988 | Other | No | No | — | — | — | Archived | Nov 30, 1988 | — | |
| Nov 1, 1988 | Nov 30, 1988 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Nov 30, 1988 | — | |
| Nov 1, 1988 | Nov 30, 1988 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Nov 30, 1988 | — |
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.