RIDGEWOOD WATER SYSTEM
California - Community Water System - PWSID: CA2300708
System Information
| PWSID | CA2300708 |
| System Name | RIDGEWOOD WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water Under Influence |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | WILLITS |
| ZIP Code | 95490 |
| Address | 11725 Orchard Ln. |
| Organization | SWEARENGIN, JOSEPH R. |
| Phone | 707-391-5073 |
Population & Service
| Population Served | 265 |
| Service Connections | 167 |
Drinking Water Violations (25)
This water system has 25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 20, 2023 | - | TT | Yes | No | - | - | - | Resolved | Jun 20, 2023 | - | |
| Oct 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Aug 1, 2012 | Aug 31, 2012 | Other | No | No | - | - | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | Other | No | No | - | - | - | Resolved | Aug 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Mar 7, 2018 | - | |
| Jan 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Mar 7, 2018 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jul 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Mar 6, 2018 | - | |
| Jul 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Mar 6, 2018 | - | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2001 | - | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2001 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Jul 1, 1993 | Mar 1, 2000 | MR | No | No | - | TT | - | Resolved | Mar 1, 2000 | - | |
| Oct 1, 1981 | Sep 30, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 30, 1982 | - | |
| Oct 30, 1980 | Oct 29, 1981 | MR | No | Yes | - | 15 pCi/L | - | Archived | Oct 29, 1981 | - |
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.