IRISH HILLS MUTUAL WATER CO
California - Community Water System - PWSID: CA4000203
System Information
| PWSID | CA4000203 |
| System Name | IRISH HILLS MUTUAL WATER CO |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | May 24, 2003 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | SAN LUIS OBISPO |
| ZIP Code | 93405 |
| Address | 215 Via Laguna Vista |
| Organization | CHIVENS, DAVID |
| Phone | 805-546-1305 |
Population & Service
| Population Served | 135 |
| Service Connections | 58 |
Drinking Water Violations (19)
This water system has 19 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, 2019 | - | MR | No | No | - | TT | - | Resolved | Dec 21, 2020 | - | |
| Jan 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Dec 21, 2020 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Dec 21, 2020 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Dec 21, 2020 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2005 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2004 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2003 | - |
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.