CSP - RANCHO DEL OSO
California - Transient Non-Community - PWSID: CA4410306
System Information
| PWSID | CA4410306 |
| System Name | CSP - RANCHO DEL OSO |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | FELTON |
| ZIP Code | 95018 |
| Address | 303 Big Trees Park Road |
| Organization | BENTLEY, JACOB |
| Phone | 831-251-2884 |
Population & Service
| Population Served | 669 |
| Service Connections | 2 |
Drinking Water Violations (20)
This water system has 20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2004 | - | |
| Jan 1, 2004 | Nov 4, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 26, 2004 | - | |
| Jan 1, 2004 | Nov 4, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 26, 2004 | - | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2004 | - | |
| Oct 1, 2002 | Nov 4, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 26, 2004 | - | |
| Oct 1, 2002 | Nov 4, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 26, 2004 | - | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | - | 10 mg/L | - | Resolved | Nov 19, 2001 | - | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | - | 10 mg/L | - | Resolved | Nov 19, 2001 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - |
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.