OASIS INVESTMENTS
California - Community Water System - PWSID: CA5000263
System Information
| PWSID | CA5000263 |
| System Name | OASIS INVESTMENTS |
| 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 | Jun 27, 1980 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | TURLOCK |
| ZIP Code | 95381 |
| Address | PO Box 1530 |
| Organization | NICKELS, TERRY |
| Phone | 209-581-2707 |
Population & Service
| Population Served | 75 |
| Service Connections | 31 |
Drinking Water Violations (26)
This water system has 26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | - | 0.0002 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | - | 0.0002 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Jul 1, 1993 | Apr 4, 2000 | MR | No | No | - | TT | - | Resolved | Apr 4, 2000 | - | |
| Apr 29, 1982 | Apr 28, 1983 | MCL | Yes | No | 46 | 10 mg/L | - | Archived | Apr 28, 1983 | - | |
| 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 | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.