CAL TRANS - DESERT OASIS
California — Transient Non-Community — PWSID: CA3600044
System Information
| PWSID | CA3600044 |
| System Name | CAL TRANS - DESERT OASIS |
| 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 | Nov 17, 2025 |
Location & Contact
| State | California |
| City | SAN BERNARDINO |
| ZIP Code | 92408 |
| Address | 175 W. Cluster St |
| Organization | DECOURSEY, WILLIAM |
| Phone | 909-806-3119 |
Population & Service
| Population Served | 2,000 |
| Service Connections | 1 |
Drinking Water Violations (11)
This water system has 11 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, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jul 1, 2013 | Jul 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2013 | Total Coliform Rule |
| Jul 1, 2013 | Jul 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2013 | Total Coliform Rule |
| Jun 1, 2012 | Jun 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | Total Coliform Rule |
| Jun 1, 2012 | Jun 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | Total Coliform Rule |
| Nov 1, 1996 | Nov 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | Total Coliform Rule |
| Nov 1, 1996 | Nov 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1996 | Total Coliform Rule |
| Jul 1, 1996 | Jul 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1996 | Total Coliform Rule |
| Jul 1, 1996 | Jul 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1996 | Total Coliform Rule |
| Jul 1, 1996 | Jul 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1996 | Total Coliform Rule |
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.