ONE STOP WS
California - Transient Non-Community - PWSID: CA5000457
System Information
| PWSID | CA5000457 |
| System Name | ONE STOP WS |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 21, 1992 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | SAN JOSE |
| ZIP Code | 95156 |
| Address | PO BOX 56357 |
| Organization | TOSCANO, MIGUEL |
| Phone | 408-310-0040 |
Population & Service
| Population Served | 50 |
| Service Connections | 1 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 13 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Jun 30, 2025 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Sep 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Jun 30, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Mar 31, 2024 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Sep 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 13 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 13 MG/L | 10 mg/L | 10 | Archived | Sep 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 13 MG/L | 10 mg/L | 10 | Archived | Jun 30, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | 13 MG/L | 10 mg/L | 10 | Archived | Mar 31, 2022 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Sep 30, 2021 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Archived | Sep 30, 2020 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Jun 30, 2019 | - | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Mar 31, 2019 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Archived | Dec 31, 2018 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2001 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2001 | - | |
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2001 | - | |
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2001 | - | |
| Nov 1, 2000 | Oct 31, 2001 | MCL | Yes | No | 71.2 MG/L | 10 mg/L | 45 | Resolved | Oct 31, 2001 | - | |
| Nov 1, 2000 | Oct 31, 2001 | MCL | Yes | No | 71.2 MG/L | 10 mg/L | 45 | Resolved | Oct 31, 2001 | - |
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.