SAN JOAQUIN WINE COMPANY
California - Non-Transient Non-Community - PWSID: CA2000920
System Information
| PWSID | CA2000920 |
| System Name | SAN JOAQUIN WINE COMPANY |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 15, 2001 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | MADERA |
| ZIP Code | 93637 |
| Address | 21801 AVENUE 16 |
| Organization | SCHAFER, STEVE/CINDY |
| Phone | 559-647-1987 |
Population & Service
| Population Served | 90 |
| Service Connections | 5 |
Drinking Water Violations (126)
This water system has 126 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, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .813 UG/L | 0.0002 mg/L | .2 | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .813 UG/L | 0.0002 mg/L | .2 | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .3115 UG/L | 0.0002 mg/L | .2 | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .3115 UG/L | 0.0002 mg/L | .2 | Resolved | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .0003165 MG/L | 0.0002 mg/L | .0002 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .0003165 MG/L | 0.0002 mg/L | .0002 | Resolved | Dec 31, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .49 UG/L | 0.0002 mg/L | .2 | Archived | Sep 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .46 UG/L | 0.0002 mg/L | .2 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .46 UG/L | 0.0002 mg/L | .2 | Resolved | Jun 30, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.04 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.003 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.001 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.04 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.00005 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.001 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0004 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.00000003 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | - | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.007 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.5 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.004 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.02 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.7 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0005 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.003 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.07 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.4 mg/L | - | Archived | Dec 31, 2024 | - | |
| Apr 1, 2021 | Mar 31, 2022 | MCL | Yes | No | .000229 MG/L | 0.0002 mg/L | .0002 | Resolved | Mar 31, 2022 | - | |
| Apr 1, 2021 | Mar 31, 2022 | MCL | Yes | No | .000229 MG/L | 0.0002 mg/L | .0002 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - |
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.