WESPAK, INC.
California - Non-Transient Non-Community - PWSID: CA5400526
System Information
| PWSID | CA5400526 |
| System Name | WESPAK, INC. |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Nov 30, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | DINUBA |
| ZIP Code | 93618-9774 |
| Address | 4572 Avenue 400 |
| Organization | FIDALGO, MATT |
| Phone | 559-897-7700 |
Population & Service
| Population Served | 53 |
| Service Connections | 6 |
Drinking Water Violations (47)
This water system has 47 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 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 22.8 MG/L | 10 mg/L | 10 | Resolved | Mar 15, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 22.8 MG/L | 10 mg/L | 10 | Resolved | Mar 15, 2024 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 19.7 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 19.7 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 17.5 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 17.5 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 18.1 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 18.1 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 14.2 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 14.2 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 14.3 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 14.3 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 13.3 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 13.3 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 11.7 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 11.7 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2022 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2021 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MCL | Yes | No | - | - | - | Resolved | Jun 30, 2019 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MCL | Yes | No | - | - | - | Resolved | Jun 30, 2019 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Dec 1, 2008 | Dec 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2008 | - | |
| Dec 1, 2008 | Dec 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2008 | - | |
| 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 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MCL | Yes | No | .22 MG/L | 0.0002 mg/L | .0002 | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MCL | Yes | No | .22 MG/L | 0.0002 mg/L | .0002 | Resolved | Sep 30, 2006 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Jul 1, 2004 | Sep 30, 2004 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Jun 30, 2004 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jun 30, 2004 | - | |
| Jan 1, 2004 | Mar 31, 2004 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Mar 31, 2004 | - | |
| Jan 1, 2003 | Dec 31, 2003 | MCL | Yes | No | 1.3 MG/L | 0.0002 mg/L | .0002 | Resolved | Dec 31, 2003 | - | |
| Jan 1, 1998 | Jan 31, 1998 | MCL | Yes | No | .44 MG/L | 0.0002 mg/L | .0002 | Resolved | Jan 31, 1998 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MCL | Yes | No | .76 MG/L | 0.0002 mg/L | .0002 | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MCL | Yes | No | .76 MG/L | 0.0002 mg/L | .0002 | Resolved | Dec 31, 1995 | - | |
| Sep 1, 1983 | Sep 30, 1983 | Other | No | No | - | - | - | Archived | Sep 30, 1983 | - | |
| Apr 1, 1983 | Apr 30, 1983 | Other | No | No | - | - | - | Archived | Apr 30, 1983 | - | |
| Nov 1, 1982 | Nov 30, 1982 | Other | No | No | - | - | - | Archived | Nov 30, 1982 | - | |
| Oct 1, 1982 | Oct 31, 1982 | Other | No | No | - | - | - | Archived | Oct 31, 1982 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.