Big Sandy Rancheria
California - Community Water System - PWSID: 090600121
System Information
| PWSID | 090600121 |
| System Name | Big Sandy Rancheria |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1984 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | California |
| City | Auberry |
| ZIP Code | 93602 |
| Address | P. O. Box 337 |
| Organization | Big Sandy Rancheria |
| Phone | 5593740066 |
Population & Service
| Population Served | 408 |
| Service Connections | 62 |
Drinking Water Violations (427)
This water system has 427 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, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .13533 MG/L | 30 ug/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .13533 MG/L | 30 ug/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .13533 MG/L | 30 ug/L | - | Resolved | Mar 31, 2025 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .0928 MG/L | 30 ug/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .0928 MG/L | 30 ug/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .0928 MG/L | 30 ug/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .13533 MG/L | 30 ug/L | - | Resolved | Sep 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 28, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .1353 MG/L | 30 ug/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2023 | - | |
| Mar 1, 2023 | - | MR | No | Yes | - | - | - | Resolved | Apr 15, 2023 | - | |
| Feb 1, 2023 | Feb 28, 2023 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 5 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2018 | - | MR | No | Yes | - | - | - | Resolved | Jul 17, 2020 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.0005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.00000003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.07 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.