Santa Rosa Rancheria
California - Community Water System - PWSID: 090600148
System Information
| PWSID | 090600148 |
| System Name | Santa Rosa Rancheria |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| 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 | Lemoore |
| ZIP Code | 93245 |
| Address | P. O. Box 8 |
| Organization | Santa Rosa Rancheria |
| Phone | 5599241278 |
Population & Service
| Population Served | 1,000 |
| Service Connections | 251 |
Drinking Water Violations (309)
This water system has 309 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 18, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 18, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Apr 1, 2025 | - | Other | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Mar 1, 2025 | Mar 31, 2025 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2025 | - | |
| Mar 1, 2025 | - | Other | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Mar 1, 2025 | Mar 31, 2025 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2025 | - | |
| Mar 1, 2025 | Mar 31, 2025 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2025 | - | |
| Feb 1, 2025 | - | Other | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Sep 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 25, 2025 | - | |
| Sep 1, 2024 | Sep 30, 2024 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2024 | - | |
| Aug 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 25, 2025 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 25, 2025 | - | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2024 | - | |
| Apr 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 25, 2025 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Dec 18, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 29, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2023 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 24, 2022 | - | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Aug 1, 2015 | Aug 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2015 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | .1279 MG/L | 0.080 mg/L | - | Resolved | Mar 31, 2014 | - | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | .175 MG/L | 0.080 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .175 MG/L | 0.080 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .175 MG/L | 0.080 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | .165 MG/L | 0.080 mg/L | - | Resolved | Mar 31, 2013 | - |
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.