NPS-WOLVERTON
California — Community Water System — PWSID: CA5410503
System Information
| PWSID | CA5410503 |
| System Name | NPS-WOLVERTON |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | THREE RIVERS |
| ZIP Code | 93271 |
| Address | 47050 GENERALS HIGHWAY |
| Organization | AVUSUGLO-AHIA, BRIGHT |
| Phone | 559-565-3749 |
Population & Service
| Population Served | 2,940 |
| Service Connections | 125 |
Drinking Water Violations (300)
This water system has 300 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 2, 2025 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | No | — | — | — | Resolved | Apr 30, 2024 | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | No | — | — | — | Resolved | Apr 30, 2024 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .0692 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .0692 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .099 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .099 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2023 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .091 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .091 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2022 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Feb 28, 2023 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Feb 28, 2023 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .128 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .128 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .135 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .135 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | .064 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | .064 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2021 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | .065 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | .065 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jul 1, 2018 | — | MR | No | No | — | TT | — | Resolved | Nov 17, 2025 | — | |
| Jul 1, 2018 | — | MR | No | No | — | TT | — | Resolved | Nov 17, 2025 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .068 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .068 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .09 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .09 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2018 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .092 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .116 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .092 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .116 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .121 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .121 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .087 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .087 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .092 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Mar 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.