RIM ROCK WATER COMPANY
California - Community Water System - PWSID: CA4000750
System Information
| PWSID | CA4000750 |
| System Name | RIM ROCK WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 28, 1986 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | GROVER BEACH |
| ZIP Code | 93483 |
| Address | P.O. Box 757 |
| Organization | ELDER, ERIC |
| Phone | 805-441-1391 |
Population & Service
| Population Served | 55 |
| Service Connections | 25 |
Drinking Water Violations (69)
This water system has 69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 40 UG/L | 0.010 mg/L | 10 | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 40 UG/L | 0.010 mg/L | 10 | Resolved | Jun 30, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 40 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 40 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2025 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 64 UG/L | 0.010 mg/L | 10 | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 64 UG/L | 0.010 mg/L | 10 | Resolved | Dec 31, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 163 UG/L | 0.010 mg/L | 10 | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 163 UG/L | 0.010 mg/L | 10 | Resolved | Sep 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 62 UG/L | 0.010 mg/L | 10 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 62 UG/L | 0.010 mg/L | 10 | Resolved | Jun 30, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2024 | - | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | 10 | Resolved | Mar 31, 2024 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 5 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 136 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 6 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 6 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | 4 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | 4 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2022 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | 27 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | 27 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 56 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 61 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 61 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 85 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 85 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 28 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 28 UG/L | 0.010 mg/L | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 28 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 28 UG/L | 0.010 mg/L | - | Resolved | Mar 31, 2020 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | 25 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | 25 UG/L | 0.010 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 42 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 42 UG/L | 0.010 mg/L | - | Resolved | Sep 30, 2019 | - |
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.