TIERRA DEL MAR WATER CO
Oregon — Community Water System — PWSID: OR4100610
System Information
| PWSID | OR4100610 |
| System Name | TIERRA DEL MAR WATER CO |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | CLOVERDALE |
| ZIP Code | 97112 |
| Address | 26600 SANDLAKE RD |
| Organization | TIERRA DEL MAR WATER CO |
| Phone | 503-965-5140 |
Population & Service
| Population Served | 80 |
| Service Connections | 271 |
Drinking Water Violations (204)
This water system has 204 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | — | — | Archived | Dec 31, 2025 | — | |
| Dec 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | — | — | Archived | Dec 31, 2025 | — | |
| Dec 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | — | — | Archived | Dec 31, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 30, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 30, 2025 | — | |
| May 1, 2025 | May 31, 2025 | MON | No | Yes | — | — | — | Resolved | May 31, 2025 | — | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2025 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | — | Other | No | No | — | — | — | Resolved | Dec 21, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Resolved | Dec 21, 2024 | — | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | — | |
| Jul 1, 2023 | Jul 31, 2023 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2023 | — | |
| Jul 1, 2023 | Jul 31, 2023 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2023 | — | |
| Jul 1, 2023 | Jul 31, 2023 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2023 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| May 1, 2022 | May 31, 2022 | MR | No | Yes | — | — | — | Resolved | May 31, 2022 | — | |
| May 1, 2022 | May 31, 2022 | MR | No | Yes | — | — | — | Resolved | May 31, 2022 | — | |
| May 1, 2022 | May 31, 2022 | MR | No | Yes | — | — | — | Resolved | May 31, 2022 | — | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2022 | — | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2022 | — | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2022 | — | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2020 | — | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2020 | — | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2019 | Oct 31, 2019 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2019 | — | |
| Oct 1, 2019 | Oct 31, 2019 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2019 | — | |
| Oct 1, 2019 | Oct 31, 2019 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2019 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2019 | — | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2019 | — | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 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.