Thompson Oaks
Minnesota - Community Water System - PWSID: MN1740008
System Information
| PWSID | MN1740008 |
| System Name | Thompson Oaks |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 2012 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Minnesota |
| City | Ellendale |
| ZIP Code | 56026 |
| Address | 14758 SW 52nd Ave |
| Organization | Thompson Oaks |
| Phone | 5074610804 |
Population & Service
| Population Served | 51 |
| Service Connections | 17 |
Drinking Water Violations (72)
This water system has 72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 19.5 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 19.5 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 19.5 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 22 PCI/L | 15 pCi/L | - | Archived | Sep 30, 2025 | - | |
| Apr 28, 2025 | - | Other | No | No | - | - | - | Resolved | May 16, 2025 | - | |
| Apr 28, 2025 | - | Other | No | No | - | - | - | Resolved | May 16, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 20 PCI/L | 15 pCi/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 20 PCI/L | 15 pCi/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 20 PCI/L | 15 pCi/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 20 PCI/L | 15 pCi/L | - | Archived | Jun 30, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 23 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 23 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 23 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 23 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2025 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 15.6 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 15.6 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 15.6 PCI/L | 15 pCi/L | - | Archived | Dec 31, 2024 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Archived | Mar 31, 2023 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 17.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | 18.3 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 18.2 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2020 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 15.3 PCI/L | 15 pCi/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 15.3 PCI/L | 15 pCi/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.