LOWER SIOUX
Minnesota - Community Water System - PWSID: 055294503
System Information
| PWSID | 055294503 |
| System Name | LOWER SIOUX |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 9, 1983 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Minnesota |
| City | MORTON |
| ZIP Code | 56270 |
| Address | Lower Sioux |
| Organization | DANIELSON, CHAD |
| Phone | 507-644-3159 |
Population & Service
| Population Served | 4,000 |
| Service Connections | 195 |
Drinking Water Violations (342)
This water system has 342 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 26, 2025 | - | Other | No | No | - | - | - | Resolved | Jun 26, 2025 | - | |
| Jun 26, 2025 | - | Other | No | No | - | - | - | Resolved | Jun 26, 2025 | - | |
| Jul 2, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 27, 2024 | - | |
| Jul 2, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 27, 2024 | - | |
| Jul 2, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 27, 2024 | - | |
| Jul 2, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 27, 2024 | - | |
| May 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jun 11, 2024 | - | |
| May 1, 2024 | May 31, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jun 11, 2024 | - | |
| May 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jun 11, 2024 | - | |
| May 1, 2024 | May 31, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jun 11, 2024 | - | |
| May 1, 2024 | May 31, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jun 11, 2024 | - | |
| May 1, 2024 | May 31, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | May 31, 2024 | - | |
| Oct 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Nov 15, 2023 | - | |
| Oct 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Nov 15, 2023 | - | |
| Oct 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Nov 15, 2023 | - | |
| Oct 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Nov 15, 2023 | - | |
| Aug 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2023 | - | |
| Aug 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2023 | - | |
| Aug 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2023 | - | |
| Aug 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2023 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0004 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0004 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0004 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 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.