Oslo
Minnesota — Community Water System — PWSID: MN1450008
System Information
| PWSID | MN1450008 |
| System Name | Oslo |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 24, 1981 |
| Last Reported | Nov 25, 2025 |
Location & Contact
| State | Minnesota |
| City | Oslo |
| ZIP Code | 56744-0187 |
| Address | 107 3rd Avenue East |
| Organization | Oslo City Council |
| Phone | 2186953841 |
Population & Service
| Population Served | 242 |
| Service Connections | 186 |
Drinking Water Violations (13)
This water system has 13 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, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 17, 2018 | Lead and Copper Rule |
| Jul 1, 2014 | Sep 30, 2014 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2014 | Sep 30, 2014 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2014 | Sep 30, 2014 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
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.