County drinking water records
Koochiching County, MN drinking water systems
6 community water systems serve Koochiching County, MN, reporting 7,387 people served in all.
1 of them had at least one health-based violation in the last 10 years. 1 system still has one unresolved.
4 rely mainly on groundwater and 2 on surface water, counting water bought from other systems.
Their lead service line inventories list 23 lead lines, 2 galvanized lines that must be replaced and 1,145 lines of unknown material.
- Community water systems
- 6
- People served, sum of each system's own figure
- 7,387
- Systems with a health-based violation, last 10 years
- 1
- Systems with one unresolved
- 1
- Lead service lines in inventories
- 23
Water systems serving Koochiching County
6 systemsPeople served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.
| System | Serves | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| International Falls | International Falls | 5,637 | Surface water | 0 | 0 | 18 |
| Ranier | Ranier | 565 | Purchased surface water | 0 | 0 | 1 |
| Littlefork | Littlefork | 542 | Groundwater | 0 | 0 | 4 |
| Nett Lake | Nett Lake and land outside it | 295 | Groundwater | 21 | 1 | 0 |
| Big Falls | Big Falls | 192 | Groundwater | 0 | 0 | 0 |
| Northome | Northome | 156 | Groundwater | 0 | 0 | 0 |
Cities and towns in Koochiching County
5 places- Big Falls1 system
- International Falls1 system
- Littlefork1 system
- Northome1 system
- Ranier1 system
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations