County drinking water records
Blaine County, MT drinking water systems
10 community water systems serve Blaine County, MT, reporting 6,125 people served in all.
6 of them (60%) had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.
6 rely mainly on groundwater and 4 on surface water, counting water bought from other systems.
Their lead service line inventories list 3 lead lines, 0 galvanized lines that must be replaced and 799 lines of unknown material.
- Community water systems
- 10
- People served, sum of each system's own figure
- 6,125
- Systems with a health-based violation, last 10 years
- 6
- Systems with one unresolved
- 2
- Lead service lines in inventories
- 3
Water systems serving Blaine County
10 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 |
|---|---|---|---|---|---|---|
| Fort Belknap Agency Water System | Fort Belknap Agency | 2,600 | Surface water | 62 | 0 | 0 |
| City of Chinook | Chinook | 1,300 | Surface water | 4 | 0 | 3 |
| Hays/White Cow Canyon WS | Hays | 840 | Groundwater | 1 | 0 | 0 |
| City of Harlem | Harlem | 820 | Surface water | 40 | 2 | 0 |
| Mnihnapa Water System | Lodge Pole | 220 | Groundwater | 3 | 0 | 0 |
| Perrys Water Service | Chinook | 100 | Purchased surface water | 0 | 0 | 0 |
| Old Hays | Hays | 80 | Groundwater | 0 | 0 | 0 |
| Hartland Colony | Hartland Colony | 73 | Groundwater | 0 | 0 | 0 |
| Turner Colony | Turner | 50 | Groundwater | 14 | 1 | 0 |
| North Harlem Colony | North Harlem Colony and Harlem | 42 | Groundwater | 0 | 0 | 0 |
Cities and towns in Blaine County
8 places- Chinook2 systems
- Fort Belknap Agency1 system
- Harlem1 system
- Hartland Colony1 system
- Hays2 systems
- Lodge Pole1 system
- North Harlem Colony1 system
- Turner1 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