City and town drinking water records

Water systems serving Sand Coulee, MT

1 community water system has a mapped service area in Sand Coulee, MT. Sand Coulee Water Users District's mapped service area lies inside Sand Coulee's Census boundary, and it reports serving 180 people in all.

It had at least one health-based violation in the last 10 years, and at least one is still unresolved.

3 more systems are placed in Sand Coulee by EPA's town record because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems

1

Systems with a health-based violation, last 10 years

1

Systems with one unresolved

1

Water systems serving Sand Coulee

1 system

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Sand Coulee Water Users District	Mapped area inside Sand Coulee	180	Groundwater	1	3	No inventory

Systems placed by EPA's town record in Sand Coulee

3 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by EPA's town record (EPA lists them serving this town), and without a map they are not counted in the figures above.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Tracy Water Users Corp	Town on record	200	Groundwater	0	0	0
Big Stone Colony Inc	Town on record	130	Groundwater	0	0	0
Grassland Colony	Town on record	80	Groundwater	0	0	0

Other cities and towns in Cascade County

14 places

• Belt
• Black Eagle
• Cascade
• Great Falls
• Malmstrom AFB
• Neihart
• Pleasant Valley Colony
• Simms
• Stockett
• Sun Prairie
• Sun River
• Tracy
• Ulm
• Vaughn

Back to Cascade County, MT

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