City and town drinking water records

Water systems serving Helena Valley Northeast, MT

3 community water systems have a mapped service area in Helena Valley Northeast, MT. Helena Water System covers 1% of the area inside Helena Valley Northeast's Census boundary and reports serving 32,091 people in all.

1 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.

2 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.

Their lead service line inventories list 0 lead lines, 0 galvanized lines that must be replaced and 238 lines of unknown material.

Community water systems

3

Systems with a health-based violation, last 10 years

1

Systems with one unresolved

0

Lead service lines in inventories

0

Water systems serving Helena Valley Northeast

3 systems

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
Helena Water System	Covers 1% of Helena Valley Northeast	32,091	Surface water	3	0	0
Mountain Heritage Water System	Mapped area inside Helena Valley Northeast	175	Groundwater	0	0	0
Grass Land Estates	Mapped area inside Helena Valley Northeast	228	Groundwater	0	0	0

Other cities and towns in Lewis and Clark County

10 places

• Augusta
• East Helena
• Helena
• Helena Valley Northwest
• Helena Valley Southeast
• Helena Valley West Central
• Helena West Side
• Marysville
• Rimini
• Wolf Creek

Back to Lewis and Clark 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