City and town drinking water records
Water systems serving Helena, MT
5 community water systems have a mapped service area in Helena, MT. Helena Water System covers 75% of the area inside Helena's Census boundary and reports serving 32,091 people in all.
2 of them had at least one health-based violation in the last 10 years. 1 system still has one unresolved.
3 rely mainly on groundwater and 2 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 214 lines of unknown material.
38 more systems are placed in Helena 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
- 5
- Systems with a health-based violation, last 10 years
- 2
- Systems with one unresolved
- 1
- Lead service lines in inventories
- 0
Water systems serving Helena
5 systemsPeople 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 75% of Helena | 32,091 | Surface water | 3 | 0 | 0 |
| McHugh Mobile Home Park | Mapped area inside Helena | 490 | Groundwater | 0 | 1 | 0 |
| Mobile City Home Park No 1 | Mapped area inside Helena | 100 | Groundwater | 0 | 0 | 0 |
| Golden Estates Trailer Court | Mapped area inside Helena | 225 | Groundwater | 3 | 0 | 0 |
| Mobile City 3 | Mapped area inside Helena | 40 | Purchased surface water | 0 | 0 | 0 |
Systems placed by EPA's town record in Helena
38 systemsEPA 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 |
|---|---|---|---|---|---|---|
| City of East Helena | Town on record | 2,114 | Groundwater | 1 | 0 | 1 |
| Helena Leisure LLC | Town on record | 1,200 | Groundwater | 0 | 0 | 0 |
| Ten Mile and Pleasant Valley WUA | Town on record | 750 | Groundwater | 1 | 1 | 0 |
| North Star PUD | Town on record | 715 | Groundwater | 0 | 0 | 0 |
| Treasure State Acres WUA | Town on record | 483 | Groundwater | 0 | 0 | 0 |
| La Casa Grande Water and Sewer District | Town on record | 404 | Groundwater | 0 | 1 | 0 |
| Skyview Water and Sewer Utility | Town on record | 400 | Groundwater | 2 | 0 | 0 |
| Golden Estates Homeowners Association | Town on record | 400 | Groundwater | 0 | 0 | 0 |
| Mobile City Home Park No 2 | Town on record | 300 | Groundwater | 0 | 0 | 0 |
| Helena RV and Mobile Home Park | Town on record | 250 | Groundwater | 0 | 0 | 0 |
| Ranchview Estates WUA | Town on record | 250 | Groundwater | 0 | 0 | 0 |
| Grass Land Estates | Town on record | 228 | Groundwater | 0 | 0 | 0 |
| Holmberg Village Estates | Town on record | 225 | Groundwater | 1 | 0 | No inventory |
| Glacier Point Ho and WUA | Town on record | 210 | Groundwater | 1 | 0 | No inventory |
| Bridge Creek Estates Subdivision | Town on record | 205 | Groundwater | 0 | 0 | 0 |
| Town View Estates WUA Inc | Town on record | 175 | Groundwater | 0 | 0 | 0 |
| Prairie Mobile Village | Town on record | 163 | Groundwater | 0 | 0 | 0 |
| Pebble Gardens Mobile Home CT | Town on record | 125 | Groundwater | 0 | 0 | 0 |
| Homestead Valley WUA Hvha | Town on record | 105 | Groundwater | 0 | 0 | 0 |
| Bryant No 3 Subdivision | Town on record | 100 | Groundwater | 0 | 0 | 0 |
| North Forestvale Homeowners | Town on record | 98 | Groundwater | 0 | 0 | 0 |
| Camel Mountain HOA | Town on record | 96 | Groundwater | 0 | 0 | 0 |
| Camelot HOA | Town on record | 96 | Groundwater | 0 | 0 | 0 |
| Masonic Home of Montana | Town on record | 90 | Groundwater | 0 | 0 | 0 |
| Park Evergreen Trailer Court | Town on record | 87 | Groundwater | 0 | 0 | 0 |
| Applegate Village | Town on record | 85 | Groundwater | 0 | 0 | 0 |
| South Forestvale HOA | Town on record | 82 | Groundwater | 0 | 0 | 0 |
| Ruger Water District | Town on record | 79 | Groundwater | 0 | 0 | 0 |
| Barnett Water Users System | Town on record | 70 | Groundwater | 0 | 0 | 0 |
| Blue Cloud Subdivision | Town on record | 60 | Groundwater | 5 | 0 | 0 |
| Beacon Trailer Court Helena | Town on record | 55 | Groundwater | 0 | 0 | 0 |
| Helena North KOA | Town on record | 50 | Groundwater | 0 | 0 | 0 |
| Grand Valley Estates Subdivision | Town on record | 50 | Groundwater | 0 | 0 | 0 |
| Moonlight Estates HOA | Town on record | 44 | Groundwater | 0 | 0 | 0 |
| Broadwater Estates HOA | Town on record | 40 | Groundwater | 5 | 0 | 0 |
| Trails End TR Park Helena | Town on record | 35 | Groundwater | 0 | 0 | 0 |
| Rosemarys Addition | Town on record | 30 | Groundwater | 0 | 0 | 0 |
| Western Skies Mobile CT | Town on record | 25 | Groundwater | 0 | 0 | 0 |
Other cities and towns in Lewis and Clark County
10 placesBack 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