County drinking water records
Sierra County, CA drinking water systems
8 community water systems serve Sierra County, CA, reporting 3,530 people served in all.
3 of them had at least one health-based violation in the last 10 years. 1 system still has one unresolved.
7 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.
7 systems filed a lead service line inventory listing 0 lead lines, 10 galvanized lines that must be replaced and 323 lines of unknown material.
- Community water systems
- 8
- People served, sum of each system's own figure
- 3,530
- Systems with a health-based violation, last 10 years
- 3
- Systems with one unresolved
- 1
- Lead service lines in inventories
- 0
Water systems serving Sierra County
8 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 |
|---|---|---|---|---|---|---|
| City of Loyalton | Loyalton | 983 | Groundwater | 0 | 0 | 0 |
| Downieville Public U.D. | Downieville | 783 | Surface water | 1 | 2 | No inventory |
| Sierra CSA #5, Sierra Brooks | Sierra Brooks | 726 | Groundwater | 1 | 0 | 0 |
| Sierra Water Resources - Sierra City | Sierra City | 324 | Groundwater | 0 | 0 | 0 |
| Sierra City Water Works, Inc. | Sierra City | 250 | Groundwater | 0 | 0 | 0 |
| Sierraville P.U.D. | Sierraville | 200 | Groundwater | 0 | 0 | 0 |
| Sierra Co. W.W.D #1 Calpine | Calpine | 182 | Groundwater | 1 | 0 | 0 |
| Alleghany County W.D. | Alleghany | 82 | Groundwater | 0 | 0 | 0 |
Cities and towns in Sierra County
7 places- Alleghany1 system
- Calpine1 system
- Downieville1 system
- Loyalton1 system
- Sierra Brooks1 system
- Sierra City2 systems
- Sierraville1 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