County drinking water records
Lake County, SD drinking water systems
6 community water systems serve Lake County, SD, reporting 15,582 people served in all. A system that also serves other counties counts all of its customers here.
1 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.
6 rely mainly on groundwater, counting water bought from other systems.
Their lead service line inventories list 3 lead lines, 2 galvanized lines that must be replaced and 359 lines of unknown material.
- Community water systems
- 6
- People served, sum of each system's own figure
- 15,582
- Systems with a health-based violation, last 10 years
- 1
- Systems with one unresolved
- 0
- Lead service lines in inventories
- 3
Water systems serving Lake County
6 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 |
|---|---|---|---|---|---|---|
| Madison | Madison | 6,191 | Groundwater | 0 | 0 | 2 |
| Big Sioux Community Water System | Lake Madison, Colman and 6 more and land outside them | 5,800 | Groundwater | 0 | 0 | 0 |
| Kingbrook III Rural Water System | Madison, Winfred and 4 more and land outside them | 2,888 | Groundwater | 0 | 0 | 1 |
| Chester Sanitary District | Chester | 363 | Purchased groundwater | 0 | 0 | 0 |
| Wentworth | Wentworth | 181 | Purchased groundwater | 0 | 0 | 0 |
| Ramona | Ramona | 159 | Purchased groundwater | 1 | 0 | 0 |
Cities and towns in Lake County
10 places- Brant Lake1 system
- Brant Lake South1 system
- Chester1 system
- Graceville Colony1 system
- Lake Madison1 system
- Madison2 systems
- Ramona1 system
- Rustic Acres Colony1 system
- Wentworth1 system
- Winfred1 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