City and town drinking water records
Water systems serving Jefferson City, MO
5 community water systems have a mapped service area in Jefferson City, MO. MO American Jefferson City District covers 34% of the area inside Jefferson City's Census boundary and reports serving 30,075 people in all.
None of them had a health-based violation in the last 10 years.
4 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.
Their lead service line inventories list 236 lead lines, 279 galvanized lines that must be replaced and 11,662 lines of unknown material.
- Community water systems
- 5
- Systems with a health-based violation, last 10 years
- 0
- Systems with one unresolved
- 1
- Lead service lines in inventories
- 236
Water systems serving Jefferson City
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 |
|---|---|---|---|---|---|---|
| MO American Jefferson City District | Covers 34% of Jefferson City | 30,075 | Surface water | 0 | 0 | 234 |
| Cole County PWSD 2 | Covers 29% of Jefferson City | 13,107 | Groundwater | 0 | 0 | 0 |
| Cole County PWSD 1 | Covers 16% of Jefferson City | 16,548 | Groundwater | 0 | 1 | 2 |
| Cole County PWSD 4 | Covers 10% of Jefferson City | 7,568 | Groundwater | 0 | 0 | 0 |
| MO American Jefferson City North | Mapped area inside Jefferson City | 95 | Purchased groundwater | 0 | 0 | 0 |
Other cities and towns in Cole County
7 placesCounties 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