Missouri
Boone County drinking water quality
13 active public water systems serve 229,905 people in Boone County. 5 are compliant, 8 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
12 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Columbia Utilities |
126,254 | 1 | 1 | |
|
University of Missouri Columbia Columbia |
40,000 | 0 | 0 | |
|
Boone County Cons Pwsd 1 Columbia |
24,700 | 1 | 0 | |
|
Boone County Pwsd 9 Columbia |
15,035 | 1 | 0 | |
|
Boone County Pwsd 4 Hallsville |
6,455 | 0 | 0 | |
|
Ashland PWS Ashland |
4,999 | 1 | 0 | |
|
Boone County Pwsd 10 Centralia |
4,963 | 0 | 0 | |
|
Centralia PWS Centralia |
4,027 | 0 | 0 | |
|
Hallsville PWS Hallsville |
1,732 | 1 | 0 | |
|
Sturgeon PWS Sturgeon |
945 | 3 | 0 | |
|
Kuhle H20 Columbia |
450 | 0 | 0 | |
|
Green Hills MHP Columbia |
195 | 2 | 1 |
Non-community systems (1: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Coopers Landing |
150 | 3 | 0 |
Inactive systems (27, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Missouri records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.