Water quality in Knob Noster, Missouri
Knob Noster is in Johnson County. 16 active public water systems serve the county; 6 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Johnson County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Country Acres Subd Knob Noster |
130 | 0 | 0.1 mi | |
| Whiteman Air Base |
10,106 | 1 | 2.5 mi | |
| Pettis/johnson/saline Pwsd 1 Saline |
1,000 | 3 | 8.5 mi | |
| Johnson County Pwsd 3 Warrensburg |
5,317 | 0 | 8.7 mi | |
| MO American Warrensburg Warrensburg |
18,500 | 0 | 9.1 mi | |
| Confluence Rivers M & M MHP Wtp |
100 | 1 | 10.0 mi | |
| Johnson County Pwsd 1 Warrensburg |
4,240 | 2 | 13.7 mi | |
| Leeton PWS Leeton |
601 | 2 | 14.6 mi | |
| Centerview PWS Centerview |
277 | 1 | 15.4 mi | |
| Chilhowee PWS |
382 | 0 | 20.1 mi | |
| Johnson County Pwsd 2 Holden |
12,490 | 0 | 21.8 mi | |
| Laf JO Saline County Cons Pwsd 2 |
7,180 | 0 | 22.2 mi | |
| Holden PWS Holden |
2,683 | 0 | 23.5 mi | |
| Kingsville PWS Kingsville |
345 | 0 | 27.6 mi | |
| MO American East Warrensburg |
335 | 0 | — |
About this data
Water systems are matched to Johnson County, nearest to Knob Noster first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.