Water quality for ZIP code 66543
ZIP 66543 covers Vassar in Osage County, Kansas, one of 9 ZIP codes in the county. 17 active public water systems serve the county; 12 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 Osage County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Osage CO Rwd 2 Quenemo |
440 | 2 | 4.2 mi | |
| Lyndon, City of Lyndon |
1,049 | 3 | 5.0 mi | |
| Quenemo, City of Quenemo |
287 | 0 | 5.7 mi | |
| Osage CO Rwd 6 Lyndon |
383 | 0 | 6.1 mi | |
| Melvern, City of Melvern |
351 | 1 | 9.2 mi | |
| Overbrook, City of Overbrook |
999 | 1 | 9.9 mi | |
| Osage CO Rwd 5 Overbrook |
3,875 | 0 | 10.6 mi | |
| Public Wholesale Wsd 12 Melvern |
1 | 0 | 12.0 mi | |
| Osage City, City of Osage City |
2,809 | 1 | 12.0 mi | |
| Scranton, City of Scranton |
651 | 2 | 12.2 mi | |
| Carbondale, City of Carbondale |
1,344 | 4 | 13.4 mi | |
| Osage CO Rwd 7 Osage City |
1,430 | 0 | 13.8 mi | |
| Osage CO Rwd 4 Waverly |
500 | 3 | 13.9 mi | |
| Burlingame, City of Burlingame |
955 | 1 | 14.8 mi | |
| Osage CO Rwd 8 Burlingame |
2,240 | 1 | 21.1 mi |
Non-community systems in Osage County (1: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Melvern Res Arrow Rock Melvern |
25 | 1 | 0 |
About this data
Water systems are matched to Osage County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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 Kansas 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.