Water quality for ZIP code 74866
ZIP 74866 covers St. Louis in Pottawatomie County, Oklahoma, one of 9 ZIP codes in the county. 25 active public water systems serve the county; 19 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Pottawatomie County
14 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Tecumseh Utility Authority |
6,098 | 1 | |
| Tri-County Rwd #2 |
5,172 | 3 | |
| McLoud |
2,939 | 1 | |
| Pottawatomie CO Development Auth |
1,200 | 0 | |
| Maud |
1,136 | 3 | |
| Pottawatomie County Rwd #3 |
560 | 2 | |
| Wanette Public Works Authority |
402 | 6 | |
| Asher Util Dev Auth |
375 | 4 | |
| Pottawatomie Co. Rwd #3 (dale Plant) |
313 | 2 | |
| St. Louis Rwd |
225 | 2 | |
| Pine Country Living MHP |
100 | 8 | |
| Brooksville |
90 | 10 | |
| Steelman Estates |
45 | 4 | |
| Timber Creek MHP East & West |
40 | 10 |
Non-community systems in Pottawatomie County (10: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Loves Country Store #252 |
300 | 0 | 0 | |
|
Family of Faith |
250 | 6 | 1 | |
|
Curtis Watsons Restaurant |
200 | 0 | 0 | |
|
McLoud Mazzios Pizza |
100 | 0 | 0 | |
|
Bandana Reds Steakhouse (pott Co) |
50 | 2 | 0 | |
|
Hickory Creek RV |
30 | 2 | 1 | |
|
Dollar General #20168 |
26 | 0 | 0 | |
|
Abuelita Rosas |
25 | 2 | 0 | |
|
Rolling Stone Stables and RV Park |
25 | 2 | 0 | |
|
Spring Hill Store |
25 | 0 | 0 |
About this data
Water systems are matched to Pottawatomie County, the county this ZIP code lies in, largest 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.
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 Oklahoma 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.