Water quality for ZIP code 74650
ZIP 74650 covers Ralston in Osage County, Oklahoma, one of 17 ZIP codes in the county. 30 active public water systems serve the county; 27 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Osage County
26 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Fairfax |
1,555 | 2 | 6.2 mi | |
| Osage CO Rws & Swd #3 (braden) |
700 | 2 | 13.9 mi | |
| Burbank |
150 | 0 | 14.5 mi | |
| McCord Rwd #3 |
1,800 | 1 | 19.1 mi | |
| Shidler |
404 | 2 | 20.0 mi | |
| Hominy |
2,584 | 9 | 20.5 mi | |
| Osage Pwa |
275 | 4 | 22.8 mi | |
| Osage CO Rwd #21 |
1,500 | 9 | 22.8 mi | |
| Osage Park Addn Prop |
65 | 12 | 23.6 mi | |
| Wynona |
450 | 4 | 23.9 mi | |
| Osage CO Rwd #18 (evergreen) |
302 | 4 | 26.6 mi | |
| Pawhuska |
3,800 | 2 | 27.3 mi | |
| Frontier Shores Poa Water Dept |
200 | 5 | 27.4 mi | |
| Walnut Park Estates |
42 | 11 | 30.0 mi | |
| Prue Pwa |
387 | 2 | 31.5 mi | |
| Barnsdall |
1,243 | 7 | 34.1 mi | |
| Osage CO Rwd #15 |
6,647 | 0 | 35.2 mi | |
| Osage CO Rwd # 5 |
561 | 4 | 37.1 mi | |
| Avant Utilities Authority |
361 | 4 | 38.4 mi | |
| Strike-Axe Hwy 60 |
450 | 1 | 41.2 mi | |
| Skiatook Pwa |
8,110 | 1 | 41.2 mi | |
| Diamondhead Homeowners Assoc |
50 | 1 | 42.9 mi | |
| Osage CO Rwd # 1 |
930 | 3 | 43.4 mi | |
| Osage CO Rwd #20 (hulah) |
350 | 5 | 46.6 mi | |
| Strike Axe (chimney Rock) |
275 | 2 | — |
Non-community systems in Osage County (3: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wynona School |
140 | 4 | 1 | |
|
Walnut Creek Park |
25 | 1 | 0 | |
|
Dollar General #20868 |
26 | 0 | 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 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.