Oklahoma
Custer County drinking water quality
12 active public water systems serve 24,061 people in Custer County. 1 are compliant, 11 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 2 carry a health flag.
Needs attention
Community water systems
11 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Weatherford |
10,833 | 5 | 1 | |
|
Clinton |
8,883 | 9 | 1 | |
|
Thomas |
1,238 | 0 | 0 | |
|
Custer County Rwd #3 |
960 | 1 | 0 | |
|
Arapaho |
748 | 3 | 0 | |
|
Frontier Development Auth |
437 | 3 | 1 | |
|
Custer City PWS |
393 | 1 | 0 | |
|
Butler |
345 | 2 | 0 | |
|
Country East MHP |
97 | 5 | 1 | |
|
Shady Acres Custer County |
40 | 8 | 2 | |
|
Foss Reservoir McD |
12 | 1 | 0 |
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 |
|---|---|---|---|---|
|
Traverse Wind Energy, LLC |
75 | 2 | 0 |
Inactive systems (49, 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 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.