All water systems in Oklahoma
1,291 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Indianola Rwd #18 Pittsburg County |
2,000 | 3 | 0 | |
|
Thackerville Love County |
2,000 | 0 | 0 | |
|
Wagoner Co. Rwd #2 Wagoner County |
2,000 | 10 | 0 | |
|
Western Carter CO Water Corp Carter County |
2,000 | 2 | 1 | |
|
Garfield CO Rwd #5 Garfield County |
1,980 | 0 | 0 | |
|
Chelsea Economic Dev. Auth. Rogers County |
1,964 | 0 | 0 | |
|
Peggs Water Company Cherokee County |
1,925 | 3 | 1 | |
|
Okmulgee Co. Rwd #4 Okmulgee County |
1,913 | 2 | 1 | |
|
McIntosh Co. Rwd #5 McIntosh County |
1,900 | 4 | 0 | |
|
McClain CO Rwd # 8 McClain County |
1,897 | 3 | 1 | |
|
Okmulgee Co. Rwd #1 Okmulgee County |
1,890 | 4 | 0 | |
|
Wyandotte Nation County |
1,886 | 0 | 0 | |
|
US Army Ammunition Plant Pittsburg County |
1,872 | 2 | 0 | |
|
McCurtain Co. Rwd #7 McCurtain County |
1,847 | 1 | 0 | |
|
Comanche CO Rwd #2 Comanche County |
1,840 | 1 | 0 | |
|
Quapaw Industrial Park County |
1,835 | 0 | 0 | |
|
Okfuskee Co. Rwd #3 Okfuskee County |
1,823 | 1 | 0 | |
|
Spiro East Water Association Le Flore County |
1,817 | 5 | 1 | |
|
Ketchum Pwa Delaware CO System Delaware County |
1,805 | 0 | 0 | |
|
Leflore Co. Consolidated Rwd #12 Le Flore County |
1,800 | 3 | 0 | |
|
McCord Rwd #3 Osage County |
1,800 | 1 | 0 | |
|
Okla Christian University Oklahoma County |
1,800 | 2 | 0 | |
|
Hooker Texas County |
1,788 | 5 | 1 | |
|
Pawnee CO Rwd #2 Pawnee County |
1,775 | 2 | 0 | |
|
Haskell Pwa-Wells Muskogee County |
1,765 | 1 | 0 | |
|
Kay CO Rwd #1 Kay County |
1,765 | 2 | 0 | |
|
McIntosh Co. Rws & Swmd #9 McIntosh County |
1,761 | 3 | 1 | |
|
Leflore Co. Rwd #1 Le Flore County |
1,758 | 3 | 2 | |
|
Pittsburg Co. Rwd #5 Pittsburg County |
1,750 | 2 | 0 | |
|
Sequoyah Co. Rwd #4 Sequoyah County |
1,750 | 2 | 0 | |
|
Jones Oklahoma County |
1,727 | 3 | 0 | |
|
Muskogee Co. Rwd #7 Muskogee County |
1,710 | 0 | 0 | |
|
Canadian CO Water Authority Canadian County |
1,700 | 1 | 0 | |
|
Gore Pwa Sequoyah County |
1,688 | 2 | 0 | |
|
Garvin CO Rwd # 6 (wells) Garvin County |
1,680 | 2 | 0 | |
|
Pittsburg Co. Rwd #14 Pittsburg County |
1,680 | 4 | 0 | |
|
Adair CO Rwd #2 Adair County |
1,675 | 2 | 0 | |
|
Langston Pwa Logan County |
1,670 | 6 | 1 | |
|
Comanche Public Works Authority Stephens County |
1,649 | 5 | 0 | |
|
Leflore Co. Rwd #3 Le Flore County |
1,643 | 5 | 1 | |
|
Cherokee Co. Rwd #13 Cherokee County |
1,640 | 1 | 0 | |
|
Carnegie Caddo County |
1,637 | 1 | 0 | |
|
Minco Grady County |
1,632 | 2 | 0 | |
|
Cherokee Alfalfa County |
1,630 | 2 | 0 | |
|
Logan CO Rws & Swmd #3 Logan County |
1,618 | 4 | 0 | |
|
Beckham CO Rwd # 3 Beckham County |
1,617 | 2 | 0 | |
|
McCurtain Co. Rwd #5 (hochatown) McCurtain County |
1,614 | 1 | 0 | |
|
Stephens CO Rwd #3 (meridian) Stephens County |
1,610 | 1 | 1 | |
|
Kingston Pwa Marshall County |
1,600 | 3 | 0 | |
|
Locust Grove Pwa Mayes County |
1,600 | 5 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.