Gross Alpha, Excl. Radon and U violations in Oklahoma
109 active public water systems in Oklahoma had a Gross Alpha, Excl. Radon and U violation in the past three years. What Gross Alpha, Excl. Radon and U is and why it matters.
Systems with a Gross Alpha, Excl. Radon and U violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Moore Public Works Authority Cleveland County |
55,083 | 4 | 0 | |
|
Tinker Air Force Base Oklahoma County |
24,645 | 4 | 1 | |
|
Weatherford Custer County |
10,833 | 5 | 1 | |
|
Coweta Pwa Wagoner County |
9,450 | 11 | 1 | |
|
Jefferson CO Cons Rwd #1 Jefferson County |
8,398 | 3 | 0 | |
|
Piedmont Municipal Authority Canadian County |
7,542 | 6 | 1 | |
|
Seminole Seminole County |
6,899 | 1 | 0 | |
|
Noble Utilities Authority Cleveland County |
5,750 | 4 | 0 | |
|
Deer Creek Rural Water Corp Oklahoma County |
5,500 | 1 | 0 | |
|
Lone Grove Carter County |
4,863 | 6 | 1 | |
|
Wagoner Co. Rwd #5 Wagoner County |
4,251 | 1 | 0 | |
|
Harrah Oklahoma County |
4,190 | 3 | 0 | |
|
Grady CO Rwd #6 Grady County |
3,930 | 11 | 0 | |
|
Caddo CO Rwd #3 Caddo County |
3,900 | 2 | 0 | |
|
Spencer Oklahoma County |
3,746 | 5 | 1 | |
|
Bristow Municipal Authority Creek County |
3,700 | 6 | 1 | |
|
Elgin Pwa Comanche County |
3,300 | 9 | 1 | |
|
Pawnee CO Rwd #1 Pawnee County |
3,200 | 1 | 0 | |
|
Joseph Harp Corr Inst Cleveland County |
3,000 | 4 | 0 | |
|
McLoud Pottawatomie County |
2,939 | 1 | 0 | |
|
Commerce Ottawa County |
2,645 | 7 | 1 | |
|
Hinton Caddo County |
2,600 | 5 | 1 | |
|
Perkins Payne County |
2,572 | 3 | 0 | |
|
Prague Lincoln County |
2,395 | 7 | 1 | |
|
Choctaw Co. Rwd #1 Choctaw County |
2,300 | 4 | 0 | |
|
Pawnee CO Rwd #2 Pawnee County |
1,775 | 2 | 0 | |
|
Jones Oklahoma County |
1,727 | 3 | 0 | |
|
Garvin CO Rwd # 6 (wells) Garvin County |
1,680 | 2 | 0 | |
|
Comanche Public Works Authority Stephens County |
1,649 | 5 | 0 | |
|
Logan CO Rws & Swmd #3 Logan County |
1,618 | 4 | 0 | |
|
Beckham CO Rwd # 3 Beckham County |
1,617 | 2 | 0 | |
|
Apache Caddo County |
1,521 | 4 | 0 | |
|
Konawa Pwa Seminole County |
1,479 | 5 | 1 | |
|
Garvin CO Rwd #1 Garvin County |
1,445 | 1 | 0 | |
|
Oilton Creek County |
1,435 | 14 | 5 | |
|
Muskogee Co. Rwd #3 Muskogee County |
1,300 | 4 | 0 | |
|
Shattuck Ellis County |
1,200 | 6 | 0 | |
|
Okfuskee Co. Rwd #1 (boley) Okfuskee County |
1,000 | 5 | 2 | |
|
Woodward CO Rwd #2 Woodward County |
920 | 5 | 0 | |
|
Beckham CO Rwd # 2 Beckham County |
857 | 6 | 1 | |
|
Roger Mills Rwd # 2 (red Star) Roger Mills County |
800 | 5 | 0 | |
|
Sterling Pwa Comanche County |
762 | 2 | 0 | |
|
Dewey CO Rwd #3 Woodward County |
755 | 4 | 2 | |
|
Canadian CO Rwd # 1 Canadian County |
750 | 3 | 0 | |
|
Ottawa CO Rwd #5 Ottawa County |
750 | 7 | 0 | |
|
Copan Pwa Washington County |
733 | 12 | 3 | |
|
Alex Grady County |
635 | 8 | 2 | |
|
Calumet Pwa Canadian County |
600 | 4 | 0 | |
|
Ottawa CO Rwd #6 Ottawa County |
560 | 6 | 1 | |
|
Dill City Washita County |
526 | 7 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Gross Alpha, Excl. Radon and U, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Gross Alpha, Excl. Radon and U alone.
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.