Lead and Copper Rule (LCR) violations in Oklahoma
133 active public water systems in Oklahoma had a Lead and Copper Rule (LCR) violation in the past three years, 132 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bixby Public Works Authority Tulsa County |
18,750 | 2 | 1 | |
|
Mustang, City of Canadian County |
18,576 | 5 | 2 | |
|
Coweta Pwa Wagoner County |
9,450 | 11 | 1 | |
|
Wagoner Wagoner County |
7,982 | 3 | 2 | |
|
Newcastle McClain County |
7,900 | 2 | 1 | |
|
Sapulpa Rural Water Company Creek County |
5,810 | 1 | 1 | |
|
Wagoner Co. Rwd #9 Wagoner County |
4,363 | 5 | 0 | |
|
Spencer Oklahoma County |
3,746 | 5 | 1 | |
|
Consolidated Rwd #3 Creek CO Creek County |
3,500 | 3 | 1 | |
|
Elgin Pwa Comanche County |
3,300 | 9 | 1 | |
|
Drumright Creek County |
2,876 | 2 | 1 | |
|
Comanche CO Rwd #1 Comanche County |
2,800 | 3 | 1 | |
|
Hinton Caddo County |
2,600 | 5 | 1 | |
|
Hominy Osage County |
2,584 | 9 | 3 | |
|
Mayes CO Rwd # 9 Mayes County |
2,578 | 6 | 2 | |
|
Grady CO Rwd #7 (ninnekah) Grady County |
2,425 | 4 | 1 | |
|
Mayes CO Rwd # 3 Mayes County |
2,400 | 5 | 1 | |
|
Hollis Harmon County |
2,264 | 3 | 1 | |
|
Waurika Public Works Authority Jefferson County |
2,100 | 5 | 2 | |
|
McClain CO Rwd # 8 McClain County |
1,897 | 3 | 1 | |
|
Langston Pwa Logan County |
1,670 | 6 | 1 | |
|
Wilson Municipal Authority Carter County |
1,600 | 4 | 1 | |
|
Oilton Creek County |
1,435 | 14 | 5 | |
|
Maysville Garvin County |
1,212 | 8 | 3 | |
|
Harmon Water Corp Harmon County |
1,132 | 3 | 1 | |
|
Nowata CO Rwd #7 Nowata County |
1,050 | 6 | 5 | |
|
Sequoyah Co. Rwd #3 Sequoyah County |
1,040 | 2 | 2 | |
|
Adair CO Rwd #4 Adair County |
1,025 | 1 | 1 | |
|
Fletcher Comanche County |
1,022 | 3 | 1 | |
|
Major County Rwd #1 Major County |
1,000 | 6 | 1 | |
|
Pecan Valley Rwd Comanche County |
1,000 | 3 | 1 | |
|
Oklahoma State Reformatory Greer County |
999 | 5 | 1 | |
|
Waynoka Woods County |
993 | 3 | 1 | |
|
Kay CO Rwd #5 (dale Water Corp) Kay County |
765 | 4 | 1 | |
|
Delaware CO Rwsg&swm District 11 Delaware County |
750 | 3 | 1 | |
|
Copan Pwa Washington County |
733 | 12 | 3 | |
|
Alex Grady County |
635 | 8 | 2 | |
|
Alfalfa CO Rws & Swmd #1 North Alfalfa County |
600 | 2 | 1 | |
|
Elm Bend Rwd INC Nowata County |
600 | 3 | 1 | |
|
Covington Garfield County |
553 | 3 | 1 | |
|
Alfalfa CO Rws & Swmd #1 Alfalfa County |
550 | 2 | 1 | |
|
Dill City Washita County |
526 | 7 | 1 | |
|
Canute Washita County |
524 | 9 | 1 | |
|
Ochelata Utility Authority Washington County |
494 | 6 | 1 | |
|
Olive School Creek County |
465 | 6 | 3 | |
|
Stonewall Pwa Pontotoc County |
465 | 2 | 1 | |
|
Delaware Nowata County |
456 | 5 | 2 | |
|
Boynton Pwa Muskogee County |
450 | 4 | 2 | |
|
Mayes CO Rwd # 8 Mayes County |
450 | 3 | 1 | |
|
Nowata CO Rwd #6 Nowata County |
450 | 4 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) 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.