Lead and Copper Rule Revisions (LCRR) violations in Oklahoma
137 active public water systems in Oklahoma had a Lead and Copper Rule Revisions (LCRR) violation in the past three years, 137 of them in the latest quarter of EPA's data. What Lead and Copper Rule Revisions (LCRR) is and why it matters.
Systems with a Lead and Copper Rule Revisions (LCRR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Chickasha Municipal Authority Grady County |
16,036 | 5 | 1 | |
|
Sequoyah Co. Rwd #8 Sequoyah County |
13,460 | 3 | 1 | |
|
Rogers CO Rwd # 3 Lake Plant Rogers County |
10,470 | 4 | 2 | |
|
Rogers CO Rwd # 4 Rogers County |
7,725 | 3 | 0 | |
|
Stephens CO Rwd #5 Stephens County |
6,426 | 2 | 2 | |
|
Mayes CO Rwd #4 Mayes County |
4,183 | 4 | 0 | |
|
Dewey Public Works Authority Washington County |
3,490 | 2 | 0 | |
|
Chandler Lincoln County |
3,142 | 2 | 2 | |
|
Haskell Co. Water Company Haskell County |
3,000 | 6 | 1 | |
|
Commerce Ottawa County |
2,645 | 7 | 1 | |
|
Mayes CO Rwd # 9 Mayes County |
2,578 | 6 | 2 | |
|
Walters Public Works Authority Cotton County |
2,551 | 2 | 1 | |
|
Washington CO Rwd #2 Washington County |
2,250 | 1 | 1 | |
|
Western Carter CO Water Corp Carter County |
2,000 | 2 | 1 | |
|
Peggs Water Company Cherokee County |
1,925 | 3 | 1 | |
|
Spiro East Water Association Le Flore County |
1,817 | 5 | 1 | |
|
McIntosh Co. Rws & Swmd #9 McIntosh County |
1,761 | 3 | 1 | |
|
Leflore Co. Rwd #3 Le Flore County |
1,643 | 5 | 1 | |
|
Rogers CO Rwd # 6 Rogers County |
1,560 | 3 | 3 | |
|
Apache Caddo County |
1,521 | 4 | 0 | |
|
Osage CO Rwd #21 Osage County |
1,500 | 9 | 4 | |
|
Boise City Pwa Cimarron County |
1,483 | 2 | 1 | |
|
Vian Sequoyah County |
1,445 | 1 | 1 | |
|
Oilton Creek County |
1,435 | 14 | 5 | |
|
Hydro Pwa Caddo County |
1,060 | 5 | 1 | |
|
Oakland Pwa Marshall County |
1,050 | 4 | 2 | |
|
Sequoyah Co. Rwd #3 Sequoyah County |
1,040 | 2 | 2 | |
|
Hulbert Pwa Cherokee County |
1,007 | 2 | 1 | |
|
Okfuskee Co. Rwd #1 (boley) Okfuskee County |
1,000 | 5 | 2 | |
|
McCurtain Co. Rwd #9 McCurtain County |
999 | 2 | 0 | |
|
Pond Creek Grant County |
982 | 3 | 1 | |
|
Osage CO Rwd # 1 Osage County |
930 | 3 | 2 | |
|
Tipton Tillman County |
916 | 7 | 3 | |
|
Quapaw Ottawa County |
906 | 3 | 0 | |
|
Mountain View Pwa Kiowa County |
880 | 5 | 2 | |
|
Choctaw Co. Rwsg & Swmd #6 Choctaw County |
850 | 5 | 3 | |
|
Savanna Pittsburg County |
800 | 5 | 2 | |
|
Okay Pwa Wagoner County |
767 | 2 | 1 | |
|
Dewey CO Rwd #3 Woodward County |
755 | 4 | 2 | |
|
McCurtain Co. Rwd #2 McCurtain County |
755 | 3 | 0 | |
|
LE Ann Water Washington County |
750 | 5 | 2 | |
|
Copan Pwa Washington County |
733 | 12 | 3 | |
|
Calumet Pwa Canadian County |
600 | 4 | 0 | |
|
Creek CO Rwd # 4 Creek County |
575 | 4 | 0 | |
|
Lincoln CO Rwd #3 Lincoln County |
575 | 3 | 2 | |
|
Keota Pwa Haskell County |
564 | 6 | 1 | |
|
Ramona Public Works Authority Washington County |
564 | 4 | 2 | |
|
Osage CO Rwd # 5 Osage County |
561 | 4 | 2 | |
|
McCurtain Municipal Authority Haskell County |
560 | 3 | 1 | |
|
Mayes CO Rwd # 7 Mayes County |
538 | 3 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule Revisions (LCRR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule Revisions (LCRR) 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.