2,4-D violations in Oklahoma
131 active public water systems in Oklahoma had a 2,4-D violation in the past three years. What 2,4-D is and why it matters.
Health effects: Chronic exposure to 2,4-D is associated with kidney, liver, and adrenal gland damage in animal studies. IARC classifies it as possibly carcinogenic to humans (Group 2B); EPA's classification is not likely to be carcinogenic under current guidelines. Individuals with kidney or liver conditions may face greater risk from long-term exposure.
Systems with a 2,4-D violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Jones State Central Middle School Oklahoma County |
280 | 5 | 2 | |
|
Roosevelt Pwa Kiowa County |
280 | 4 | 0 | |
|
Eakly Development Corp Caddo County |
277 | 4 | 0 | |
|
Cherokee Co. Rwd # 16 (chicken Creek) Cherokee County |
272 | 6 | 0 | |
|
Family of Faith Pottawatomie County |
250 | 6 | 1 | |
|
Lookeba Sickles School Caddo County |
250 | 8 | 2 | |
|
Breckinridge Pwa Garfield County |
239 | 6 | 1 | |
|
Jet Alfalfa County |
230 | 5 | 1 | |
|
Spring Cove RV Park&marina Onlake Hudson Mayes County |
225 | 10 | 2 | |
|
St. Louis Rwd Pottawatomie County |
225 | 2 | 1 | |
|
Roger Mills Rws & Swmd #1 Roger Mills County |
200 | 10 | 2 | |
|
Summit Ridge Retirement Center, Inc. Oklahoma County |
200 | 1 | 0 | |
|
Ames Major County |
199 | 3 | 0 | |
|
Meno Major County |
195 | 3 | 1 | |
|
Blue Quail Logan County Logan County |
188 | 2 | 1 | |
|
Shell Creek Rwd #12, McIntosh Co. McIntosh County |
175 | 5 | 2 | |
|
Sharon Utilities Woodward County |
175 | 10 | 2 | |
|
Sherwood Forest Mobile Estates Oklahoma County |
172 | 6 | 1 | |
|
Hallett Public Works Authority Pawnee County |
168 | 4 | 0 | |
|
Sooner Utilities-Crosby #1 Oklahoma County |
168 | 4 | 1 | |
|
Kenefic Bryan County |
165 | 5 | 0 | |
|
Potters Trailer Park Beckham County |
150 | 6 | 0 | |
|
Holiday Shores Prop Assn Delaware County |
136 | 3 | 1 | |
|
Gypsy School Creek County |
132 | 5 | 2 | |
|
Foss Washita County |
127 | 7 | 0 | |
|
Coffee Creek Mhp, LLC Oklahoma County |
120 | 1 | 0 | |
|
Skyline MHP Oklahoma County |
120 | 6 | 1 | |
|
Tri-County Electric Cooperative Texas County |
120 | 3 | 0 | |
|
Willow Greer County |
114 | 8 | 1 | |
|
Choctaw Estates, LLC Oklahoma County |
105 | 4 | 1 | |
|
Manchester Grant County |
104 | 6 | 2 | |
|
Delling #2 LLC Choctaw · Oklahoma County |
100 | 3 | 0 | |
|
Pine Country Living MHP Pottawatomie County |
100 | 8 | 0 | |
|
White Rock School Lincoln County |
100 | 4 | 0 | |
|
Peppers Ranch Logan County |
99 | 6 | 1 | |
|
Willow Creek MHP Oklahoma County |
99 | 3 | 0 | |
|
4t Investors LLC Beaver County |
98 | 5 | 1 | |
|
Sooner Utilities-Crutcho Oklahoma County |
93 | 6 | 2 | |
|
Brooksville Pottawatomie County |
90 | 10 | 4 | |
|
Absentee Shawnee Health Center Cleveland County |
87 | 3 | 0 | |
|
Beaver CO Rwd #2 (gate) Beaver County |
87 | 7 | 4 | |
|
Surrey Hills Texas County |
87 | 14 | 4 | |
|
Sooner Utilities-Robertson Oklahoma County |
83 | 2 | 0 | |
|
Whippoorwill Estates McClain County |
83 | 1 | 0 | |
|
Thirsty Water Corp Greer County |
81 | 3 | 0 | |
|
Grady CO Rwd #3 Grady County |
80 | 10 | 4 | |
|
Salt Creek Camp South Choctaw County |
80 | 4 | 0 | |
|
Mountain Village Development Comanche County |
77 | 7 | 1 | |
|
Traverse Wind Energy, LLC Custer County |
75 | 2 | 0 | |
|
Trucks and Teacups Daycare Cleveland County |
75 | 6 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved 2,4-D, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,4-D 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.