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 |
|---|---|---|---|---|
|
Merritt Mobile Home & RV Park Beckham County |
70 | 6 | 1 | |
|
Osage Park Addn Prop Osage County |
65 | 12 | 5 | |
|
Oak Ridge Estates I & II Water Assoc. Delaware County |
62 | 11 | 4 | |
|
Freedom From Addiction Through Christ Ottawa County |
60 | 5 | 1 | |
|
Okla Natl Stockyards Oklahoma County |
60 | 6 | 1 | |
|
England Shores MHP Delaware County |
55 | 8 | 3 | |
|
Kids USA of Newalla Oklahoma County |
52 | 5 | 3 | |
|
Country MHP Grady County |
50 | 5 | 2 | |
|
Mason Trailer Park Texas County |
50 | 3 | 0 | |
|
Suburban MHP Cherokee County |
50 | 8 | 2 | |
|
Sntp-Rivermist Seminole County |
49 | 4 | 1 | |
|
Steelman Estates Pottawatomie County |
45 | 4 | 0 | |
|
Tumbleweed Sagebrush Site Ellis County |
45 | 3 | 0 | |
|
Western Farmers Plant Woodward County |
45 | 2 | 0 | |
|
Walnut Park Estates Osage County |
42 | 11 | 4 | |
|
Boiling Springs Estates Woodward County |
40 | 2 | 1 | |
|
Timber Creek MHP East & West Pottawatomie County |
40 | 10 | 2 | |
|
North Latta Park, LLC Oklahoma County |
39 | 7 | 0 | |
|
Canoe Mountain Water System Cherokee County |
37 | 12 | 2 | |
|
New Life Ranch, Flint Valley Delaware County |
35 | 1 | 0 | |
|
Rock Creek Logan County |
33 | 12 | 5 | |
|
Eastside MHP Grady County |
32 | 9 | 4 | |
|
Country Haven MHP Oklahoma County |
30 | 8 | 2 | |
|
Lazy E Training Center Logan County |
30 | 6 | 1 | |
|
Oklahoma City North Canadian Stp Oklahoma County |
30 | 7 | 1 | |
|
Select 9 Site Ellis County |
30 | 2 | 0 | |
|
Adair CO Rws & Swmd #6 Adair County |
27 | 3 | 0 | |
|
Grandview Village Delaware County |
24 | 5 | 0 | |
|
Skyview Mobile Home Park Grady County |
24 | 12 | 5 | |
|
Poteau Valley Improvement Authority Le Flore County |
10 | 4 | 0 | |
|
Pittsburg Co. Water Authority Pittsburg County |
5 | 6 | 2 |
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.