Atrazine violations in Oklahoma
110 active public water systems in Oklahoma had a Atrazine violation in the past three years. What Atrazine is and why it matters.
Health effects: Chronic exposure to atrazine is associated with endocrine disruption — particularly effects on reproductive hormones — and cardiovascular and adrenal effects in animal studies. EPA classifies atrazine as not likely to be a human carcinogen under current guidelines, though its endocrine-disrupting properties remain under research scrutiny. Fetuses and infants may be most sensitive to hormonal effects.
Systems with a Atrazine violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Meno Major County |
195 | 3 | 1 | |
|
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 | |
|
Dewey CO Rwd #2 Dewey County |
150 | 5 | 0 | |
|
Potters Trailer Park Beckham County |
150 | 6 | 0 | |
|
Holiday Shores Prop Assn Delaware County |
136 | 3 | 1 | |
|
Middleberg School Grady County |
135 | 2 | 0 | |
|
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 | |
|
Willow Greer County |
114 | 8 | 1 | |
|
Choctaw Estates, LLC Oklahoma County |
105 | 4 | 1 | |
|
Manchester Grant County |
104 | 6 | 2 | |
|
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 | |
|
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 | |
|
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 | |
|
Suburban MHP Cherokee County |
50 | 8 | 2 | |
|
Sntp-Rivermist Seminole County |
49 | 4 | 1 | |
|
Steelman Estates Pottawatomie County |
45 | 4 | 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 |
About this data
A system is counted once if any of its violations in the past three years involved Atrazine, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Atrazine 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.