Tapcensus

Glyphosate violations in Oklahoma

135 active public water systems in Oklahoma had a Glyphosate violation in the past three years. What Glyphosate is and why it matters.

Health effects: Long-term exposure above the MCL is associated with kidney and reproductive damage in animal studies. EPA's current classification does not designate glyphosate as a human carcinogen, though IARC classifies it as probably carcinogenic (Group 2A). This classification remains a subject of active scientific and regulatory debate.

Systems with a Glyphosate violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Blue Quail Estates
Canadian County
350 2 0
Wakita
Grant County
344 1 0
Ralston
Pawnee County
335 3 0
Nicoma Park
Oklahoma County
318 4 0
Woodward CO Rwd #1
Woodward County
315 4 0
Lakewood Village
Delaware County
293 7 2
Wildfire Estates Homeowners
Cleveland County
285 8 3
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
Hardesty Utilities
Texas County
277 5 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
Spring Cove RV Park&marina Onlake Hudson
Mayes County
225 10 2
Aline, Town of
Alfalfa County
214 5 0
Cherokee Co. Rwd # 16 (wildcat)
Cherokee County
200 6 0
Cherokee Co. Rwd # 16 (woodhaven)
Cherokee County
200 6 0
Summit Ridge Retirement Center, Inc.
Oklahoma County
200 1 0
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
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
Felt School
Cimarron County
100 5 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
About this data

A system is counted once if any of its violations in the past three years involved Glyphosate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Glyphosate 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.