Styrene violations in Oklahoma
71 active public water systems in Oklahoma had a Styrene violation in the past three years. What Styrene is and why it matters.
Health effects: Chronic exposure to styrene is associated with liver, kidney, and nervous system effects. EPA classifies it as a possible human carcinogen (Group C) based on limited animal evidence. Short-term exposure can cause irritation of the eyes, nose, and throat. Long-term exposure above the MCL is the primary concern for public water system violations.
Systems with a Styrene violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Roger Mills Rws & Swmd #1 Roger Mills County |
200 | 10 | 2 | |
|
Harper CO Rwd #1 Harper County |
198 | 10 | 1 | |
|
Quinlan Community Rwd #1 Woodward County |
185 | 4 | 0 | |
|
Sasakwa Pwa Seminole County |
150 | 6 | 2 | |
|
Ottawa CO Rwd # 3 Ottawa County |
140 | 10 | 4 | |
|
Surrey Hills Texas County |
87 | 14 | 4 | |
|
Freedom Farms Cleveland County |
85 | 7 | 3 | |
|
Salt Creek Camp South Choctaw County |
80 | 4 | 0 | |
|
Mountain Village Development Comanche County |
77 | 7 | 1 | |
|
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 | |
|
England Shores MHP Delaware County |
55 | 8 | 3 | |
|
Colbert Boat Club Bryan County |
54 | 4 | 0 | |
|
Walnut Park Estates Osage County |
42 | 11 | 4 | |
|
Timber Creek MHP East & West Pottawatomie County |
40 | 10 | 2 | |
|
Canoe Mountain Water System Cherokee County |
37 | 12 | 2 | |
|
Rock Creek Logan County |
33 | 12 | 5 | |
|
Eastside MHP Grady County |
32 | 9 | 4 | |
|
Kidz Club Child Care Center Grady County |
32 | 6 | 2 | |
|
Oklahoma City North Canadian Stp Oklahoma County |
30 | 7 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Styrene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Styrene 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.