Tapcensus

Lead and Copper Rule (LCR) violations in Oklahoma

133 active public water systems in Oklahoma had a Lead and Copper Rule (LCR) violation in the past three years, 132 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.

Health effects: Lead: no safe level for children. Causes irreversible neurological damage, impaired cognitive development, behavioral problems, and reduced IQ in children under 6. In adults: hypertension, cardiovascular disease, kidney damage. Copper: acute gastrointestinal distress at high levels; liver/kidney damage at very high chronic levels.

Systems with a Lead and Copper Rule (LCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Strike-Axe Hwy 60
Osage County
450 1 1
Wynona
Osage County
450 4 1
Tryon
Lincoln County
448 11 4
Deerfield Springs
Rogers County
445 5 2
Lone Wolf
Kiowa County
440 5 1
North Miami
Ottawa County
433 7 3
Drummond
Garfield County
405 1 1
Wanette Public Works Authority
Pottawatomie County
402 6 1
Medicine Park
Comanche County
382 5 2
Ripley Pwa
Payne County
376 6 1
Clinton-Sherman Industrial Airpark
Washita County
358 5 0
Carmen Public Works Authority
Alfalfa County
355 11 3
Fargo
Ellis County
326 7 1
Mill Creek
Johnston County
310 4 1
Osage CO Rwd #18 (evergreen)
Osage County
302 4 2
Grady CO Rwd #1
Grady County
300 7 3
Lakewood Village
Delaware County
293 7 2
Red Rock
Noble County
293 6 1
Wildfire Estates Homeowners
Cleveland County
285 8 3
Jones State Central Middle School
Oklahoma County
280 5 2
Pittsburg
Pittsburg County
280 5 1
Manitou
Tillman County
278 6 1
Freedom
Woods County
275 2 1
Strike Axe (chimney Rock)
Osage County
275 2 1
Washington CO Rwd #7
Washington County
258 6 2
Lookeba Sickles School
Caddo County
250 8 2
Jet
Alfalfa County
230 5 1
Mulhall
Logan County
225 5 1
Spring Cove RV Park&marina Onlake Hudson
Mayes County
225 10 2
Gould Pwa
Harmon County
206 1 1
Nowata CO Rwd #2
Nowata County
205 4 3
McIntosh Co. Rwd #7
McIntosh County
200 3 2
Roger Mills Rws & Swmd #1
Roger Mills County
200 10 2
Harper CO Rwd #1
Harper County
198 10 1
Blue Quail Logan County
Logan County
188 2 1
Abes RV Park
Oklahoma County
175 5 2
Latimer Co. Rwd #3
Latimer County
175 7 5
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
Carriage Hills
Delaware County
160 3 1
Hickory Meadows
Delaware County
157 8 5
Leisure Shores Water System Assn, INC
Delaware County
150 2 1
Dacoma Pwa
Woods County
148 6 1
Ottawa CO Rwd # 3
Ottawa County
140 10 4
Holiday Shores Prop Assn
Delaware County
136 3 1
Golden Oaks Home Owners Assn
Carter County
135 8 4
Gypsy School
Creek County
132 5 2
Foss
Washita County
127 7 0
Strikeaxe Airport
Osage County
125 2 1
About this data

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