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National Drinking Water Database

Lead (total) in Oklahoma

Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits. [read more]

The Most Polluted Communities in Oklahoma

307 water utilities reported detecting Lead (total) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Lead (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Southern Oaks Utilities
Stillwater, OK
501 of 717.29 ppb
(0 to 121 ppb)
2Sooner Utilities - Rjr Water Co
Oklahoma City, OK
1201 of 212.22 ppb
(0 to 24.44 ppb)
3Browns Country Village
Liberal, OK
301 of 211.5 ppb
(0 to 23 ppb)
Pittsburg, OK
2803 of 310.84 ppb
(2.72 to 23.23 ppb)
5Mountain View Pwa
Mountain View, OK
8801 of 29.17 ppb
(0 to 18.34 ppb)
6Conners Correctional Center
Hominy, OK
1,0501 of 18.8 ppb
(8.8 ppb)
7Colcord Pwa
Colcord, OK
8191 of 18.32 ppb
(8.32 ppb)
8Harmon Water Corp
Gould, OK
1,1322 of 28.13 ppb
(7.5 to 8.75 ppb)
9Atoka Co Rwd # 3 (Caney)
Caney, OK
5068 of 97.76 ppb
(0 to 25 ppb)
10Wagoner Co Rwd # 9
Wagoner, OK
3,5501 of 17 ppb
(7 ppb)

Health Based Limits for Lead (total)

Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.2 ppb

Violation Summary for Lead (total) in Oklahoma

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Oklahoma since 2004

Violation TypeNumber of Violations
Failure to monitor regularly53