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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Oklahoma City - click here to return to the utility page.

According to EWG’s analysis of 2019 lead testing results, this utility complied with federal water quality regulations for lead. Under the federal Lead and Copper Rule, lead concentrations must be below 15 parts per billion (ppb) in 90 percent of households sampled. If this legal limit is exceeded, the water utility must apply measures to control lead leaching from water pipes.

Number of lead samples taken in 2019: 68

Highest level detected in 2019: 12.9 ppb

Levels of lead detected


Complying with the EPA's lead rules doesn't mean that the water is safe for children to drink. The EPA’s recent modeling suggests that lead concentrations in the 3.8 to 15 ppb range can put a formula-fed baby at risk of elevated blood lead levels. In 2009, the California Office of Environmental Health Hazard Assessment set a public health goal level of 0.2 ppb for lead in drinking water to protect against even subtle IQ loss in children.

Lead Results, 2019

Samples in red indicate that the sample is above the EPA action level.

DateLab IDResult
2019-07-0300090013492312.9 ppb
2019-07-070009001349283.83 ppb
2019-07-010009001348613.44 ppb
2019-07-180009001348733.34 ppb
2019-07-230009001348793.30 ppb
2019-07-020009001348653.12 ppb
2019-07-020009001348682.94 ppb
2019-07-080009001348822.82 ppb
2019-07-010009001348642.78 ppb
2019-07-070009001348722.78 ppb
2019-07-280009001349302.72 ppb
2019-07-020009001348742.63 ppb
2019-07-020009001348782.59 ppb
2019-07-030009001349292.30 ppb
2019-07-080009001356942.29 ppb
2019-08-040009001356842.27 ppb
2019-07-050009001348812.16 ppb
2019-07-030009001356932.15 ppb
2019-07-130009001349252.07 ppb
2019-07-010009001356912.02 ppb
2019-06-280009001356951.88 ppb
2019-07-050009001348851.84 ppb
2019-07-150009001348841.71 ppb
2019-07-230009001349191.56 ppb
2019-07-030009001356831.54 ppb
2019-07-100009001349241.41 ppb
2019-07-020009001349221.41 ppb
2019-07-100009001349211.01 ppb
2019-07-09000900134916ND
2019-07-10000900134876ND
2019-07-11000900134877ND
2019-08-18000900134920ND
2019-08-04000900134917ND
2019-07-13000900134888ND
2019-07-07000900134883ND
2019-07-15000900135682ND
2019-07-15000900135686ND
2019-07-16000900134869ND
2019-07-17000900134886ND
2019-08-18000900134915ND
2019-08-15000900134926ND
2019-08-06000900134932ND
2019-07-22000900134931ND
2019-07-26000900135696ND
2019-07-03000900134933ND
2019-06-28000900135692ND
2019-07-02000900134862ND
2019-07-02000900134863ND
2019-07-02000900134867ND
2019-07-02000900134870ND
2019-07-02000900134880ND
2019-07-02000900134911ND
2019-07-02000900134913ND
2019-07-02000900135681ND
2019-07-03000900134866ND
2019-07-03000900134875ND
2019-07-08000900135688ND
2019-07-04000900134871ND
2019-07-04000900134887ND
2019-07-04000900135687ND
2019-07-05000900134914ND
2019-07-05000900135689ND
2019-06-28000900135690ND
2019-07-07000900134918ND
2019-07-08000900134909ND
2019-07-08000900134910ND
2019-07-08000900134927ND
2019-07-08000900135685ND
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Read more about lead here.