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EWG's Tap Water Database — 2019 UPDATE

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What About Lead?

City of Donna - click here to return to the utility page.

According to EWG’s analysis of 2017 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 2017: 31

Highest level detected in 2017: 12.0 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, 2017

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

DateLab IDResult
2017-08-04Q173464802512.0 ppb
2017-01-10AD63882ND
2017-08-04Q1734648015ND
2017-08-04Q1734648016ND
2017-08-04Q1734648017ND
2017-08-04Q1734648018ND
2017-08-04Q1734648019ND
2017-08-04Q1734648020ND
2017-08-04Q1734648028ND
2017-08-04Q1734648027ND
2017-08-04Q1734648026ND
2017-08-04Q1734648024ND
2017-08-04Q1734648023ND
2017-08-04Q1734648022ND
2017-08-04Q1734648014ND
2017-08-04Q1734648013ND
2017-08-04Q1734648012ND
2017-08-02Q1734648009ND
2017-08-02Q1734648010ND
2017-08-02Q1734648001ND
2017-08-02Q1734648002ND
2017-08-02Q1734648003ND
2017-08-02Q1734648004ND
2017-08-02Q1734648005ND
2017-08-02Q1734648006ND
2017-08-02Q1734648007ND
2017-08-02Q1734648008ND
2017-08-04Q1734648030ND
2017-08-04Q1734648029ND
2017-08-04Q1734648011ND
2017-08-04Q1734648021ND
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Read more about lead here.