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EWG's Tap Water Database — 2019 UPDATE

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What About Lead?

City of Duncanville - 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: 30

Highest level detected in 2017: 32.0 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
2017-07-21Q173191001532.0 ppb
2017-07-24Q17319100209.90 ppb
2017-07-21Q17319100017.50 ppb
2017-07-21Q17319100102.60 ppb
2017-07-25Q17319100141.50 ppb
2017-07-26Q17346370041.20 ppb
2017-07-24Q1731910013ND
2017-09-01Q1741075001ND
2017-07-26Q1734637002ND
2017-07-27Q1734637010ND
2017-07-27Q1734637008ND
2017-07-28Q1734637003ND
2017-08-07Q1734637005ND
2017-08-29Q1741075003ND
2017-08-29Q1741075004ND
2017-08-29Q1741075002ND
2017-07-20Q1731910008ND
2017-07-21Q1731910018ND
2017-07-21Q1731910019ND
2017-07-21Q1731910017ND
2017-07-21Q1731910016ND
2017-07-21Q1731910012ND
2017-07-21Q1731910011ND
2017-07-21Q1731910009ND
2017-07-21Q1731910007ND
2017-07-21Q1731910006ND
2017-07-21Q1731910005ND
2017-07-21Q1731910002ND
2017-07-21Q1731910004ND
2017-07-21Q1731910003ND
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LESS

Read more about lead here.