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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

City of Fremont - 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: 30

Highest level detected in 2019: 6.3 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
2019-08-146156456.32 ppb
2019-09-096156505.14 ppb
2019-08-226156524.17 ppb
2019-08-206156553.13 ppb
2019-09-186156613.05 ppb
2019-08-226156541.92 ppb
2019-09-196156621.90 ppb
2019-08-296156511.46 ppb
2019-08-156156571.40 ppb
2019-08-146156440.877 ppb
2019-09-136156650.798 ppb
2019-08-136156380.747 ppb
2019-08-156156430.717 ppb
2019-08-146156400.711 ppb
2019-08-296156490.637 ppb
2019-08-146156410.581 ppb
2019-09-176156640.547 ppb
2019-08-146156470.537 ppb
2019-08-146156420.502 ppb
2019-08-23615653ND
2019-09-17615660ND
2019-09-17615666ND
2019-09-19615663ND
2019-09-17615659ND
2019-09-17615658ND
2019-09-11615667ND
2019-08-29615648ND
2019-08-15615656ND
2019-08-14615646ND
2019-08-14615639ND
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Read more about lead here.