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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Parnell Water Supply - 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: 22

Highest level detected in 2019: 4.0 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, 2019

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

DateLab IDResult
2019-12-27OE9129464.00 ppb
2019-06-12OE8203692.00 ppb
2019-06-15OE8263352.00 ppb
2019-12-28OE9129511.000 ppb
2019-06-12OE8203701.000 ppb
2019-06-26OE8297111.000 ppb
2019-06-26OE829712ND
2019-12-28OE912952ND
2019-12-28OE912950ND
2019-12-28OE912949ND
2019-12-27OE912948ND
2019-12-27OE912947ND
2019-12-27OE912945ND
2019-12-27OE912944ND
2019-12-27OE912943ND
2019-04-03OE789415ND
2019-06-26OE829710ND
2019-06-17OE826333ND
2019-06-15OE826336ND
2019-06-15OE826334ND
2019-06-12OE820368ND
2019-06-12OE820367ND
MORE
LESS

Read more about lead here.