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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Grain Valley - 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: 0.0 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
2019-09-20AD56033ND
2019-09-24AD56040ND
2019-09-24AD56027ND
2019-09-24AD56031ND
2019-09-24AD56023ND
2019-09-24AD56028ND
2019-09-23AD56029ND
2019-09-23AD56036ND
2019-09-23AD56041ND
2019-09-23AD56039ND
2019-09-23AD56038ND
2019-09-20AD56032ND
2019-09-20AD56042ND
2019-09-20AD56022ND
2019-09-20AD56034ND
2019-06-20AD44488ND
2019-09-20AD56037ND
2019-09-20AD56035ND
2019-09-20AD56025ND
2019-09-20AD56021ND
2019-09-19AD56030ND
2019-09-19AD56024ND
2019-09-19AD56026ND
2019-09-19AD56043ND
2019-06-30AD44477ND
2019-06-27AD44480ND
2019-06-25AD44472ND
2019-06-23AD44500ND
2019-06-20AD44473ND
2019-06-20AD44487ND
MORE
LESS

Read more about lead here.