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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

City of Pittsburg - 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: 31

Highest level detected in 2019: 1.6 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
2019-08-0212199811.60 ppb
2019-08-2212292701.60 ppb
2019-08-191226584ND
2019-09-241247181ND
2019-09-241247180ND
2019-09-241247179ND
2019-09-231247182ND
2019-09-111240010ND
2019-09-101243061ND
2019-09-091240009ND
2019-08-261229266ND
2019-08-221229269ND
2019-08-211229271ND
2019-08-211229268ND
2019-08-211229267ND
2019-08-211229265ND
2019-08-211229264ND
2019-03-061132502ND
2019-08-191226582ND
2019-08-161226581ND
2019-08-161226580ND
2019-08-151226583ND
2019-08-131226585ND
2019-08-081226579ND
2019-08-071219975ND
2019-08-061219977ND
2019-07-311219982ND
2019-07-311219979ND
2019-07-311219978ND
2019-07-311219976ND
2019-07-301219980ND
MORE
LESS

Read more about lead here.