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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Aqua Pa Superior Main System - 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: 29

Highest level detected in 2019: 2.8 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
2019-09-14AG328212.80 ppb
2019-08-30AG307192.20 ppb
2019-08-30AG30737ND
2019-08-28AG30732ND
2019-09-13AG32819ND
2019-09-13AG32818ND
2019-09-13AG32817ND
2019-09-13AG32816ND
2019-09-13AG32812ND
2019-09-12AG32820ND
2019-09-12AG32815ND
2019-09-10AG32813ND
2019-09-09AG32814ND
2019-08-30AG30721ND
2019-08-30AG30726ND
2019-08-30AG30736ND
2019-08-28AG30724ND
2019-08-28AG30729ND
2019-08-30AG30722ND
2019-08-30AG30730ND
2019-08-30AG30731ND
2019-08-30AG30734ND
2019-08-29AG30725ND
2019-08-29AG30720ND
2019-08-29AG30728ND
2019-08-29AG30735ND
2019-08-29AG30727ND
2019-08-29AG30723ND
2019-08-28AG30733ND
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LESS

Read more about lead here.