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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Green Valley SUD - 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: 121

Highest level detected in 2019: 19.3 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
2019-11-1157596519.3 ppb
2019-11-115759716.80 ppb
2019-06-205584126.40 ppb
2019-10-185732236.30 ppb
2019-06-105578562.60 ppb
2019-06-195584142.50 ppb
2019-11-125759772.50 ppb
2019-11-215770682.30 ppb
2019-06-115578821.90 ppb
2019-10-185732311.70 ppb
2019-11-115759741.60 ppb
2019-06-105578721.50 ppb
2019-06-115578751.40 ppb
2019-10-235738341.40 ppb
2019-06-125578541.30 ppb
2019-06-125578741.30 ppb
2019-06-175584131.20 ppb
2019-06-115578631.10 ppb
2019-06-125578461.10 ppb
2019-06-125578901.10 ppb
2019-06-175578591.10 ppb
2019-11-115759681.10 ppb
2019-10-185732361.000 ppb
2019-11-105759751.000 ppb
2019-06-115578520.900 ppb
2019-06-125578610.900 ppb
2019-10-205732290.900 ppb
2019-06-125578640.800 ppb
2019-06-125578700.800 ppb
2019-06-125578760.800 ppb
2019-10-185732280.800 ppb
2019-10-225738310.800 ppb
2019-06-135578530.700 ppb
2019-06-145578830.700 ppb
2019-06-265586130.700 ppb
2019-10-185732340.700 ppb
2019-10-215732420.700 ppb
2019-10-255738350.700 ppb
2019-11-115759690.700 ppb
2019-06-115578510.600 ppb
2019-06-115578550.600 ppb
2019-06-115578420.600 ppb
2019-06-185584170.600 ppb
2019-10-185732220.600 ppb
2019-10-185732240.600 ppb
2019-10-185732250.600 ppb
2019-10-185732270.600 ppb
2019-10-185732410.600 ppb
2019-10-205732300.600 ppb
2019-10-305744530.600 ppb
2019-06-115578570.500 ppb
2019-06-115578580.500 ppb
2019-06-115578910.500 ppb
2019-10-195732330.500 ppb
2019-11-055759630.500 ppb
2019-06-11557849ND
2019-06-11557860ND
2019-06-11557862ND
2019-06-11557866ND
2019-06-11557867ND
2019-06-11557871ND
2019-06-11557878ND
2019-06-11557880ND
2019-06-11557884ND
2019-06-11557885ND
2019-06-11557887ND
2019-06-11557844ND
2019-06-12557877ND
2019-06-12557886ND
2019-06-12557865ND
2019-06-12557845ND
2019-06-12557889ND
2019-06-12557869ND
2019-06-12557850ND
2019-06-12557868ND
2019-06-12557847ND
2019-06-12557848ND
2019-06-13557873ND
2019-06-13557888ND
2019-06-13557879ND
2019-06-14557881ND
2019-06-14558418ND
2019-06-16558419ND
2019-06-18558420ND
2019-06-19557843ND
2019-06-20558415ND
2019-06-21558416ND
2019-10-18573226ND
2019-10-18573232ND
2019-10-18573235ND
2019-10-18573238ND
2019-10-18573239ND
2019-10-18573221ND
2019-10-18573240ND
2019-10-21573237ND
2019-10-22573833ND
2019-10-22573243ND
2019-10-24573832ND
2019-10-29574455ND
2019-10-30574550ND
2019-10-30574548ND
2019-10-30574549ND
2019-10-30574454ND
2019-10-30574456ND
2019-10-30574451ND
2019-10-30574449ND
2019-10-31574450ND
2019-10-31574452ND
2019-11-09575976ND
2019-11-10575966ND
2019-11-10575972ND
2019-11-11575970ND
2019-11-11575973ND
2019-11-11575967ND
2019-11-12575964ND
2019-11-12575962ND
2019-11-13577065ND
2019-11-18577067ND
2019-11-19577066ND
2019-12-03577943ND
2019-12-17580187ND
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Read more about lead here.