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EWG's Tap Water Database — 2021 UPDATE

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Aluminum

Arroyo Grande,Water Department

Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for aluminum was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-183761-013-0930ND
2015-05-193761-006-0827ND
2015-05-193761-013-1015ND
2015-05-193761-008-1035ND
2015-05-193761-007-0830ND
2015-05-193761-001-0912ND
2015-05-193761-004-0855ND
2015-05-193761-003-0922ND
2015-05-193761-002-0915ND
2018-05-083761-004-0818ND
2018-05-083761-003-1010ND
2018-05-083761-006-0910ND
2018-05-083761-007-0930ND
2018-05-083761-002-0850ND
2018-05-083761-008-0940ND
2018-05-083761-013-0850ND
2018-05-083761-001-0950ND