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EWG's Tap Water Database — 2019 UPDATE

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Aluminum

San Francisco Regional Water System

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201230.1 ppb31ND - 90.3 ppb
201317.5 ppb31ND - 52.5 ppb
2014ND30ND
2015ND30ND
201618.4 ppb31ND - 55.3 ppb
201732.8 ppb31ND - 98.5 ppb

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
2012-06-139553-001-1045ND
2012-06-139553-015-122090.3 ppb
2012-07-249553-016-0915ND
2013-06-189553-016-0936ND
2013-06-189553-001-1110ND
2013-10-079553-015-102452.5 ppb
2014-06-179553-001-1130ND
2014-06-179553-016-0904ND
2014-09-169553-015-1035ND
2015-05-279553-001-1235ND
2015-05-279553-016-0830ND
2015-06-189553-015-0915ND
2016-06-149553-015-1231ND
2016-06-149553-001-110555.3 ppb
2016-06-219553-016-1055ND
2017-06-199553-015-1100ND
2017-06-199553-001-102598.5 ppb
2017-06-199553-016-0953ND