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EWG's Tap Water Database — 2021 UPDATE

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Manganese

City of Alhambra

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND20ND
2017ND20ND
2018N/A00N/A
20190.636 ppb113ND - 4.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-089588-007-1010ND
2014-07-089588-011-1045ND
2016-05-189588-014-0710ND
2016-12-299588-013-0850ND
2017-07-059588-011-1140ND
2017-07-059588-007-1230ND
2019-05-079588-007-0900ND
2019-05-079588-011-0920ND
2019-05-079588-013-1115ND
2019-05-079588-014-1045ND
2019-09-199I04001-011.80 ppb
2019-09-199I04001-04ND
2019-09-199I04001-06ND
2019-09-199I04001-030.600 ppb
2019-09-199I04001-02ND
2019-09-199I04001-07ND
2019-12-199K28002-014.60 ppb
2020-03-180C11002-06ND
2020-03-180C11002-07ND
2020-03-180C11002-050.620 ppb
2020-03-180C11002-040.660 ppb
2020-03-180C11002-03ND
2020-03-180C11002-02ND
2020-03-180C11002-01ND
2020-06-190F09001-010.800 ppb
2020-09-170H26098-01ND