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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Azusa Light and Water

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

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND20ND
2015ND10ND
2016ND70ND
2017ND20ND
2018ND10ND
20190.621 ppb197ND - 4.50 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
2014-10-073761-034-1040ND
2014-10-073761-033-1033ND
2015-05-123761-008-1101ND
2016-04-053761-003-1125ND
2016-04-053761-007-1138ND
2016-04-053761-006-1044ND
2016-09-063761-001-1035ND
2016-09-063761-010-1140ND
2016-09-063761-004-1054ND
2016-12-213761-005-1108ND
2017-10-103761-033-1015ND
2017-10-103761-034-1025ND
2018-05-013761-008-1114ND
2019-04-093761-006-1049ND
2019-04-093761-007-1107ND
2019-04-093761-003-1013ND
2019-06-139F10001-03ND
2019-06-139F10001-04ND
2019-06-139F10001-022.40 ppb
2019-06-139F10001-050.830 ppb
2019-06-139F10001-010.570 ppb
2019-09-099I03001-011.000 ppb
2019-09-253761-001-1055ND
2019-09-253761-010-1125ND
2019-09-253761-004-1105ND
2019-12-033761-005-1056ND
2019-12-033761-002-1029ND
2019-12-099K27105-011.40 ppb
2019-12-099K27105-024.50 ppb
2019-12-099K27105-03ND
2019-12-099K27105-04ND
2019-12-099K27105-051.10 ppb
2020-03-230C10112-011.20 ppb