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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Norman

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.

 

48

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
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
20180.368 ppb216ND - 4.26 ppb
20190.421 ppb275ND - 8.49 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
2018-11-05AK06115-06AND
2018-11-05AK06115-01AND
2018-11-05AK06115-05AND
2018-11-05AK06115-08AND
2018-11-05AK06115-04AND
2018-11-06AK06115-07A0.708 ppb
2018-11-06AK06115-02AND
2018-11-06AK06115-03AND
2018-11-06AK06115-09AND
2018-11-07AK07222-03A0.517 ppb
2018-11-07AK07222-06AND
2018-11-07AK07222-05AND
2018-11-07AK07222-04AND
2018-11-07AK07222-01A1.34 ppb
2018-11-07AK07222-10AND
2018-11-08AK08068-03AND
2018-11-08AK08068-06A4.26 ppb
2018-11-08AK08068-04AND
2018-11-08AK08068-02A0.430 ppb
2018-11-08AK08068-05A0.482 ppb
2018-11-08AK08068-01AND
2019-02-06BB07049-04AND
2019-02-06BB07049-02AND
2019-02-06BB07049-03AND
2019-05-07BE07145-02AND
2019-05-07BE07145-04AND
2019-05-07BE07145-05AND
2019-05-07BE07145-13AND
2019-05-07BE07145-06AND
2019-05-07BE07145-03AND
2019-05-07BE07145-07A0.673 ppb
2019-05-07BE07145-12AND
2019-05-07BE07145-11A0.420 ppb
2019-05-07BE07145-10AND
2019-05-07BE07145-09A0.401 ppb
2019-05-07BE07145-01AND
2019-05-07BE07145-08AND
2019-05-07BE07145-14AND
2019-05-08BE08058-05AND
2019-05-08BE08058-02AND
2019-05-08BE08058-06AND
2019-05-08BE08058-08AND
2019-05-08BE08058-07A8.49 ppb
2019-05-09BE09057-01A1.38 ppb
2019-05-09BE09057-02AND
2019-08-07BH08061-02AND
2019-08-07BH08061-04AND
2019-08-07BH08061-03AND