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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Ozark Utilities Board

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

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20160.631 ppb82ND - 4.07 ppb
2017N/A00N/A
2018N/A00N/A
20190.765 ppb83ND - 4.41 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
2016-03-29AB106870.971 ppb
2016-03-29AB10689ND
2016-03-29AB10691ND
2016-03-29AB10692ND
2016-03-29AB10688ND
2016-03-29AB10693ND
2016-03-29AB10690ND
2016-03-29AB106944.07 ppb
2019-06-19AB361064.41 ppb
2019-06-19AB36104ND
2019-06-19AB36103ND
2019-06-19AB36105ND
2019-08-27AB37947ND
2019-08-27AB37946ND
2019-08-27AB379490.892 ppb
2019-08-27AB379480.817 ppb
2020-07-2835566890003SEA10.600 ppb
2020-07-2835566890007SEA158.2 ppb
2020-07-2835566890006SEA1ND
2020-07-2835566890005SEA1ND
2020-07-2835566890004SEA1ND
2020-07-2835566890002SEA1ND
2020-07-2835566890008SEA1ND
2020-07-2935566890001SEA1ND
2021-01-2035606530002SEA2ND
2021-01-2035606530003SEA2ND
2021-01-2035606530001SEA2ND
2021-01-2035606530004SEA21.10 ppb
2021-01-2035606530007SEA2ND
2021-01-2035606530005SEA2ND
2021-01-2035606530006SEA213.1 ppb