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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Manville WSC

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

 

111

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
20163.34 ppb73ND - 20.5 ppb
20171.10 ppb53ND - 3.50 ppb
20183.44 ppb3615ND - 26.9 ppb
20194.75 ppb4521ND - 49.4 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
2016-04-25AD33903ND
2016-04-25AD33901ND
2016-04-25AD33902ND
2016-04-25AD339001.000 ppb
2016-04-25AD3389920.5 ppb
2016-04-25AD33904ND
2016-11-09AD573151.90 ppb
2017-01-23AD65999ND
2017-01-23AD659983.50 ppb
2017-04-27AD81409ND
2017-04-27AD814151.000 ppb
2017-04-27AD814141.000 ppb
2018-08-30AE38839ND
2018-08-30AE38823ND
2018-08-30AE388372.60 ppb
2018-08-30AE388368.20 ppb
2018-08-30AE388356.20 ppb
2018-08-30AE38834ND
2018-08-30AE388323.30 ppb
2018-08-30AE38831ND
2018-08-30AE38830ND
2018-08-30AE388291.10 ppb
2018-08-30AE38828ND
2018-08-30AE3882726.9 ppb
2018-08-30AE3882613.6 ppb
2018-08-30AE38825ND
2018-08-30AE38824ND
2018-08-30AE38833ND
2018-08-30AE388382.00 ppb
2018-11-27AE46896ND
2018-11-27AE46895ND
2018-11-27AE4689425.1 ppb
2018-11-27AE468933.90 ppb
2018-11-27AE468921.000 ppb
2018-11-27AE46891ND
2018-11-27AE46890ND
2018-11-27AE46907ND
2018-11-27AE46906ND
2018-11-27AE46905ND
2018-11-27AE46904ND
2018-11-27AE469033.50 ppb
2018-11-27AE469023.20 ppb
2018-11-27AE46901ND
2018-11-27AE46900ND
2018-11-27AE468992.40 ppb
2018-11-27AE46898ND
2018-11-27AE46897ND
2018-12-20AE4898020.8 ppb
2019-02-06AE53089ND
2019-02-06AE530882.70 ppb
2019-02-06AE530861.60 ppb
2019-02-06AE530902.10 ppb
2019-02-06AE53087ND
2019-03-21AE593851.10 ppb
2019-03-21AE59375ND
2019-03-21AE5937624.7 ppb
2019-03-21AE5937749.4 ppb
2019-03-21AE59378ND
2019-03-21AE59373ND
2019-03-21AE59390ND
2019-03-21AE59389ND
2019-03-21AE59388ND
2019-03-21AE5938711.3 ppb
2019-03-21AE5938639.5 ppb
2019-03-21AE59374ND
2019-03-21AE59384ND
2019-03-21AE593834.20 ppb
2019-03-21AE593822.50 ppb
2019-03-21AE59381ND
2019-03-21AE593801.20 ppb
2019-03-21AE59379ND
2019-03-25AE59619ND
2019-05-13AE658094.20 ppb
2019-05-13AE65808ND
2019-05-13AE658261.50 ppb
2019-05-13AE65825ND
2019-05-13AE65824ND
2019-05-13AE658233.10 ppb
2019-05-13AE658222.20 ppb
2019-05-13AE65821ND
2019-05-13AE65820ND
2019-05-13AE658191.40 ppb
2019-05-13AE65818ND
2019-05-13AE6581713.0 ppb
2019-05-13AE65816ND
2019-05-13AE65815ND
2019-05-13AE65814ND
2019-05-13AE6581318.8 ppb
2019-05-13AE658123.00 ppb
2019-05-13AE65811ND
2019-05-13AE658101.000 ppb
2019-09-12AE83131ND
2019-09-30AE8500825.3 ppb
2020-02-2035532344002SEA1ND
2020-02-2035532344003SEA120.6 ppb
2020-02-2035532344004SEA10.760 ppb
2020-02-2035532344005SEA16.10 ppb
2020-02-2035532344006SEA130.9 ppb
2020-02-2035532344007SEA10.930 ppb
2020-02-2035532344001SEA10.980 ppb
2020-02-2435532344012SEA1ND
2020-05-1835550914001SEA20.830 ppb
2020-08-0535568270002SEA2ND
2020-08-0535568270003SEA20.600 ppb
2020-08-0535568270004SEA21.80 ppb
2020-08-0535568270005SEA210.1 ppb
2020-08-0535568270006SEA231.2 ppb
2020-08-0535568270007SEA21.80 ppb
2020-08-0535568270001SEA31.20 ppb
2020-08-0535568270008SEA2ND
2020-11-0535590100001SEA40.430 ppb