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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Texas State University - San Marcos

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

 

93

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
2016ND10ND
2017ND10ND
20180.239 ppb445ND - 5.08 ppb
2019ND470ND

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
2016-02-25AD25639ND
2017-04-20AD80305ND
2018-03-21Q1811216008ND
2018-03-21Q1811216002ND
2018-03-21Q1811216001ND
2018-03-21Q1811216006ND
2018-03-21Q1811216007ND
2018-03-21Q1811216009ND
2018-03-21Q18112160051.38 ppb
2018-03-21Q1811216003ND
2018-03-21Q1811216011ND
2018-03-21Q1811216004ND
2018-03-21Q1811216010ND
2018-06-14Q1823742002ND
2018-06-14Q18237420091.42 ppb
2018-06-14Q18237420051.47 ppb
2018-06-14Q18237420061.18 ppb
2018-06-14Q1823742004ND
2018-06-14Q18237420035.08 ppb
2018-06-14Q1823742008ND
2018-06-14Q1823742007ND
2018-06-14Q1823742001ND
2018-06-14Q1823742010ND
2018-06-14Q1823742011ND
2018-09-06Q1835437002ND
2018-09-06Q1835437009ND
2018-09-06Q1835437001ND
2018-09-06Q1835437005ND
2018-09-06Q1835437007ND
2018-09-06Q1835437006ND
2018-09-06Q1835437008ND
2018-09-06Q1835437004ND
2018-09-06Q1835437003ND
2018-09-06Q1835437010ND
2018-09-06Q1835437011ND
2018-12-06Q1849846004ND
2018-12-06Q1849846009ND
2018-12-06Q1849846011ND
2018-12-06Q1849846003ND
2018-12-06Q1849846005ND
2018-12-06Q1849846008ND
2018-12-06Q1849846001ND
2018-12-06Q1849846006ND
2018-12-06Q1849846010ND
2018-12-06Q1849846002ND
2018-12-06Q1849846007ND
2019-01-15AE49750ND
2019-03-19Q1911222005ND
2019-03-19Q1911222002ND
2019-03-19Q1911222008ND
2019-03-19Q1911222009ND
2019-03-19Q1911222011ND
2019-03-19Q1911222003ND
2019-03-19Q1911222001ND
2019-03-19Q1911222006ND
2019-03-19Q1911222004ND
2019-03-19Q1911222010ND
2019-03-19Q1911222007ND
2019-05-28Q1928675001ND
2019-06-20Q1938184003ND
2019-06-20Q1938184006ND
2019-06-20Q1938184007ND
2019-06-20Q1938184010ND
2019-06-20Q1938184004ND
2019-06-20Q1938184001ND
2019-06-20Q1938184009ND
2019-06-20Q1938184002ND
2019-06-20Q1938184011ND
2019-06-20Q1938184008ND
2019-06-20Q1938184005ND
2019-09-24Q1967629011ND
2019-09-24Q1967629009ND
2019-09-24Q1967629003ND
2019-09-24Q1967629007ND
2019-09-24Q1967629008ND
2019-09-24Q1967629005ND
2019-09-24Q1967629006ND
2019-09-24Q1967629001ND
2019-09-24Q1967629010ND
2019-09-24Q1967629004ND
2019-09-24Q1967629002ND
2019-11-14Q1976809001ND
2019-12-11Q1979594001ND
2019-12-11Q1979594011ND
2019-12-11Q1979594004ND
2019-12-11Q1979594006ND
2019-12-11Q1979594003ND
2019-12-11Q1979594008ND
2019-12-11Q1979594005ND
2019-12-11Q1979594002ND
2019-12-11Q1979594010ND
2019-12-11Q1979594007ND
2019-12-11Q1979594009ND