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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Acton MUD

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

 

136

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.40 ppb112.40 ppb
20151.07 ppb440.470 ppb - 1.80 ppb
201611.6 ppb14140.460 ppb - 130.0 ppb
201718.4 ppb223.80 ppb - 33.0 ppb
20187.26 ppb6538ND - 266.0 ppb
20192.38 ppb2827ND - 7.30 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
2014-08-18Q14374170012.40 ppb
2015-02-09Q15049190450.470 ppb
2015-02-09Q15049190460.910 ppb
2015-02-09Q15049190471.80 ppb
2015-10-27Q15423560151.10 ppb
2016-01-19Q16020840471.10 ppb
2016-01-19Q16020840483.80 ppb
2016-01-19Q16020840492.80 ppb
2016-01-19Q16020840501.10 ppb
2016-01-19Q16020840386.60 ppb
2016-01-19Q16020840391.000 ppb
2016-01-19Q16020840402.40 ppb
2016-01-19Q16020840413.00 ppb
2016-01-19Q1602084042130.0 ppb
2016-01-19Q16020840430.880 ppb
2016-01-19Q16020840440.460 ppb
2016-01-19Q16020840455.90 ppb
2016-01-19Q16020840462.30 ppb
2016-05-31Q16213090091.40 ppb
2017-08-31Q174057404633.0 ppb
2017-10-05Q17491240213.80 ppb
2018-03-20Q18112630133.93 ppb
2018-03-20Q18112630071.13 ppb
2018-03-20Q1811263026ND
2018-03-20Q181126300610.1 ppb
2018-03-20Q1811263024ND
2018-03-20Q1811263021ND
2018-03-20Q1811263019266.0 ppb
2018-03-20Q18112630151.35 ppb
2018-03-20Q18112630023.03 ppb
2018-03-20Q18112630281.05 ppb
2018-03-20Q18112630181.18 ppb
2018-03-20Q18112630201.06 ppb
2018-03-20Q18112630142.43 ppb
2018-03-20Q18112630081.94 ppb
2018-03-20Q1811263025ND
2018-03-20Q18112630221.96 ppb
2018-03-20Q1811263012ND
2018-03-20Q18112630111.20 ppb
2018-03-20Q1811263009ND
2018-03-20Q18112630011.15 ppb
2018-03-20Q18112630171.12 ppb
2018-03-20Q18112630041.43 ppb
2018-03-20Q18112630031.33 ppb
2018-03-20Q18112630271.04 ppb
2018-03-20Q1811263023ND
2018-03-20Q1811263016ND
2018-03-21Q18112630103.16 ppb
2018-03-21Q18112630052.76 ppb
2018-03-21Q1811263030ND
2018-03-21Q1811263029ND
2018-03-28Q1812936029ND
2018-03-28Q1812936053ND
2018-03-28Q1812936030ND
2018-03-28Q18129360311.10 ppb
2018-03-28Q18129360326.40 ppb
2018-05-30Q18218370241.12 ppb
2018-05-30Q1821837028ND
2018-05-30Q1821837023ND
2018-05-30Q1821837017ND
2018-05-30Q1821837001ND
2018-05-30Q182183700615.5 ppb
2018-05-30Q1821837021ND
2018-05-30Q1821837022ND
2018-05-30Q18218370031.22 ppb
2018-05-30Q1821837007ND
2018-05-30Q18218370132.51 ppb
2018-05-30Q1821837016ND
2018-05-30Q18218370251.31 ppb
2018-05-30Q1821837026ND
2018-05-30Q18218370022.61 ppb
2018-05-30Q1821837008ND
2018-05-31Q18218370091.26 ppb
2018-05-31Q1821837029ND
2018-05-31Q1821837019117.0 ppb
2018-05-31Q18218370051.38 ppb
2018-05-31Q18218370151.60 ppb
2018-05-31Q18218370121.88 ppb
2018-05-31Q18218370181.13 ppb
2018-05-31Q18218370201.80 ppb
2018-05-31Q1821837027ND
2018-05-31Q1821837011ND
2018-05-31Q18218370041.52 ppb
2018-05-31Q1821837030ND
2018-05-31Q18218370102.92 ppb
2018-05-31Q18218370141.25 ppb
2019-01-10Q1901506005ND
2019-01-10Q19015060114.40 ppb
2019-03-26Q19122750525.10 ppb
2019-03-26Q19122750531.40 ppb
2019-03-26Q19122750541.40 ppb
2019-03-26Q19122750554.70 ppb
2019-03-26Q19122750561.50 ppb
2019-03-26Q19122750572.00 ppb
2019-03-26Q19122750581.80 ppb
2019-03-26Q19122750592.50 ppb
2019-03-26Q19122750603.80 ppb
2019-03-26Q19122750611.90 ppb
2019-12-18Q19807560012.00 ppb
2019-12-18Q19807560026.50 ppb
2019-12-18Q19807560031.50 ppb
2019-12-18Q19807560041.90 ppb
2019-12-18Q19807560052.00 ppb
2019-12-18Q19807560061.10 ppb
2019-12-18Q19807560072.20 ppb
2019-12-18Q19807560087.30 ppb
2019-12-18Q19807560092.70 ppb
2019-12-18Q19807560101.40 ppb
2019-12-18Q19807560110.800 ppb
2019-12-18Q19807560121.40 ppb
2019-12-19Q19807560160.800 ppb
2019-12-19Q19807560171.90 ppb
2019-12-19Q19807560180.900 ppb
2019-12-19Q19807560191.60 ppb
2020-03-17Q20115380012.30 ppb
2020-06-16Q20243940014.20 ppb
2020-06-16Q20243940021.70 ppb
2020-06-16Q20243940033.50 ppb
2020-06-16Q20243940043.20 ppb
2020-06-16Q20243940051.000 ppb
2020-06-16Q20243940061.50 ppb
2020-06-16Q20243940079.60 ppb
2020-06-16Q20243940081.60 ppb
2020-06-16Q20243940090.800 ppb
2020-06-16Q20243940101.20 ppb
2020-06-16Q20243940111.40 ppb
2020-06-16Q20243940121.90 ppb
2020-06-17Q20243940151.40 ppb
2020-06-17Q20243940161.20 ppb
2020-06-17Q20243940170.900 ppb
2020-06-17Q20243940181.20 ppb
2020-06-17Q20243940191.30 ppb
2020-06-17Q20243940202.40 ppb
2020-09-16Q20371110012.80 ppb
2020-09-16Q20371110026.00 ppb
2020-09-16Q20371110031.10 ppb