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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Brewster Water Department

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20127.78 ppb43ND - 19.0 ppb
20137.08 ppb43ND - 12.0 ppb
20145.71 ppb107ND - 18.0 ppb
20156.27 ppb333.20 ppb - 8.60 ppb
20165.56 ppb53ND - 17.0 ppb
201727.7 ppb108ND - 67.0 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 Result
2012-03-2819.0 ppb
2012-03-284.20 ppb
2012-03-287.90 ppb
2012-03-28ND
2013-03-13ND
2013-03-1311.0 ppb
2013-03-135.30 ppb
2013-03-1312.0 ppb
2014-05-0513.0 ppb
2014-05-054.70 ppb
2014-05-053.60 ppb
2014-05-057.90 ppb
2014-05-05ND
2014-08-04ND
2014-08-04ND
2014-08-045.20 ppb
2014-08-044.70 ppb
2014-08-0418.0 ppb
2015-11-163.20 ppb
2015-11-168.60 ppb
2015-11-167.00 ppb
2016-09-0917.0 ppb
2016-09-095.10 ppb
2016-09-09ND
2016-09-095.70 ppb
2016-09-12ND
2017-04-187.50 ppb
2017-04-18ND
2017-04-1813.0 ppb
2017-04-185.20 ppb
2017-04-1812.0 ppb
2017-08-2366.0 ppb
2017-08-2342.0 ppb
2017-08-23ND
2017-08-2367.0 ppb
2017-08-2364.0 ppb