Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Manganese

Lebanon

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20130.492 ppb61ND - 2.95 ppb
2014N/A00N/A
2015N/A00N/A
201619.5 ppb137ND - 145.0 ppb
20172.03 ppb43ND - 4.25 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
2012-01-26AB63905ND
2012-04-25AB69351ND
2012-07-24AB78348ND
2012-10-18AB85074ND
2013-02-19AB921632.95 ppb
2013-02-19AB92164ND
2013-02-19AB92165ND
2013-02-19AB92166ND
2013-02-19AB92167ND
2013-02-19AB92168ND
2016-02-29AC6656732.8 ppb
2016-02-29AC66569145.0 ppb
2016-02-29AC66564ND
2016-02-29AC66565ND
2016-02-29AC66563ND
2016-02-29AC66566ND
2016-02-29AC66568ND
2016-03-25AC690337.32 ppb
2016-03-25AC690462.82 ppb
2016-04-04AC7029261.9 ppb
2016-04-04AC702932.35 ppb
2016-08-02AC80038ND
2016-10-12AC854411.13 ppb
2017-01-30AC893144.25 ppb
2017-04-17AC94652ND
2017-07-18AD017181.75 ppb
2017-10-24AD080552.13 ppb