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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Highland Water Authority

NOTE: Highland Water Authority purchases water from Gadsden Water Works and Sewer Board which is required to test for manganese. Sample information shown below was taken by Gadsden Water Works and Sewer Board.

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
2015ND10ND
201650.0 ppb21ND - 100.0 ppb
2017ND10ND

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

NOTE: Highland Water Authority purchases water from Gadsden Water Works and Sewer Board which is required to test for manganese. Sample information shown below was taken by Gadsden Water Works and Sewer Board.

Date Lab ID Result
2012-06-08120608041-1ND
2013-05-31130531029-1ND
2014-06-09140609031-1ND
2015-06-19150619024-1ND
2016-05-27160527037-1100.0 ppb
2016-06-24160624036-1ND
2017-06-01170601042-1ND