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EWG's Tap Water Database — 2019 UPDATE

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Manganese

City of Auburn

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.67 ppb61ND - 10.00 ppb
2013ND60ND
20141.67 ppb61ND - 10.00 ppb
2015ND50ND
2016ND60ND
201728.0 ppb102ND - 160.0 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 Lab ID Result
2012-07-184381210.00 ppb
2012-07-1843813ND
2012-07-1843814ND
2012-07-1843815ND
2012-07-1843816ND
2012-07-1843811ND
2013-07-0248395ND
2013-07-0248394ND
2013-07-0248393ND
2013-07-0248392ND
2013-07-0248391ND
2013-10-0850045ND
2014-08-2653706ND
2014-08-265370710.00 ppb
2014-08-2653708ND
2014-08-2653709ND
2014-08-2653722ND
2014-08-2653723ND
2015-08-1958150ND
2015-08-1958148ND
2015-08-1958153ND
2015-08-1958151ND
2015-08-1958149ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-17ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-11-28160.0 ppb
2017-12-05120.0 ppb