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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Sierra Madre 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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND50ND

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
2014-05-129588-003-1030ND
2014-05-129588-004-1045ND
2014-05-129588-005-1105ND
2014-05-129588-006-1055ND
2014-05-129588-007-1125ND
2017-05-039588-003-1030ND
2017-05-039588-004-1045ND
2017-05-039588-005-0930ND
2017-05-039588-006-0940ND
2017-05-039588-007-1010ND