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EWG's Tap Water Database

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Manganese

Carthage

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20102.84 ppb21ND - 5.67 ppb
2011N/A00N/A
2012N/A00N/A
20132.18 ppb21ND - 4.36 ppb
2014N/A00N/A
2015N/A00N/A

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 100 ppb

The health guideline of 100 ppb for manganese was defined by the State of Minnesota as a risk assessment advisory level, a non-enforceable guideline. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-01-18AB115525.67 ppb
2010-01-18AB11553ND
2013-01-15AB89911ND
2013-01-15AB899124.36 ppb