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EWG's Tap Water Database

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Manganese

La Puente Valley County Water District

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND10ND
2013ND20ND
2014N/A00N/A
2015ND10ND

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
2010-03-089588-013-0830ND
2011-12-309588-013-1400ND
2012-10-259588-013-1426ND
2013-07-259588-013-1645ND
2013-07-269588-013-1430ND
2015-07-299588-013-1237ND