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EWG's Tap Water Database — 2019 UPDATE

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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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND20ND
2014N/A00N/A
2015ND10ND
2016ND20ND
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

Date Lab ID Result
2012-10-259588-013-1426ND
2013-07-259588-013-1645ND
2013-07-269588-013-1430ND
2015-07-299588-013-1237ND
2016-05-109588-013-1447ND
2016-12-239588-013-0915ND
2017-12-279588-013-1445ND