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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Newhall CWD-Newhall

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
201432.5 ppb41ND - 130.0 ppb
2015ND40ND
2016ND20ND
2017ND20ND

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
2012-04-129590-006-0830ND
2012-04-129590-007-1150ND
2013-04-119590-006-0835ND
2013-04-119590-007-0855ND
2014-04-109590-007-0936ND
2014-05-299590-006-0955130.0 ppb
2014-06-179590-006-0935ND
2014-09-189590-006-0920ND
2015-03-269590-006-0812ND
2015-04-299590-006-1110ND
2015-04-299590-006-1120ND
2015-04-299590-007-1145ND
2016-04-149590-006-1105ND
2016-04-149590-007-1045ND
2017-04-139590-006-0940ND
2017-04-139590-007-0911ND