Know Your Environment. Protect Your Health.

Manganese

Harris County Municipal Utility District 344

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.

 

2

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201871.6 ppb1171.6 ppb
20197.14 ppb121103ND - 54.6 ppb
20207.41 ppb1512ND - 66.5 ppb
202129.6 ppb1129.6 ppb
20227.80 ppb27985ND - 272.0 ppb
20238.60 ppb11545ND - 65.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-02-26AE1531571.6 ppb
2021-03-04AF4529829.6 ppb