Know Your Environment. Protect Your Health.

Manganese

Harris County MUD 490

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.

 

3

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20204.30 ppb114.30 ppb
2021N/A00N/A
20226.40 ppb226.10 ppb - 6.70 ppb
20239.13 ppb32ND - 14.6 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
2023-04-2723D5489-0112.8 ppb
2023-04-2723D5489-02ND
2023-04-2723D5489-0314.6 ppb