Know Your Environment. Protect Your Health.

Manganese

Galveston County Water Control and Improvement District 8

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.20 ppb116.20 ppb
2019ND10ND
20201.80 ppb111.80 ppb
20217.90 ppb117.90 ppb
20227.90 ppb117.90 ppb
20231.20 ppb111.20 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
2018-03-19AE188316.20 ppb
2020-03-11AF021991.80 ppb
2021-06-23AF592247.90 ppb
2023-02-08AG279101.20 ppb