Know Your Environment. Protect Your Health.

Manganese

Caddo Lake Water Supply Corporation

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)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
201971.5 ppb2223.0 ppb - 120.0 ppb
2020N/A00N/A
2021N/A00N/A
202270.0 ppb2220.0 ppb - 120.0 ppb
2023N/A00N/A

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
2019-06-10Q1933418003120.0 ppb
2019-06-10Q193341801123.0 ppb
2022-11-22Q223507900520.0 ppb
2022-11-22Q2235079006120.0 ppb