Know Your Environment. Protect Your Health.

Manganese

Tennessee 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.520 ppb61ND - 3.12 ppb
20191.20 ppb111.20 ppb
2020N/A00N/A
2021N/A00N/A
20221.50 ppb111.50 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
2018-03-13N8C0715-01ND
2018-03-13N8C0715-023.12 ppb
2018-07-03N8G0430-01ND
2018-07-03N8G0430-02ND
2018-11-13N8K0718-01ND
2018-11-13N8K0718-02ND
2019-12-05Q19791540041.20 ppb
2022-02-01Q22036420021.50 ppb