Know Your Environment. Protect Your Health.

Manganese

Navarro Mills 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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.50 ppb113.50 ppb
20195.90 ppb115.90 ppb
20204.20 ppb114.20 ppb
20213.30 ppb113.30 ppb
20224.40 ppb114.40 ppb
20232.40 ppb112.40 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
2018-01-31Q18037180033.50 ppb
2019-02-06Q19058060015.90 ppb
2020-01-29Q20035520034.20 ppb
2021-01-12Q21006750073.30 ppb
2022-04-14Q22116160014.40 ppb
2023-02-15Q23062960072.40 ppb