Know Your Environment. Protect Your Health.

Manganese

Franklin Water Supply

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
2018ND20ND
2019ND20ND
20203.70 ppb113.70 ppb
2021ND10ND
202220.0 ppb1120.0 ppb
202320.0 ppb1120.0 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
2018-01-2535370415004ND
2018-01-2535370415004ND
2019-01-1535442684001ND
2019-01-1535442684001ND
2020-01-07355225610013.70 ppb
2021-02-11B2100604-001ND
2022-11-21B2205538-00120.0 ppb
2023-01-30B2300411-00120.0 ppb