Know Your Environment. Protect Your Health.

Manganese

Southeast Grant Water System

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018264.7 ppb449.40 ppb - 520.0 ppb
2019N/A00N/A
2020N/A00N/A
2021110.0 ppb21ND - 220.0 ppb
2022150.0 ppb11150.0 ppb
2023100.0 ppb11100.0 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
2018-05-03353901940019.40 ppb
2018-05-0335390194002520.0 ppb
2018-05-03353901940019.40 ppb
2018-05-0335390194002520.0 ppb
2021-05-18B2102307-001ND
2021-05-18B2102307-002220.0 ppb
2022-02-22B2200869-001150.0 ppb
2023-08-28B2303626-001100.0 ppb