Know Your Environment. Protect Your Health.

Manganese

City of Forest Grove

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
2018N/A00N/A
20190.463 ppb82ND - 3.30 ppb
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
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
2019-01-0835441376001SEA1ND
2019-01-0835441376002SEA1ND
2019-04-1635462309001SEA20.400 ppb
2019-04-1635462309002SEA2ND
2019-07-0835480346001SEA3ND
2019-07-0835480346002SEA3ND
2019-10-2935508346001SEA43.30 ppb
2019-10-2935508346002SEA4ND