Know Your Environment. Protect Your Health.

Manganese

San Joaquin County-mokelumne Acres

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.

 

10

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
20196.67 ppb31ND - 20.0 ppb
2020ND20ND
2021N/A00N/A
2022ND30ND
2023ND20ND

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
2019-12-09CA3910017_008_008-20191209114520.0 ppb
2019-12-09CA3910017_009_009-201912091110ND
2019-12-09CA3910017_007_007-201912091040ND
2020-07-15CA3910017_003_003-202007151015ND
2020-07-15CA3910017_006_006-202007151055ND
2022-12-13CA3910017_009_009-202212131030ND
2022-12-13CA3910017_008_008-202212131210ND
2022-12-13CA3910017_007_007-202212131135ND
2023-07-20CA3910017_006_006-202307201215ND
2023-07-20CA3910017_003_003-202307201240ND