Know Your Environment. Protect Your Health.

Manganese

China Lake Naval Air Weapons Station

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.

 

12

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
2019N/A00N/A
2020ND40ND
202125.0 ppb1125.0 ppb
2022ND10ND
2023ND60ND

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
2020-11-30CA1510703_004_004-202011301420ND
2020-11-30CA1510703_017_017-202011301450ND
2020-11-30CA1510703_002_002-202011301301ND
2020-11-30CA1510703_013_013-202011301346ND
2021-06-15CA1510703_015_015-20210615094525.0 ppb
2022-06-28CA1510703_043_043-202206280900ND
2023-11-07CA1510703_013_013-202311070824ND
2023-11-07CA1510703_015_015-202311070807ND
2023-11-07CA1510703_043_043-202311070917ND
2023-11-07CA1510703_004_004-202311070717ND
2023-11-07CA1510703_002_002-202311070901ND
2023-11-07CA1510703_017_017-202311070732ND