Know Your Environment. Protect Your Health.

Manganese

Del Dios Mutual Water Company

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.

 

7

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
201912.7 ppb31ND - 38.0 ppb
20204.53 ppb441.90 ppb - 7.10 ppb
2021ND10ND
2022ND30ND
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
2019-02-26CA3700866_002_002-20190226083038.0 ppb
2019-02-26CA3700866_001_001-201902260900ND
2019-02-26CA3700866_003_003-201902260930ND
2021-11-22CA3700866_006_006-202111221200ND
2022-03-28CA3700866_002_002-202203281430ND
2022-03-28CA3700866_001_001-202203281400ND
2022-03-28CA3700866_003_003-202203281500ND