Know Your Environment. Protect Your Health.

Manganese

City of Rio Hondo

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.80 ppb114.80 ppb
20191.80 ppb111.80 ppb
20201.70 ppb111.70 ppb
20213.40 ppb113.40 ppb
202211.1 ppb1111.1 ppb
20233.70 ppb113.70 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
2018-04-25AE238724.80 ppb
2019-04-04AE611521.80 ppb
2020-03-06AF016551.70 ppb
2021-04-29AF518453.40 ppb
2022-02-03AF8313011.1 ppb
2023-02-01AG270653.70 ppb