Know Your Environment. Protect Your Health.

Manganese

City of Santa Rosa

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
201810.2 ppb1110.2 ppb
20193.90 ppb113.90 ppb
20207.10 ppb117.10 ppb
202111.3 ppb1111.3 ppb
20224.20 ppb114.20 ppb
202313.2 ppb1113.2 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
2018-03-19AE1882510.2 ppb
2019-03-25AE596873.90 ppb
2020-03-19AF037477.10 ppb
2021-05-10AF5288811.3 ppb
2022-01-31AF824574.20 ppb
2023-07-19AG4925713.2 ppb