Know Your Environment. Protect Your Health.

Manganese

Ventura County Waterworks District No. 17 - Bell Canyon

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201815.0 ppb124ND - 120.0 ppb
201911.0 ppb102ND - 60.0 ppb
20202.00 ppb101ND - 20.0 ppb
20215.56 ppb92ND - 30.0 ppb
202230.4 ppb2516ND - 170.0 ppb
202357.5 ppb3724ND - 230.0 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