Know Your Environment. Protect Your Health.

Manganese

Tom Green County Fresh Water Supply District 3

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
2018ND90ND
20191.20 ppb111.20 ppb
2020N/A00N/A
2021ND10ND
20222.20 ppb112.20 ppb
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
2018-03-27580817-001ND
2018-03-27580817-002ND
2018-03-27580817-003ND
2018-03-27580817-004ND
2018-05-10AE28119ND
2018-05-16586398-001ND
2018-05-16586398-002ND
2018-05-16586398-003ND
2018-05-16586398-004ND
2019-02-28Q19085930061.20 ppb
2021-05-19Q2113110005ND
2022-05-19Q22148290062.20 ppb