Know Your Environment. Protect Your Health.

Manganese

City of Leon Valley

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.407 ppb212ND - 4.76 ppb
20192.93 ppb31ND - 8.80 ppb
2020ND10ND
2021N/A00N/A
2022ND10ND
2023ND10ND

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
2018-03-26Q18120000023.79 ppb
2018-03-26Q1812000003ND
2018-03-26Q1812000004ND
2018-03-26Q1812000005ND
2018-03-26Q1812000001ND
2018-05-31Q1821573001ND
2018-05-31Q18215730024.76 ppb
2018-05-31Q1821573003ND
2018-05-31Q1821573004ND
2018-05-31Q1821573005ND
2018-09-04Q1835222004ND
2018-09-04Q1835222005ND
2018-09-04Q1835222003ND
2018-09-04Q1835222002ND
2018-09-04Q1835222001ND
2018-09-24Q1837876001ND
2018-10-31Q1843636001ND
2018-10-31Q1843636002ND
2018-10-31Q1843636003ND
2018-10-31Q1843636004ND
2018-10-31Q1843636005ND
2019-03-01AE56837ND
2019-03-25Q1911999001ND
2019-03-25Q19119990028.80 ppb
2020-01-30AE96223ND
2022-02-14AF84497ND
2023-02-17AG29588ND