Know Your Environment. Protect Your Health.

Manganese

New Orleans Carrollton Waterworks

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.45 ppb42ND - 2.90 ppb
20190.567 ppb62ND - 1.70 ppb
20200.631 ppb96ND - 1.60 ppb
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-03-15353803910022.90 ppb
2018-03-1535380391001ND
2018-03-1535380391001ND
2018-03-15353803910022.90 ppb
2019-02-27354510970011.70 ppb
2019-02-2735451098001ND
2019-02-27354510970011.70 ppb
2019-02-2735451098001ND
2019-09-1935499418001ND
2019-09-1935499418001ND
2020-03-102020031102610.810 ppb
2020-03-102020031102601.60 ppb
2020-03-26B2001557-001ND
2020-03-26B2001557-002ND
2020-03-26B2001575-001ND
2020-06-172020061802441.60 ppb
2020-06-172020061802430.830 ppb
2020-09-142020091801980.400 ppb
2020-09-142020091801970.440 ppb
2021-03-29B2101452-002ND
2021-03-29B2101452-001ND
2021-03-29B2101451-001ND
2022-03-15B2201124-003ND
2022-03-15B2201124-002ND
2022-03-15B2201124-001ND
2023-03-06B2300987-001ND
2023-03-06B2300987-002ND
2023-03-06B2300987-003ND