Know Your Environment. Protect Your Health.

Manganese

Ridge Harbor

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.50 ppb111.50 ppb
20192.70 ppb112.70 ppb
20200.154 ppb131ND - 2.00 ppb
20212.00 ppb112.00 ppb
20221.40 ppb111.40 ppb
20232.40 ppb112.40 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
2018-03-13AE180991.50 ppb
2019-01-09AE491582.70 ppb
2020-02-06AE972532.00 ppb
2020-03-04Q2008169001ND
2020-03-04Q2008169002ND
2020-03-04Q2008169003ND
2020-04-07Q2013804001ND
2020-04-07Q2013804002ND
2020-04-07Q2013804003ND
2020-07-07Q2026419001ND
2020-07-07Q2026419003ND
2020-07-07Q2026419002ND
2020-11-04Q2042689001ND
2020-11-04Q2042689002ND
2020-11-04Q2042689003ND
2021-01-21AF402692.00 ppb
2022-03-01AF868171.40 ppb
2023-01-23AG254782.40 ppb