Know Your Environment. Protect Your Health.

Manganese

Central Bridge Water District

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201830.3 ppb43ND - 75.9 ppb
20192.80 ppb71ND - 19.6 ppb
202028.3 ppb95ND - 208.0 ppb
20219.65 ppb63ND - 24.6 ppb
202232.2 ppb74ND - 194.0 ppb
202338.1 ppb74ND - 122.0 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
2018-01-037039666MNND
2018-04-187048925MN19.0 ppb
2018-07-117057978MN26.4 ppb
2018-11-077070449MN75.9 ppb
2019-01-097076155003MNND
2019-04-037084671MNND
2019-07-107097056MNND
2019-09-1270104642002ND
2019-10-1670108772MNND
2019-11-0670110990000219.6 ppb
2019-12-0470114190005ND
2020-01-0870117708MNND
2020-02-0570120810007ND
2020-04-087012755100110.1 ppb
2020-04-0870127551002ND
2020-05-2070131762003ND
2020-05-207013176200212.5 ppb
2020-07-0870137504005MN13.8 ppb
2020-10-0770148690003208.0 ppb
2020-10-197014869000210.00 ppb
2021-01-067015864117.5 ppb
2021-01-0670158641001ND
2021-02-1070162240END
2021-04-1470169228MN15.8 ppb
2021-07-1570180783MN24.6 ppb
2021-11-1770195103FEMNND
2022-01-1270200673003MNND
2022-01-127020067300110.00 ppb
2022-01-127020067300310.00 ppb
2022-04-0670210023001ND
2022-04-0670210023002ND
2022-07-2070222919002194.0 ppb
2022-11-16221116043-001 MN11.7 ppb
2023-02-08230208072-003ND
2023-05-10230510057-002ND
2023-05-23230510057-00159.6 ppb
2023-08-09230809087-00269.2 ppb
2023-08-0923080809087-001122.0 ppb
2023-11-07231107021-002ND
2023-11-07231107021-00116.1 ppb