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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Lake Cities Municipal Utility Authority

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
201615.0 ppb1115.0 ppb
2017N/A00N/A
201836.1 ppb550.610 ppb - 169.0 ppb
201911.0 ppb428ND - 356.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2016-10-19Q164491500415.0 ppb
2018-07-2335406147003SEA1169.0 ppb
2018-07-2335406147002SEA15.00 ppb
2018-07-2335406147001SEA15.20 ppb
2018-10-1135423895002SEA20.830 ppb
2018-10-1135423895001SEA20.610 ppb
2019-01-29Q190405200519.0 ppb
2019-02-27AE56396ND
2019-02-27AE56386ND
2019-02-27AE5638769.3 ppb
2019-02-27AE56388ND
2019-02-27AE56389ND
2019-02-27AE56390ND
2019-02-27AE56391ND
2019-02-27AE56392ND
2019-02-27AE56393ND
2019-02-27AE56394ND
2019-02-27AE56395ND
2019-02-27AE56397ND
2019-02-27AE56398ND
2019-04-2535464275001SEA40.400 ppb
2019-04-2535464275002SEA40.540 ppb
2019-07-02AE72986ND
2019-07-02AE72981ND
2019-07-02AE72985ND
2019-07-02AE72979ND
2019-07-02AE7298015.1 ppb
2019-07-02AE72990ND
2019-07-02AE72989ND
2019-07-02AE729881.50 ppb
2019-07-02AE72987ND
2019-07-02AE72991ND
2019-07-02AE72982ND
2019-07-02AE72983ND
2019-07-02AE72984ND
2019-10-31AE88062ND
2019-10-31AE88061ND
2019-10-31AE88063ND
2019-10-31AE88064ND
2019-10-31AE88065ND
2019-10-31AE88054356.0 ppb
2019-10-31AE88060ND
2019-10-31AE88053ND
2019-10-31AE88055ND
2019-10-31AE88056ND
2019-10-31AE88057ND
2019-10-31AE880581.30 ppb
2019-10-31AE88059ND