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EWG's Tap Water Database — 2021 UPDATE

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Manganese

City of Tallahassee

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.

MORE ABOUT THIS CONTAMINANT

 

66

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
201725.7 ppb272ND - 669.0 ppb
20182.36 ppb181ND - 42.4 ppb
20196.82 ppb216ND - 42.0 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 Result
2017-01-24ND
2017-01-24ND
2017-01-2424.7 ppb
2017-01-24ND
2017-01-24ND
2017-01-24ND
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-09-14ND
2017-09-14669.0 ppb
2017-09-14ND
2017-09-14ND
2018-05-1042.4 ppb
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-18ND
2018-12-19ND
2018-12-19ND
2018-12-19ND
2018-12-19ND
2018-12-19ND
2019-03-2740.0 ppb
2019-04-1142.0 ppb
2019-04-1738.0 ppb
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-06-19ND
2019-06-19ND
2019-06-1922.0 ppb
2019-06-190.520 ppb
2019-06-190.780 ppb
2019-06-19ND
2019-07-17ND
2019-08-06ND
2019-08-06ND