Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Manganese

Bi County WSC 1

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20155.88 ppb553.10 ppb - 8.60 ppb
20166.55 ppb663.50 ppb - 10.00 ppb
20177.50 ppb553.80 ppb - 11.0 ppb
20188.08 ppb553.20 ppb - 20.0 ppb
20191.75 ppb6319ND - 9.00 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
2015-02-05Q15046230214.20 ppb
2015-02-05Q15046230367.50 ppb
2015-02-05Q15046230013.10 ppb
2015-02-05Q15046230028.60 ppb
2015-04-16Q15144100176.00 ppb
2016-04-19Q16152950207.20 ppb
2016-04-19Q16152950127.00 ppb
2016-04-19Q16152950133.80 ppb
2016-10-06Q16425530177.80 ppb
2016-10-06Q164255301810.00 ppb
2016-10-06Q16425530163.50 ppb
2017-01-05Q17005590287.70 ppb
2017-01-05Q17005590057.20 ppb
2017-01-05Q17005590277.80 ppb
2017-03-29Q171328201111.0 ppb
2017-03-29Q17132820123.80 ppb
2018-01-09Q18009030354.40 ppb
2018-01-09Q18009030384.70 ppb
2018-01-09Q18009030373.20 ppb
2018-01-09Q180090303420.0 ppb
2018-01-09Q18009030368.10 ppb
2019-01-15Q19020830253.40 ppb
2019-01-15Q19020830243.70 ppb
2019-01-15Q19020830239.00 ppb
2019-01-15Q19020830227.80 ppb
2019-01-15Q19020830216.90 ppb
2019-01-15Q19020830207.50 ppb
2019-06-11Q19341210075.20 ppb
2019-08-22Q19588740124.30 ppb
2019-08-22Q19588740112.60 ppb
2019-08-22Q19588740018.00 ppb
2019-08-22Q19588740026.40 ppb
2019-08-22Q19588740035.50 ppb
2019-08-22Q19588740047.10 ppb
2019-08-22Q19588740057.70 ppb
2019-08-22Q19588740065.10 ppb
2019-08-22Q19588740073.00 ppb
2019-08-22Q19588740084.40 ppb
2019-08-22Q19588740095.00 ppb
2019-08-22Q19588740107.90 ppb
2019-09-23Q1967593012ND
2019-09-23Q1967593022ND
2019-09-23Q1967593021ND
2019-09-23Q1967593020ND
2019-09-23Q1967593019ND
2019-09-23Q1967593017ND
2019-09-23Q1967593014ND
2019-09-23Q1967593013ND
2019-09-23Q1967593011ND
2019-09-23Q1967593010ND
2019-09-23Q1967593009ND
2019-09-23Q1967593008ND
2019-09-23Q1967593007ND
2019-09-23Q1967593006ND
2019-09-23Q1967593005ND
2019-09-23Q1967593004ND
2019-09-23Q1967593003ND
2019-09-23Q1967593002ND
2019-09-23Q1967593001ND
2019-09-23Q1967593018ND
2019-09-23Q1967593016ND
2019-09-23Q1967593015ND
2019-12-12Q1979994006ND
2019-12-12Q1979994005ND
2019-12-12Q1979994009ND
2019-12-12Q1979994010ND
2019-12-12Q1979994011ND
2019-12-12Q1979994008ND
2019-12-12Q1979994012ND
2019-12-12Q1979994013ND
2019-12-12Q1979994007ND
2019-12-12Q1979994014ND
2019-12-12Q1979994015ND
2019-12-12Q1979994016ND
2019-12-12Q1979994003ND
2019-12-12Q1979994017ND
2019-12-12Q1979994018ND
2019-12-12Q1979994019ND
2019-12-12Q1979994020ND
2019-12-12Q1979994021ND
2019-12-12Q1979994022ND
2019-12-12Q1979994001ND
2019-12-12Q1979994002ND
2019-12-12Q1979994004ND
2020-02-05Q20048130123.40 ppb
2020-02-05Q20048130112.70 ppb
2020-02-05Q20048130108.10 ppb
2020-02-05Q20048130095.50 ppb
2020-02-05Q20048130083.80 ppb
2020-02-05Q20048130073.00 ppb
2020-02-05Q20048130064.40 ppb
2020-02-05Q20048130058.60 ppb
2020-02-05Q20048130047.30 ppb
2020-02-05Q20048130035.70 ppb
2020-02-05Q20048130027.30 ppb
2020-02-05Q20048130019.40 ppb