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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Ontario Municipal Utilities Company

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

 

146

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND710ND
2015ND190ND
2016N/A00N/A
2017ND150ND
2018N/A00N/A
20190.617 ppb195ND - 6.20 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
2014-01-224790-020-0945ND
2014-01-224790-022-0855ND
2014-01-224790-029-1030ND
2014-01-224790-030-0730ND
2014-01-224790-031-0815ND
2014-01-274790-025-0920ND
2014-01-274790-027-0950ND
2014-01-284790-042-0915ND
2014-01-294790-041-1015ND
2014-01-294790-045-0730ND
2014-01-314790-023-0815ND
2014-01-314790-034-0845ND
2014-01-314790-049-0745ND
2014-04-094790-017-0800ND
2014-04-094790-031-0800ND
2014-04-094790-032-0910ND
2014-04-094790-040-0835ND
2014-04-094790-045-0930ND
2014-04-094790-046-0950ND
2014-04-094790-048-1025ND
2014-04-174790-017-1035ND
2014-04-174790-023-1120ND
2014-04-174790-025-0945ND
2014-04-174790-030-0920ND
2014-04-174790-041-1030ND
2014-04-224790-022-0855ND
2014-04-224790-027-0845ND
2014-04-224790-029-0750ND
2014-04-224790-042-0950ND
2014-04-224790-049-0815ND
2014-04-244790-034-0840ND
2014-05-214790-043-0900ND
2014-05-214790-044-1000ND
2014-06-054790-043-1125ND
2014-07-074790-041-0945ND
2014-07-114790-017-0925ND
2014-07-114790-020-1020ND
2014-07-114790-045-0825ND
2014-07-144790-046-0800ND
2014-07-144790-048-0910ND
2014-07-184790-027-0930ND
2014-07-184790-042-0900ND
2014-07-244790-029-0830ND
2014-07-244790-031-0915ND
2014-07-284790-026-0900ND
2014-07-294790-022-1020ND
2014-07-294790-025-0950ND
2014-07-294790-034-0945ND
2014-07-294790-040-1040ND
2014-08-124790-040-0845ND
2014-08-124790-049-0800ND
2014-08-194790-032-0815ND
2014-08-194790-034-0900ND
2014-10-154790-017-1000ND
2014-10-154790-025-1100ND
2014-10-164790-045-0815ND
2014-10-164790-046-0910ND
2014-10-164790-048-1000ND
2014-10-224790-020-0915ND
2014-10-224790-023-0955ND
2014-10-224790-031-1115ND
2014-10-224790-034-0840ND
2014-10-224790-049-1040ND
2014-10-284790-041-0850ND
2014-10-284790-043-0820ND
2014-10-284790-044-0800ND
2014-11-064790-022-1010ND
2014-11-064790-026-0915ND
2014-11-074790-030-0930ND
2014-12-044790-027-1020ND
2014-12-044790-042-0945ND
2015-01-224790-029-0830ND
2015-01-224790-043-0745ND
2015-01-224790-045-0730ND
2015-01-224790-048-0805ND
2015-01-284790-020-1035ND
2015-01-284790-023-1000ND
2015-01-284790-032-0930ND
2015-01-304790-027-0930ND
2015-01-304790-042-1000ND
2015-02-094790-017-0900ND
2015-02-094790-025-0935ND
2015-02-094790-041-0830ND
2015-02-124790-022-0915ND
2015-02-124790-026-0855ND
2015-02-124790-034-0745ND
2015-02-124790-040-0830ND
2015-02-124790-046-0800ND
2015-02-124790-049-0850ND
2015-05-074790-050-1042ND
2017-02-014790-050-0831ND
2017-04-204790-030-0910ND
2017-07-034790-042-0910ND
2017-07-034790-043-1110ND
2017-07-034790-044-1015ND
2017-07-064790-025-0955ND
2017-07-124790-031-1130ND
2017-07-124790-034-0910ND
2017-07-124790-041-0815ND
2017-07-124790-049-1055ND
2017-07-194790-020-0730ND
2017-07-194790-026-0930ND
2017-07-194790-032-0835ND
2017-07-194790-045-1050ND
2017-08-034790-048-0815ND
2019-10-304790-040-0826ND
2019-12-032019120315836.20 ppb
2019-12-03201912031581ND
2019-12-04201912040519ND
2019-12-042019120405210.590 ppb
2019-12-04201912040520ND
2019-12-04201912040518ND
2019-12-05201912050299ND
2019-12-05201912050317ND
2019-12-052019120503022.30 ppb
2019-12-092019121105910.640 ppb
2019-12-11201912110599ND
2019-12-11201912110652ND
2019-12-11201912110598ND
2019-12-11201912110590ND
2019-12-11201912110649ND
2019-12-26201912260233ND
2019-12-262019122601952.00 ppb
2019-12-26201912260247ND
2020-03-232020032604191.30 ppb
2020-03-232020032604350.680 ppb
2020-06-012020060403631.40 ppb
2020-06-04202006040334ND
2020-06-04202006040354ND
2020-06-04202006040361ND
2020-06-04202006040343ND
2020-06-04202006040340ND
2020-06-11202006110494ND
2020-06-11202006110495ND
2020-06-11202006110496ND
2020-06-11202006110485ND
2020-06-11202006110497ND
2020-06-18202006180383ND
2020-06-182020061803860.410 ppb
2020-06-18202006180399ND
2020-06-18202006180408ND
2020-06-19202006240421ND
2020-06-24202006240408ND
2020-06-30202006300661ND
2020-06-30202006300280ND
2020-09-012020090203240.850 ppb