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EWG's Tap Water Database — 2021 UPDATE

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Manganese

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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

 

349

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201417.7 ppb7215ND - 130.0 ppb
201519.8 ppb7315ND - 150.0 ppb
201626.0 ppb6419ND - 140.0 ppb
201716.3 ppb6913ND - 130.0 ppb
201818.7 ppb4810ND - 100.0 ppb
201917.3 ppb236ND - 100.0 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
2014-01-069590-009-1100ND
2014-01-139590-009-1020ND
2014-01-169590-001-0910ND
2014-01-169590-002-090087.0 ppb
2014-01-169590-008-0850ND
2014-01-219590-009-1026ND
2014-01-279590-009-1148ND
2014-02-039590-009-0948ND
2014-02-109590-009-0927ND
2014-02-139590-002-091881.0 ppb
2014-02-189590-009-1033ND
2014-02-249590-009-1050ND
2014-03-039590-009-1056ND
2014-03-109590-009-1000ND
2014-03-139590-002-100088.0 ppb
2014-03-179590-009-0840ND
2014-03-249590-009-0845ND
2014-03-319590-009-0920ND
2014-04-079590-009-1000ND
2014-04-109590-001-1435ND
2014-04-109590-002-140596.0 ppb
2014-04-109590-008-1350ND
2014-04-149590-009-0930ND
2014-04-219590-009-1140ND
2014-04-289590-009-0830ND
2014-05-059590-009-1000ND
2014-05-129590-002-1100110.0 ppb
2014-05-129590-009-0910ND
2014-05-199590-009-1100ND
2014-05-279590-009-0840ND
2014-06-029590-009-103022.0 ppb
2014-06-099590-002-0920100.0 ppb
2014-06-099590-009-1000ND
2014-06-169590-009-1120ND
2014-06-239590-009-101521.0 ppb
2014-06-309590-009-0645ND
2014-07-079590-001-1000ND
2014-07-079590-008-1020ND
2014-07-079590-009-094022.0 ppb
2014-07-149590-002-1025100.0 ppb
2014-07-149590-009-1045ND
2014-07-219590-009-1010ND
2014-07-289590-009-1000ND
2014-08-049590-009-0850ND
2014-08-119590-009-1030ND
2014-08-189590-009-0910ND
2014-08-259590-009-1430ND
2014-08-269590-002-1430100.0 ppb
2014-09-029590-009-0857ND
2014-09-089590-002-1106100.0 ppb
2014-09-089590-009-1025ND
2014-09-159590-009-0906ND
2014-09-229590-009-0910ND
2014-09-299590-009-1058ND
2014-10-069590-009-1030ND
2014-10-139590-001-1020ND
2014-10-139590-002-110697.0 ppb
2014-10-139590-008-1114ND
2014-10-139590-009-1049ND
2014-10-209590-009-0908ND
2014-10-279590-009-0925ND
2014-11-039590-009-1315ND
2014-11-109590-009-0845ND
2014-11-179590-002-0935120.0 ppb
2014-11-179590-009-0855ND
2014-11-249590-009-0900ND
2014-12-019590-009-0905ND
2014-12-089590-009-0900ND
2014-12-159590-009-0900ND
2014-12-189590-002-0925130.0 ppb
2014-12-229590-009-0830ND
2014-12-299590-009-0839ND
2015-01-059590-009-100024.0 ppb
2015-01-129590-009-1015ND
2015-01-159590-001-1140ND
2015-01-159590-002-1220130.0 ppb
2015-01-159590-008-1155ND
2015-01-209590-009-0935ND
2015-01-269590-009-0945ND
2015-02-029590-009-1130ND
2015-02-099590-002-1135130.0 ppb
2015-02-099590-009-1040ND
2015-02-179590-009-1010ND
2015-02-239590-009-1000ND
2015-03-029590-009-0840ND
2015-03-099590-002-1034150.0 ppb
2015-03-099590-009-0937ND
2015-03-169590-009-1230ND
2015-03-269590-009-0915ND
2015-04-029590-009-0925ND
2015-04-099590-009-1015ND
2015-04-169590-009-0916ND
2015-04-239590-001-1020ND
2015-04-239590-002-1030110.0 ppb
2015-04-239590-008-1035ND
2015-04-239590-009-1014ND
2015-04-299590-001-1100ND
2015-04-299590-002-104092.0 ppb
2015-04-299590-008-1030ND
2015-04-299590-009-1120ND
2015-05-079590-009-1420ND
2015-05-149590-002-110594.0 ppb
2015-05-149590-009-1055ND
2015-05-219590-009-1110ND
2015-05-289590-009-1040ND
2015-06-049590-009-0845ND
2015-06-119590-009-1105ND
2015-06-189590-002-124599.0 ppb
2015-06-189590-009-1200ND
2015-06-259590-009-1540ND
2015-07-099590-002-0935100.0 ppb
2015-07-099590-008-0940ND
2015-07-099590-009-0955ND
2015-07-169590-009-0845ND
2015-07-239590-009-0842ND
2015-07-309590-009-0925ND
2015-08-069590-002-1005100.0 ppb
2015-08-069590-009-0836ND
2015-08-139590-009-0850ND
2015-08-209590-009-0925ND
2015-08-279590-009-0947ND
2015-09-039590-009-1000ND
2015-09-109590-002-091996.0 ppb
2015-09-109590-009-0907ND
2015-09-179590-009-0945ND
2015-09-249590-009-1115ND
2015-10-019590-009-0828ND
2015-10-089590-002-082091.0 ppb
2015-10-089590-009-084026.0 ppb
2015-10-159590-001-1000ND
2015-10-159590-008-0920ND
2015-10-159590-009-1605ND
2015-10-229590-009-0820ND
2015-10-299590-009-0830ND
2015-11-059590-002-1100100.0 ppb
2015-11-059590-009-1050ND
2015-11-129590-009-1138ND
2015-11-199590-009-0840ND
2015-11-239590-009-0845ND
2015-12-039590-009-1015ND
2015-12-109590-002-1000100.0 ppb
2015-12-109590-009-0925ND
2015-12-179590-009-1030ND
2015-12-239590-009-0955ND
2015-12-299590-009-1100ND
2016-01-079590-001-0925ND
2016-01-079590-002-094597.0 ppb
2016-01-079590-008-0951ND
2016-01-079590-009-0935ND
2016-01-149590-009-0920ND
2016-01-219590-009-1010ND
2016-01-289590-009-1055ND
2016-02-049590-009-0700ND
2016-02-119590-009-0920ND
2016-02-189590-002-1030110.0 ppb
2016-02-189590-009-1015ND
2016-02-259590-009-1020ND
2016-03-109590-009-0950ND
2016-03-179590-002-1045110.0 ppb
2016-03-179590-009-1130ND
2016-03-249590-009-0915ND
2016-03-319590-009-0840ND
2016-04-079590-001-103039.0 ppb
2016-04-079590-002-1040120.0 ppb
2016-04-079590-008-1050ND
2016-04-079590-009-1015ND
2016-04-149590-001-093028.0 ppb
2016-04-149590-002-0850100.0 ppb
2016-04-149590-008-0900ND
2016-04-149590-009-0948ND
2016-04-219590-009-0921ND
2016-04-289590-009-1035ND
2016-05-059590-002-1037120.0 ppb
2016-05-059590-009-0950ND
2016-05-129590-009-0908ND
2016-05-199590-009-1000ND
2016-05-269590-009-1120ND
2016-06-029590-009-0940ND
2016-06-099590-002-0935110.0 ppb
2016-06-099590-009-0926ND
2016-07-079590-009-111021.0 ppb
2016-07-149590-009-103022.0 ppb
2016-07-219590-002-1325120.0 ppb
2016-07-219590-008-1315ND
2016-07-219590-009-1340ND
2016-07-289590-009-095020.0 ppb
2016-08-049590-009-0900ND
2016-08-119590-002-1050120.0 ppb
2016-08-119590-009-1105ND
2016-08-189590-009-0920ND
2016-08-259590-002-0918120.0 ppb
2016-08-259590-009-0900ND
2016-09-019590-009-1000ND
2016-09-159590-009-1100ND
2016-10-069590-002-0955110.0 ppb
2016-10-069590-008-1005ND
2016-10-069590-009-1020ND
2016-10-139590-009-0915ND
2016-10-209590-009-1040ND
2016-10-279590-009-0855ND
2016-11-039590-009-1355ND
2016-11-109590-002-1012130.0 ppb
2016-11-109590-009-0850ND
2016-11-179590-009-121524.0 ppb
2016-11-229590-009-1030ND
2016-12-019590-009-0925ND
2016-12-089590-002-1005140.0 ppb
2016-12-159590-009-0910ND
2016-12-209590-009-0950ND
2017-01-059590-009-0914ND
2017-01-129590-002-0848130.0 ppb
2017-01-129590-008-0855ND
2017-01-129590-009-0836ND
2017-01-199590-009-1140ND
2017-01-269590-009-0912ND
2017-02-029590-009-0850ND
2017-02-099590-009-1135ND
2017-02-169590-002-0925120.0 ppb
2017-02-169590-009-0830ND
2017-02-239590-009-1415ND
2017-03-029590-009-1304ND
2017-03-099590-002-0900120.0 ppb
2017-03-099590-009-0940ND
2017-03-169590-009-1000ND
2017-03-239590-009-0915ND
2017-03-309590-009-1200ND
2017-04-069590-009-1048ND
2017-04-139590-002-1525100.0 ppb
2017-04-139590-002-1535100.0 ppb
2017-04-139590-008-152320.0 ppb
2017-04-139590-008-1535ND
2017-04-139590-009-1550ND
2017-04-209590-009-0805ND
2017-04-279590-009-0920ND
2017-05-049590-009-1100ND
2017-05-119590-009-1115ND
2017-05-189590-002-092588.0 ppb
2017-05-189590-009-0915ND
2017-05-259590-009-1120ND
2017-06-019590-009-1045ND
2017-06-089590-009-0900ND
2017-06-159590-009-1150ND
2017-06-299590-009-1030ND
2017-07-069590-009-1050ND
2017-07-139590-002-104078.0 ppb
2017-07-139590-008-1045ND
2017-07-139590-009-1055ND
2017-07-209590-009-0935ND
2017-07-279590-009-0940ND
2017-08-039590-009-0955ND
2017-08-109590-002-102565.0 ppb
2017-08-109590-009-0905ND
2017-08-179590-009-1135ND
2017-08-249590-009-0950ND
2017-08-319590-009-0836ND
2017-09-079590-009-0935ND
2017-09-149590-002-104072.0 ppb
2017-09-149590-009-1100ND
2017-09-219590-009-1400ND
2017-09-289590-009-0940ND
2017-10-059590-009-1054ND
2017-10-129590-002-093870.0 ppb
2017-10-129590-008-0930ND
2017-10-129590-009-0840ND
2017-10-199590-009-1225ND
2017-10-269590-009-0828ND
2017-11-029590-001-1040ND
2017-11-029590-009-1005ND
2017-11-099590-002-093078.0 ppb
2017-11-099590-009-0915ND
2017-11-169590-009-1000ND
2017-11-219590-009-0920ND
2017-11-309590-009-1420ND
2017-12-079590-002-091083.0 ppb
2017-12-079590-009-0918ND
2017-12-149590-009-1215ND
2017-12-219590-009-0848ND
2017-12-289590-009-1344ND
2018-01-049590-009-1150ND
2018-01-119590-001-1200ND
2018-01-119590-002-112587.0 ppb
2018-01-119590-008-1115ND
2018-01-119590-009-1150ND
2018-01-189590-009-1340ND
2018-01-259590-009-0950ND
2018-02-019590-009-1125ND
2018-02-089590-002-101584.0 ppb
2018-02-089590-009-1000ND
2018-02-159590-009-1405ND
2018-02-229590-009-1035ND
2018-03-019590-009-0951ND
2018-03-089590-002-142087.0 ppb
2018-03-089590-009-1425ND
2018-03-159590-009-1315ND
2018-03-229590-009-1045ND
2018-03-299590-009-0850ND
2018-04-059590-002-093886.0 ppb
2018-04-059590-009-0920ND
2018-04-129590-001-1145ND
2018-04-129590-002-105682.0 ppb
2018-04-129590-008-1120ND
2018-04-129590-009-1152ND
2018-04-199590-009-1220ND
2018-04-269590-009-1105ND
2018-05-039590-002-091585.0 ppb
2018-05-039590-009-0925ND
2018-05-109590-009-0900ND
2018-05-179590-009-1125ND
2018-05-249590-009-1225ND
2018-05-319590-009-0955ND
2018-06-079590-002-123592.0 ppb
2018-06-079590-009-1200ND
2018-06-149590-009-1010ND
2018-06-219590-009-1230ND
2018-06-289590-009-0915ND
2018-07-059590-002-093293.0 ppb
2018-07-059590-009-0940ND
2018-07-129590-009-0950ND
2018-08-159590-001-1340ND
2018-08-159590-002-1330100.0 ppb
2018-08-159590-009-1335ND
2018-09-199590-002-0835ND
2018-10-189590-009-1005ND
2018-11-159590-001-1000ND
2018-11-159590-002-1015100.0 ppb
2018-12-139590-009-1040ND
2019-01-092104-009-084728.0 ppb
2019-03-212104-009-090526.0 ppb
2019-04-189590-001-0850ND
2019-04-189590-002-0920100.0 ppb
2019-04-189590-008-0910ND
2019-04-182104-009-0905ND
2019-05-162104-009-0912ND
2019-06-202104-001-0925ND
2019-06-202104-002-090570.0 ppb
2019-06-202104-008-0910ND
2019-06-202104-009-0930ND
2019-07-182104-009-1025ND
2019-08-082104-001-1035ND
2019-08-082104-002-101583.0 ppb
2019-08-082104-008-1025ND
2019-08-082104-009-1035ND
2019-09-192104-009-1010ND
2019-10-172104-009-0918ND
2019-11-212104-001-0940ND
2019-11-212104-002-100890.0 ppb
2019-11-212104-008-1000ND
2019-11-212104-009-0950ND
2019-12-192104-009-0945ND