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EWG's Tap Water Database — 2021 UPDATE

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Manganese

San Gabriel Valley Water Company - Fontana

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

 

167

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND310ND
2015ND300ND
2016ND250ND
20171.56 ppb251ND - 39.0 ppb
2018ND190ND
20190.353 ppb122ND - 3.40 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
2014-01-089588-003-1130ND
2014-01-109588-001-1045ND
2014-01-229588-022-1145ND
2014-01-229588-023-1030ND
2014-01-229588-028-1110ND
2014-03-059588-020-1120ND
2014-03-199588-006-0910ND
2014-03-199588-007-1000ND
2014-03-269588-011-0900ND
2014-04-169588-043-0850ND
2014-04-169588-044-1100ND
2014-04-169588-045-1010ND
2014-04-169588-064-0920ND
2014-04-179588-014-0835ND
2014-04-179588-031-0745ND
2014-05-219588-063-0725ND
2014-05-279588-016-0925ND
2014-05-279588-040-1245ND
2014-06-109588-037-1000ND
2014-06-109588-038-0850ND
2014-06-249588-033-0800ND
2014-06-249588-042-0830ND
2014-07-099588-065-0850ND
2014-07-099588-067-1100ND
2014-07-099588-068-1000ND
2014-07-239588-026-0740ND
2014-07-239588-034-0945ND
2014-07-239588-072-0910ND
2014-07-249588-041-0800ND
2014-07-319588-024-0740ND
2014-08-069588-027-1020ND
2015-01-309588-001-0815ND
2015-01-309588-003-0915ND
2015-01-309588-011-1050ND
2015-01-309588-022-0750ND
2015-01-309588-023-0845ND
2015-01-309588-027-1030ND
2015-02-269588-007-0855ND
2015-02-269588-020-0820ND
2015-02-269588-028-0745ND
2015-03-129588-031-0800ND
2015-03-129588-044-0900ND
2015-03-129588-045-0740ND
2015-03-239588-043-0810ND
2015-03-239588-064-0750ND
2015-04-279588-026-0840ND
2015-05-119588-038-1015ND
2015-05-119588-040-1045ND
2015-05-139588-016-1130ND
2015-05-139588-033-0945ND
2015-05-139588-037-1205ND
2015-05-139588-042-0900ND
2015-05-189588-024-0800ND
2015-05-189588-065-0900ND
2015-05-189588-068-0945ND
2015-06-109588-067-0730ND
2015-06-159588-034-0800ND
2015-06-159588-041-0715ND
2015-06-159588-072-0740ND
2015-08-199588-014-1030ND
2015-10-269588-063-1000ND
2016-01-259588-001-1030ND
2016-01-259588-003-0910ND
2016-02-179588-007-0925ND
2016-02-179588-022-0900ND
2016-02-179588-023-0850ND
2016-02-179588-028-0830ND
2016-02-179588-043-1030ND
2016-02-179588-063-1005ND
2016-02-179588-064-1020ND
2016-03-149588-026-1100ND
2016-03-149588-038-0920ND
2016-03-149588-040-0900ND
2016-03-149588-068-0950ND
2016-05-049588-065-0745ND
2016-05-169588-067-1020ND
2016-05-239588-027-0910ND
2016-06-239588-033-0950ND
2016-06-239588-042-1010ND
2016-06-309588-024-0740ND
2016-06-309588-034-0820ND
2016-06-309588-041-0720ND
2016-06-309588-072-0810ND
2016-07-119588-016-1030ND
2016-07-119588-037-1000ND
2016-11-299588-035-0930ND
2017-02-019588-001-0935ND
2017-02-019588-003-0810ND
2017-02-079588-007-1030ND
2017-02-079588-027-1000ND
2017-02-079588-028-0930ND
2017-02-239588-020-1030ND
2017-02-239588-022-1040ND
2017-02-239588-023-1020ND
2017-02-249588-026-0830ND
2017-02-249588-043-0920ND
2017-02-249588-063-0930ND
2017-02-249588-064-0910ND
2017-03-319588-006-101039.0 ppb
2017-05-089588-011-1105ND
2017-05-099588-024-1005ND
2017-05-099588-041-0925ND
2017-06-139588-033-1000ND
2017-06-139588-042-0945ND
2017-06-199588-034-0910ND
2017-06-199588-072-0850ND
2017-07-269588-038-0830ND
2017-08-079588-067-1100ND
2017-09-149588-031-1320ND
2017-09-149588-044-1420ND
2017-09-149588-045-1340ND
2018-01-199588-076-0800ND
2018-03-129588-023-0940ND
2018-03-159588-006-1110ND
2018-03-159588-007-0810ND
2018-03-159588-020-0730ND
2018-03-269588-043-0950ND
2018-04-099588-040-1030ND
2018-05-219588-063-0840ND
2018-06-119588-034-1030ND
2018-06-119588-037-1130ND
2018-06-119588-068-0947ND
2018-06-119588-072-1020ND
2018-06-259588-065-0900ND
2018-07-059588-028-0750ND
2018-07-099588-033-1140ND
2018-07-179588-042-0954ND
2018-07-179588-067-1030ND
2018-07-309588-031-0800ND
2018-07-309588-045-0730ND
2019-01-029588-076-1000ND
2019-06-179588-064-0915ND
2019-07-119588-043-0810ND
2019-12-099L09090-01ND
2019-12-099L09090-023.40 ppb
2019-12-099L09090-03ND
2019-12-099L09090-040.830 ppb
2019-12-099L09090-05ND
2019-12-099L09090-06ND
2019-12-099L09090-07ND
2019-12-099L09090-08ND
2019-12-099L09090-09ND
2020-03-090B27002-01ND
2020-03-090B27002-02ND
2020-03-090B27002-03ND
2020-03-090B27002-04ND
2020-03-090B27002-051.30 ppb
2020-03-090B27002-06ND
2020-03-090B27002-07ND
2020-06-100F11059-020.530 ppb
2020-06-100F11059-04ND
2020-06-110F11059-01ND
2020-06-110F11059-03ND
2020-06-110F11059-05ND
2020-06-110F11059-06ND
2020-06-110F11059-07ND
2020-06-110F11059-08ND
2020-06-110F11059-09ND
2020-06-110F11059-10ND
2020-09-010I01127-01ND
2020-09-010I01127-02ND
2020-09-010I01127-030.540 ppb
2020-09-010I01127-040.540 ppb
2020-09-010I01127-05ND
2020-09-010I01127-06ND
2020-09-010I01127-07ND
2020-12-070L07073-011.50 ppb