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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Chino Basin Desalter Authority - Desalter 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

 

142

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20148.12 ppb262ND - 210.0 ppb
20150.111 ppb272ND - 2.00 ppb
20160.111 ppb273ND - 1.000 ppb
20170.125 ppb242ND - 2.00 ppb
2018ND190ND
2019ND190ND

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
2014-01-141808-016-10401.000 ppb
2014-01-214790-021-1400210.0 ppb
2014-02-111808-017-0803ND
2014-04-081808-016-0652ND
2014-05-131808-017-0845ND
2014-06-184790-021-1036ND
2014-07-024790-001-0845ND
2014-07-024790-002-0745ND
2014-07-024790-004-0600ND
2014-07-081808-016-0648ND
2014-07-094790-005-0645ND
2014-07-094790-006-0845ND
2014-07-094790-007-0915ND
2014-07-094790-008-0745ND
2014-07-164790-009-0600ND
2014-07-164790-010-0700ND
2014-07-164790-011-0800ND
2014-07-164790-013-0915ND
2014-07-234790-015-0600ND
2014-07-234790-020-0904ND
2014-08-121808-017-0600ND
2014-08-134790-014-0900ND
2014-09-094790-021-0844ND
2014-10-141808-016-0950ND
2014-11-111808-017-0620ND
2014-12-304790-021-1035ND
2015-01-121808-016-07152.00 ppb
2015-02-101808-017-0600ND
2015-03-104790-021-1020ND
2015-04-141808-016-0850ND
2015-05-121808-017-0715ND
2015-06-091808-016-0736ND
2015-07-014790-001-0910ND
2015-07-014790-002-0830ND
2015-07-014790-004-1014ND
2015-07-084790-005-0730ND
2015-07-084790-008-0820ND
2015-07-084790-009-0915ND
2015-07-084790-010-1020ND
2015-07-084790-011-1123ND
2015-07-141808-016-0708ND
2015-07-154790-020-0730ND
2015-07-154790-021-0650ND
2015-07-154790-021-0730ND
2015-07-224790-006-1120ND
2015-07-224790-007-1045ND
2015-07-224790-013-0945ND
2015-07-224790-014-0853ND
2015-08-111808-017-08331.000 ppb
2015-09-081808-016-0735ND
2015-10-131808-016-0640ND
2015-11-101808-017-0750ND
2015-12-091808-016-0630ND
2016-01-121808-016-0940ND
2016-02-091808-017-07001.000 ppb
2016-03-081808-016-0610ND
2016-04-044790-015-0945ND
2016-04-121808-016-0656ND
2016-05-101808-017-07201.000 ppb
2016-06-141808-016-0745ND
2016-07-064790-005-0600ND
2016-07-064790-008-0650ND
2016-07-064790-009-0800ND
2016-07-064790-010-0910ND
2016-07-121808-016-0645ND
2016-07-134790-006-0700ND
2016-07-134790-007-0630ND
2016-07-134790-021-0800ND
2016-07-204790-011-0700ND
2016-07-204790-013-0800ND
2016-07-204790-014-0900ND
2016-07-204790-020-1000ND
2016-07-274790-001-0700ND
2016-07-274790-002-0730ND
2016-07-274790-004-0845ND
2016-08-091808-017-0810ND
2016-09-131808-016-0635ND
2016-10-111808-016-0748ND
2016-11-081808-017-07331.000 ppb
2016-12-131808-016-0720ND
2017-01-101808-016-0908ND
2017-02-141808-017-07051.000 ppb
2017-03-141808-016-0555ND
2017-04-111808-016-0645ND
2017-05-091808-017-07302.00 ppb
2017-06-131808-016-0850ND
2017-07-111808-016-0755ND
2017-07-124790-020-0600ND
2017-07-124790-023-0930ND
2017-07-124790-024-0630ND
2017-07-194790-011-0530ND
2017-07-194790-013-0630ND
2017-07-194790-014-0730ND
2017-07-194790-015-0830ND
2017-07-264790-006-0900ND
2017-07-264790-007-0930ND
2017-07-264790-021-0700ND
2017-08-024790-001-0700ND
2017-08-024790-004-0815ND
2017-08-081808-017-0750ND
2017-09-121808-016-0840ND
2017-10-101808-016-0815ND
2017-11-141808-017-0840ND
2017-12-111808-016-0705ND
2018-04-101808-016-1310ND
2018-06-121808-016-0850ND
2018-07-124790-006-0930ND
2018-07-124790-007-1050ND
2018-07-124790-021-0700ND
2018-07-174790-005-0830ND
2018-07-174790-008-0715ND
2018-07-174790-009-1015ND
2018-07-174790-010-1100ND
2018-07-244790-011-0635ND
2018-07-244790-013-0720ND
2018-07-244790-014-0800ND
2018-07-244790-015-0900ND
2018-07-314790-001-0445ND
2018-07-314790-002-0530ND
2018-07-314790-004-0830ND
2018-08-074790-023-0945ND
2018-08-074790-024-1030ND
2018-08-144790-020-0730ND
2019-05-141808-017-0653ND
2019-07-104790-001-1015ND
2019-07-104790-002-0915ND
2019-07-104790-004-1100ND
2019-07-174790-005-0745ND
2019-07-174790-008-0830ND
2019-07-174790-009-0900ND
2019-07-174790-010-0800ND
2019-07-244790-013-0930ND
2019-07-244790-014-0900ND
2019-07-244790-015-1000ND
2019-07-314790-006-1000ND
2019-07-314790-007-0900ND
2019-07-314790-021-0945ND
2019-08-074790-023-0800ND
2019-08-074790-024-0730ND
2019-08-134790-017-0720ND
2019-08-144790-020-0830ND
2019-11-124790-017-0935ND