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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Desert Water Agency

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

 

75

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND280ND
2017N/A00N/A
20180.333 ppb244ND - 5.70 ppb
2019ND210ND

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
2014-06-253761-060-1045ND
2015-09-233761-047-1000ND
2016-05-043761-060-0935ND
2016-05-043761-043-1030ND
2016-05-113761-015-1015ND
2016-05-113761-026-1125ND
2016-05-113761-022-1045ND
2016-05-183761-029-1030ND
2016-05-183761-030-1100ND
2016-06-083761-024-1015ND
2016-06-083761-044-0945ND
2016-06-153761-033-0000ND
2016-06-223761-046-1030ND
2016-06-223761-018-1115ND
2016-06-223761-017-1145ND
2016-06-223761-008-0945ND
2016-06-293761-040-1130ND
2016-07-133761-010-1115ND
2016-07-133761-025-0930ND
2016-07-133761-020-1200ND
2016-07-203761-039-1110ND
2016-07-213761-031-1025ND
2016-07-273761-027-1015ND
2016-08-173761-038-1100ND
2016-08-173761-034-0950ND
2016-09-073761-028-1100ND
2016-09-073761-047-1010ND
2016-09-073761-032-0930ND
2016-09-293761-019-0935ND
2016-09-293761-045-0925ND
2018-03-13201803141061ND
2018-03-13201803141060ND
2018-04-18201804190501ND
2018-04-182018041905005.70 ppb
2018-04-18201804190502ND
2018-04-182018041905050.710 ppb
2018-04-18201804190499ND
2018-04-18201804190503ND
2018-04-18201804190504ND
2018-06-12201806140954ND
2018-06-12201806140955ND
2018-07-113761-037-0745ND
2018-07-113761-034-1000ND
2018-09-192018092004021.000 ppb
2018-09-19201809200504ND
2018-10-17201810180451ND
2018-10-17201810180471ND
2018-10-17201810180470ND
2018-10-17201810180450ND
2018-10-17201810180452ND
2018-10-172018101804790.570 ppb
2018-10-17201810180456ND
2018-12-11201812120322ND
2018-12-11201812120323ND
2019-05-244790-029-1410ND
2019-05-244790-060-1345ND
2019-05-244790-030-0955ND
2019-05-244790-031-0730ND
2019-05-244790-043-0930ND
2019-06-194790-046-1110ND
2019-06-194790-044-1150ND
2019-06-194790-040-1000ND
2019-06-194790-026-1300ND
2019-06-194790-033-1430ND
2019-07-244790-025-1000ND
2019-07-244790-039-0730ND
2019-07-244790-031-1030ND
2019-07-254790-024-0200ND
2019-08-064790-038-1020ND
2019-08-064790-034-0745ND
2019-08-294790-019-1025ND
2019-08-294790-032-1105ND
2019-08-294790-045-0940ND
2019-08-294790-047-0740ND
2019-10-174790-027-0645ND