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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Enterprise Water Works

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.

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69

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
2016ND160ND
2017ND40ND
2018N/A00N/A
20190.558 ppb328ND - 11.1 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
2014-11-181411-00235-6IND
2016-10-181610-00215-1IND
2016-12-06161200141-10ND
2016-12-06161200141-14ND
2016-12-061612-00141-32ND
2016-12-06161200141-12ND
2016-12-06161200141-25ND
2016-12-06161200141-18ND
2016-12-06161200141-6ND
2016-12-06161200141-2ND
2016-12-061612-00141-35ND
2016-12-06161200141-20ND
2016-12-06161200141-16ND
2016-12-06161200141-8ND
2016-12-06161200141-27ND
2016-12-061612-00141-30ND
2016-12-06161200141-4ND
2017-03-211703-00293-2ND
2017-04-241704-00401-1ND
2017-10-31171100018-11ND
2017-10-31171100018-1ND
2019-09-2535501804017SEA12.20 ppb
2019-09-2535501804016SEA1ND
2019-09-2535501804003SEA111.1 ppb
2019-09-2535501804001SEA1ND
2019-09-2535501804004SEA11.10 ppb
2019-09-2535501804005SEA10.530 ppb
2019-09-2535501804006SEA10.420 ppb
2019-09-2535501804007SEA10.420 ppb
2019-09-2535501804008SEA1ND
2019-09-2635501804002SEA1ND
2019-09-2635501804009SEA1ND
2019-09-2635501804010SEA1ND
2019-09-2635501804011SEA1ND
2019-09-2635501804012SEA1ND
2019-09-2635501804013SEA10.500 ppb
2019-09-2635501804014SEA11.60 ppb
2019-09-2635501804015SEA1ND
2019-12-181912-00393-014ND
2019-12-181912-00393-004ND
2019-12-181912-00393-012ND
2019-12-181912-00393-001ND
2019-12-181912-00393-006ND
2019-12-181912-00393-013ND
2019-12-181912-00393-010ND
2019-12-181912-00393-008ND
2019-12-181912-00393-007ND
2019-12-181912-00393-009ND
2019-12-181912-00393-002ND
2019-12-181912-00393-003ND
2019-12-181912-00393-011ND
2019-12-181912-00393-015ND
2019-12-181912-00393-005ND
2020-03-2435539979014SEA2ND
2020-03-2435539979012SEA20.760 ppb
2020-03-2435539979013SEA2ND
2020-03-2435539979016SEA26.20 ppb
2020-03-2435539979015SEA2ND
2020-03-2435539979002SEA2ND
2020-03-2435539979011SEA2ND
2020-03-2435539979010SEA2ND
2020-03-2435539979009SEA2ND
2020-03-2435539979008SEA2ND
2020-03-2435539979007SEA2ND
2020-03-2435539979006SEA2ND
2020-03-2435539979005SEA2ND
2020-03-2435539979004SEA21.20 ppb
2020-03-2435539979003SEA219.8 ppb
2020-03-2435539979001SEA2ND