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EWG's Tap Water Database — 2019 UPDATE

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Manganese

City of Ripon

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND30ND
2014ND10ND
2015ND20ND
2016ND30ND
2017ND30ND

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
2012-06-132625-007-0927ND
2012-06-132625-003-0725ND
2013-06-262625-010-1425ND
2013-10-292625-020-0935ND
2013-11-052625-024-0810ND
2014-06-052625-022-1405ND
2015-01-222625-003-0930ND
2015-06-082625-007-0955ND
2016-06-152625-010-0820ND
2016-10-202625-020-1045ND
2016-11-022625-024-1000ND
2017-06-142625-010-0930ND
2017-10-242625-020-1020ND
2017-11-152625-024-0924ND