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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Green Valley SUD

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

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016ND30ND
2017ND30ND
2018N/A00N/A
20190.0325 ppb773ND - 1.30 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
2016-01-20AD18839ND
2016-01-20AD18840ND
2016-04-06AD31994ND
2017-01-30AD67453ND
2017-01-30AD67454ND
2017-04-20AD80298ND
2019-02-05AE52831ND
2019-02-05AE52832ND
2019-02-05AE52833ND
2019-03-21547154ND
2019-03-21547155ND
2019-03-21547152ND
2019-03-21547151ND
2019-03-21547150ND
2019-03-21547153ND
2019-03-26547512ND
2019-03-26547516ND
2019-03-26547513ND
2019-03-26547514ND
2019-03-26547515ND
2019-03-27547695ND
2019-03-27547693ND
2019-03-27547692ND
2019-03-27547694ND
2019-03-27547691ND
2019-04-16550112ND
2019-04-16550110ND
2019-04-16550109ND
2019-04-16550108ND
2019-04-16550111ND
2019-04-16550113ND
2019-05-09Q1923490001ND
2019-05-09Q1923490002ND
2019-05-09Q19234900050.400 ppb
2019-05-09Q1923490003ND
2019-05-09Q19234900040.800 ppb
2019-05-15553676ND
2019-05-15553677ND
2019-05-15553678ND
2019-05-15553679ND
2019-05-15553675ND
2019-06-25558407ND
2019-06-25558406ND
2019-06-25558409ND
2019-06-25558408ND
2019-06-25558410ND
2019-08-22Q19588830011.30 ppb
2019-09-03566694ND
2019-09-03566695ND
2019-09-03566696ND
2019-09-03566697ND
2019-09-03566698ND
2019-09-03566699ND
2019-09-04566944ND
2019-09-04566947ND
2019-09-04566946ND
2019-09-04566945ND
2019-09-04566948ND
2019-09-09567392ND
2019-09-09567391ND
2019-09-09567390ND
2019-09-09567394ND
2019-09-09567393ND
2019-10-03571023ND
2019-10-03571027ND
2019-10-03571026ND
2019-10-03571025ND
2019-10-03571024ND
2019-10-03571022ND
2019-11-12575530ND
2019-11-12575528ND
2019-11-12575529ND
2019-11-12575531ND
2019-11-12575527ND
2019-11-21Q1977736003ND
2019-11-21Q1977736002ND
2019-11-21Q1977736004ND
2019-11-21Q1977736001ND
2019-12-11579079ND
2019-12-11579080ND
2019-12-11579081ND
2019-12-11579082ND
2019-12-11579078ND
2020-02-26Q2007262001ND