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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Felton Water Department

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.250 ppb21ND - 0.500 ppb
20130.167 ppb31ND - 0.500 ppb
20140.400 ppb42ND - 0.900 ppb
20150.127 ppb112ND - 0.800 ppb
20161.93 ppb440.500 ppb - 5.60 ppb
2017N/A00N/A

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
2012-11-13S236947ND
2012-12-13S2369520.500 ppb
2013-06-30S254523ND
2013-09-11S254542ND
2013-12-04S2545580.500 ppb
2014-01-09S254559ND
2014-06-18S5271410.700 ppb
2014-10-02S527157ND
2014-10-14S5271620.900 ppb
2015-01-07S527203ND
2015-02-04S5272080.600 ppb
2015-03-10S527215ND
2015-04-07S527220ND
2015-05-05S527225ND
2015-06-18S527232ND
2015-07-15S527237ND
2015-08-10S527245ND
2015-09-09S527256ND
2015-10-28S527262ND
2015-12-09S5272720.800 ppb
2016-01-13S5272790.700 ppb
2016-03-14S5272875.60 ppb
2016-11-09S5273270.500 ppb
2016-12-12S5273320.900 ppb