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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Ashland Water Utility

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
20181.04 ppb16160.230 ppb - 2.70 ppb
2019N/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
2018-02-0810402440.300 ppb
2018-02-0810402430.530 ppb
2018-02-0810402460.590 ppb
2018-02-0810402452.70 ppb
2018-02-1410410020.230 ppb
2018-02-1410410010.440 ppb
2018-02-1410409990.530 ppb
2018-02-1410410002.00 ppb
2018-10-2210883120.670 ppb
2018-10-2210883110.730 ppb
2018-10-2210883100.920 ppb
2018-10-2210883132.10 ppb
2018-10-3010902050.850 ppb
2018-10-3010902040.890 ppb
2018-10-3010902030.920 ppb
2018-10-3010902062.30 ppb