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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Arizona Water Company - Pinal Valley

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.

 

20

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
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
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
2020-02-0420B0530-01ND
2020-02-0420B0422-07ND
2020-02-0420B0422-330.850 ppb
2020-02-0420B0422-41ND
2020-02-0420B0527-050.580 ppb
2020-02-0420B0422-15ND
2020-02-0420B0422-230.830 ppb
2020-02-0420B0527-010.530 ppb
2020-02-0420B0422-01ND
2020-02-1820B2029-01ND
2020-08-0420H0446-33ND
2020-08-0420H0446-290.710 ppb
2020-08-0420H0446-250.810 ppb
2020-08-0420H0446-21ND
2020-08-0420H0446-17ND
2020-08-0420H0446-13ND
2020-08-0420H0446-09ND
2020-08-0420H0446-050.760 ppb
2020-08-0420H0446-01ND
2020-08-0420H0446-37ND