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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Golden State Water Company (GSWC) - South Arcadia

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
2012ND60ND
2013ND10ND
2014N/A00N/A
2015ND60ND
2016ND10ND
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
2012-08-212706-002-1215ND
2012-08-212706-003-1220ND
2012-08-212706-005-1400ND
2012-08-212706-006-1345ND
2012-08-212706-014-1420ND
2012-08-212706-015-1320ND
2013-05-232706-004-1040ND
2015-08-172706-002-1043ND
2015-08-172706-003-1048ND
2015-08-172706-005-0924ND
2015-08-172706-006-0915ND
2015-08-172706-014-0955ND
2015-08-172706-015-0835ND
2016-06-202706-004-1038ND