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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

Marion Municipal Water Department

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND60ND
2014ND80ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-10-0723764301ND
2013-10-0723764101ND
2013-10-0723764201ND
2013-10-0723763901ND
2013-10-0723763801ND
2013-10-0723763701ND
2014-04-0825311001ND
2014-04-0825311301ND
2014-04-0825310901ND
2014-04-0825311201ND
2014-04-0825311501ND
2014-04-0825311401ND
2014-10-0727287701ND
2014-10-0727287601ND
2015-04-0728660201ND
2015-05-0529061001ND