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EWG's Tap Water Database

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Chromium (hexavalent)

Calera Water Works

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).

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
20130.138 ppb440.110 ppb - 0.180 ppb
20140.118 ppb440.1000 ppb - 0.130 ppb
2015N/A00N/A

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.02 ppb

The 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
2013-09-1729005490.110 ppb
2013-09-1729005580.130 ppb
2013-12-1829494890.180 ppb
2013-12-1829493480.130 ppb
2014-03-0729913920.1000 ppb
2014-03-0729913830.110 ppb
2014-06-0430415510.130 ppb
2014-07-1130626660.130 ppb