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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Deerfield

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)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.229 ppb880.200 ppb - 0.280 ppb
20140.200 ppb440.1000 ppb - 0.240 ppb
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 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
2013-02-12211072010.230 ppb
2013-02-12211073010.220 ppb
2013-05-07219650010.210 ppb
2013-05-07219651010.210 ppb
2013-08-07232455010.270 ppb
2013-08-07232454010.280 ppb
2013-11-12240843010.200 ppb
2013-11-12240842010.210 ppb