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EWG's Tap Water Database

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Chromium (hexavalent)

East Cherry Creek Valley Water and Sanitation District

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).

 

36

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
2013N/A00N/A
20140.0157 ppb3614ND - 0.0540 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 Result
2014-02-10ND
2014-02-10ND
2014-02-10ND
2014-02-10ND
2014-02-11ND
2014-02-24ND
2014-02-24ND
2014-02-240.0330 ppb
2014-02-240.0540 ppb
2014-02-240.0480 ppb
2014-02-24ND
2014-02-24ND
2014-02-24ND
2014-02-24ND
2014-02-260.0460 ppb
2014-02-260.0360 ppb
2014-05-12ND
2014-05-12ND
2014-08-120.0330 ppb
2014-08-13ND
2014-08-14ND
2014-08-14ND
2014-08-19ND
2014-08-19ND
2014-08-200.0440 ppb
2014-08-200.0400 ppb
2014-08-200.0370 ppb
2014-08-200.0410 ppb
2014-08-200.0450 ppb
2014-08-210.0360 ppb
2014-08-25ND
2014-08-26ND
2014-08-26ND
2014-08-26ND
2014-11-100.0360 ppb
2014-11-240.0360 ppb