Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chromium (hexavalent)

City of Henderson

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).

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0597 ppb18180.0500 ppb - 0.0670 ppb
20150.0492 ppb660.0420 ppb - 0.0560 ppb
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
2014-05-19201405210786AM0.0640 ppb
2014-05-19201405210792AM0.0630 ppb
2014-05-19201405210788AM0.0670 ppb
2014-05-19201405210794AM0.0660 ppb
2014-05-19201405210784AM0.0570 ppb
2014-05-19201405210790AM0.0580 ppb
2014-08-26201408280824AM0.0660 ppb
2014-08-26201408280818AM0.0650 ppb
2014-08-26201408280822AM0.0570 ppb
2014-08-26201408280820AM0.0510 ppb
2014-08-26201408280816AM0.0620 ppb
2014-08-26201408280814AM0.0600 ppb
2014-11-13201411180610AM0.0550 ppb
2014-11-13201411180612AM0.0500 ppb
2014-11-13201411180608AM0.0640 ppb
2014-11-13201411180602AM0.0540 ppb
2014-11-13201411180606AM0.0580 ppb
2014-11-13201411180604AM0.0580 ppb
2015-02-11201502130314AM0.0420 ppb
2015-02-11201502130320AM0.0540 ppb
2015-02-11201502130318AM0.0480 ppb
2015-02-11201502130322AM0.0560 ppb
2015-02-11201502130316AM0.0530 ppb
2015-02-11201502130324AM0.0420 ppb