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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

North Las Vegas Utilities

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).

 

12

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.218 ppb10100.0540 ppb - 0.960 ppb
20150.0575 ppb220.0490 ppb - 0.0660 ppb
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
2014-04-15201404170354AM0.0670 ppb
2014-04-15201404170356AM0.960 ppb
2014-04-15201404170350AM0.0850 ppb
2014-04-15201404170352AM0.0640 ppb
2014-07-22201407250243AM0.0660 ppb
2014-07-22201407250245AM0.0660 ppb
2014-10-28201410300255AM0.0800 ppb
2014-10-28201410300257AM0.0620 ppb
2014-10-28201410300261AM0.680 ppb
2014-10-28201410300259AM0.0540 ppb
2015-01-27201501290234AM0.0660 ppb
2015-01-27201501290237AM0.0490 ppb