Know Your Environment. Protect Your Health.

Chromium (hexavalent)

City of West Richland

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).

 

18

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.360 ppb63ND - 1.46 ppb
20140.225 ppb1210ND - 1.45 ppb
20150.0718 ppb660.0540 ppb - 0.0820 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2013-10-07WA97-SE1-13-19288-437670.523 ppb
2013-10-07WA97-SE1-13-19288-43768ND
2013-10-07WA97-SE1-13-19288-43765ND
2013-10-07WA97-SE1-13-19288-43766ND
2013-10-07WA97-SE1-13-19288-437641.46 ppb
2013-10-17WA97-SE1-13-19288-437630.177 ppb
2014-01-15WA97-SE2-14-00933-24390.0840 ppb
2014-01-15WA97-SE2-14-00933-24400.115 ppb
2014-04-10WA97-SE2-14-06353-153871.45 ppb
2014-04-10WA97-SE2-14-06353-153910.496 ppb
2014-04-10WA97-SE2-14-06353-153920.0920 ppb
2014-04-10WA97-SE2-14-06353-153930.0790 ppb
2014-04-10WA97-SE2-14-06353-15388ND
2014-04-10WA97-SE2-14-06353-153860.168 ppb
2014-04-10WA97-SE2-14-06353-153900.0850 ppb
2014-04-10WA97-SE2-14-06353-15389ND
2014-07-07WA97-SE4-14-12445-292800.0690 ppb
2014-07-07WA97-SE4-14-12445-292790.0690 ppb