Chromium (hexavalent)

City of Sunnyside

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.327 ppb	20	16	ND - 1.64 ppb
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/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
2014-03-31	WA97-SE1-14-0546	1.44 ppb
2014-03-31	WA97-SE1-14-0546	ND
2014-03-31	WA97-SE1-14-0546	0.756 ppb
2014-03-31	WA97-SE1-14-0546	ND
2014-03-31	WA97-SE1-14-0546	0.167 ppb
2014-03-31	WA97-SE1-14-0546	0.0950 ppb
2014-03-31	WA97-SE1-14-0546	0.0860 ppb
2014-03-31	WA97-SE1-14-0546	0.0790 ppb
2014-03-31	WA97-SE1-14-0546	0.191 ppb
2014-03-31	WA97-SE1-14-0546	0.107 ppb
2014-09-03	WA97-SE2-14-1726	0.188 ppb
2014-09-03	WA97-SE2-14-1726	ND
2014-09-03	WA97-SE2-14-1779	0.548 ppb
2014-09-03	WA97-SE2-14-1726	0.183 ppb
2014-09-03	WA97-SE2-14-1726	0.0660 ppb
2014-09-03	WA97-SE2-14-1726	0.0300 ppb
2014-09-03	WA97-SE2-14-1726	ND
2014-09-03	WA97-SE2-14-1726	0.199 ppb
2014-09-03	WA97-SE2-14-1726	0.757 ppb
2014-09-03	WA97-SE2-14-1779	1.64 ppb