Chromium (hexavalent)

Jordan Valley Water Conservancy 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).

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
2013	0.477 ppb	29	27	ND - 2.85 ppb
2014	0.960 ppb	5	5	0.0880 ppb - 4.21 ppb
2015	N/A	0	0	N/A
2016	2.00 ppb	3	1	ND - 6.00 ppb
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	Result
2013-04-16	0.150 ppb
2013-04-16	0.110 ppb
2013-04-16	0.233 ppb
2013-04-16	0.245 ppb
2013-05-01	0.241 ppb
2013-05-01	0.765 ppb
2013-05-08	0.604 ppb
2013-05-08	0.373 ppb
2013-05-15	1.21 ppb
2013-05-15	0.0560 ppb
2013-06-05	0.989 ppb
2013-06-26	0.877 ppb
2013-06-26	2.85 ppb
2013-07-09	0.166 ppb
2013-07-09	0.0990 ppb
2013-07-11	ND
2013-07-11	0.0610 ppb
2013-10-03	0.436 ppb
2013-10-03	0.693 ppb
2013-10-03	0.0400 ppb
2013-10-03	0.115 ppb
2013-10-03	0.220 ppb
2013-10-09	0.0710 ppb
2013-10-10	0.310 ppb
2013-10-15	1.22 ppb
2013-10-22	0.256 ppb
2013-11-05	0.675 ppb
2013-12-02	0.756 ppb
2013-12-02	ND
2014-01-07	0.1000 ppb
2014-01-07	0.0970 ppb
2014-01-08	0.305 ppb
2014-01-13	0.0880 ppb
2014-02-19	4.21 ppb
2016-02-16	ND
2016-02-25	ND
2016-03-15	6.00 ppb