Chromium (hexavalent)

Westbury WD

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	0.521 ppb	11	11	0.180 ppb - 0.860 ppb
2014	0.524 ppb	11	11	0.0820 ppb - 0.890 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
2013-07-22	201307230184AM	0.530 ppb
2013-07-22	201307230188AM	0.660 ppb
2013-07-22	201307230266AM	0.430 ppb
2013-07-22	201307230190AM	0.740 ppb
2013-07-22	201307230186AM	0.820 ppb
2013-07-23	201307250281AM	0.660 ppb
2013-07-23	201307250283AM	0.420 ppb
2013-07-23	201307250285AM	0.250 ppb
2013-10-01	201310020366AM	0.180 ppb
2013-10-01	201310020368AM	0.180 ppb
2013-10-01	201310020364AM	0.860 ppb
2014-01-30	35124616013AM	0.890 ppb
2014-01-30	35124616019AM	0.820 ppb
2014-01-30	35124616009AM	0.120 ppb
2014-01-30	35124616005AM	0.860 ppb
2014-01-30	35124616007AM	0.700 ppb
2014-01-30	35124616015AM	0.610 ppb
2014-01-30	35124616017AM	0.670 ppb
2014-01-30	35124616011AM	0.210 ppb
2014-01-30	35124616001AM	0.130 ppb
2014-01-30	35124616003AM	0.0820 ppb
2014-08-21	35152380001AM	0.670 ppb