Chromium (hexavalent)

Hudson Waterworks

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	0.0920 ppb	24	10	ND - 0.336 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
2014-02-11	770163-10728	ND
2014-02-11	770157-10728	ND
2014-02-11	770161-10728	ND
2014-02-11	770165-10728	0.240 ppb
2014-02-12	770588-10744	0.298 ppb
2014-02-12	770596-10744	0.0730 ppb
2014-02-12	770594-10744	ND
2014-02-12	770600-10744	0.280 ppb
2014-02-12	770590-10744	0.131 ppb
2014-02-27	772526-10825	ND
2014-02-27	772528-10835	ND
2014-02-27	772524-10825	ND
2014-08-04	808057-12015	0.246 ppb
2014-08-04	808059-12015	ND
2014-08-04	808055-12015	ND
2014-08-05	808535-12015	ND
2014-08-05	808532-12015	0.331 ppb
2014-08-05	808537-12015	ND
2014-08-06	808887-12024	0.102 ppb
2014-08-06	808889-12024	ND
2014-08-06	808879-12024	0.171 ppb
2014-08-06	808885-12024	ND
2014-08-06	808883-12024	0.336 ppb
2014-08-25	813167-12167	ND