Chromium (hexavalent)

Upper Southampton Mun Authority

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	0.144 ppb	20	17	ND - 0.391 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
2014-02-12	770500-10735	0.307 ppb
2014-02-12	770508-10744	0.166 ppb
2014-02-12	770504-10735	ND
2014-02-12	770502-10735	0.304 ppb
2014-02-12	770456-10735	0.134 ppb
2014-02-12	770458-10735	0.212 ppb
2014-02-12	770506-10735	0.115 ppb
2014-02-12	770510-10744	0.157 ppb
2014-05-12	785219-11341	0.369 ppb
2014-05-12	785217-11327	0.391 ppb
2014-08-11	809640-12026	0.149 ppb
2014-08-11	809693-12026	0.0650 ppb
2014-08-11	809671-12026	0.0770 ppb
2014-08-11	809673-12026	0.0610 ppb
2014-08-11	809669-12026	0.143 ppb
2014-08-11	809691-12026	ND
2014-08-11	809675-12026	0.0640 ppb
2014-08-11	809638-12026	0.130 ppb
2014-11-19	832523-12900	ND
2014-11-19	832521-12900	0.0410 ppb