Chromium (hexavalent)

Hicksville 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	0.270 ppb	22	22	0.130 ppb - 0.730 ppb
2014	N/A	0	0	N/A
2015	0.250 ppb	2	2	0.210 ppb - 0.290 ppb
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
2013-06-13	201306140127AM	0.320 ppb
2013-06-17	201306180130AM	0.290 ppb
2013-06-18	201306200196AM	0.240 ppb
2013-06-18	201306200194AM	0.420 ppb
2013-06-18	201306200207AM	0.200 ppb
2013-06-18	201306200205AM	0.210 ppb
2013-06-18	201306200209AM	0.150 ppb
2013-06-19	201306210181AM	0.210 ppb
2013-06-20	201306210183AM	0.170 ppb
2013-06-24	201306250108AM	0.130 ppb
2013-06-25	201306280152AM	0.730 ppb
2013-07-01	201307020555AM	0.150 ppb
2013-12-17	35120579005AM	0.160 ppb
2013-12-17	35120579003AM	0.190 ppb
2013-12-17	35120579001AM	0.280 ppb
2013-12-17	35120579009AM	0.160 ppb
2013-12-17	35120579007AM	0.240 ppb
2013-12-18	35120586001AM	0.340 ppb
2013-12-18	35120586005AM	0.180 ppb
2013-12-18	35120586003AM	0.320 ppb
2013-12-19	35120578003AM	0.170 ppb
2013-12-19	35120578001AM	0.680 ppb
2015-08-17	35203736001AM	0.210 ppb
2015-09-23	35208986001AM	0.290 ppb