Chromium (hexavalent)

Hampton Shaler Water 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	N/A	0	0	N/A
2015	0.224 ppb	20	19	ND - 0.870 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
2015-03-10	35179716007AM	0.430 ppb
2015-03-10	35179716003AM	0.0420 ppb
2015-03-10	35179716001AM	0.150 ppb
2015-03-10	35179716011AM	ND
2015-03-10	35179716009AM	0.0560 ppb
2015-03-10	35179716005AM	0.0540 ppb
2015-06-10	35193400007AM	0.0730 ppb
2015-06-10	35193400005AM	0.120 ppb
2015-06-10	35193400003AM	0.120 ppb
2015-06-10	35193400001AM	0.140 ppb
2015-09-15	35208036011AM	0.1000 ppb
2015-09-15	35208036007AM	0.680 ppb
2015-09-15	35208036009AM	0.130 ppb
2015-09-15	35208036001AM	0.870 ppb
2015-09-15	35208036005AM	0.120 ppb
2015-09-15	35208036003AM	0.0360 ppb
2015-12-07	35220148003AM	0.0700 ppb
2015-12-07	35220148005AM	0.610 ppb
2015-12-07	35220148007AM	0.0770 ppb
2015-12-07	35220148001AM	0.610 ppb