Chromium (hexavalent)

City of Cleburne

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	0.0716 ppb	10	4	ND - 0.299 ppb
2015	0.172 ppb	15	12	ND - 0.274 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
2014-07-08	4G11049-06	ND
2014-07-08	4G11049-03	0.0332 ppb
2014-07-08	4G11049-07	ND
2014-07-08	4G11049-08	ND
2014-07-08	4G11049-02	ND
2014-07-08	4G11049-04	0.0921 ppb
2014-07-08	4G11049-01	ND
2014-07-08	4G11049-05	ND
2014-10-22	4J29006-02	0.292 ppb
2014-10-22	4J29006-01	0.299 ppb
2015-01-21	5A27016-12	0.190 ppb
2015-01-21	5A27016-05	0.0726 ppb
2015-01-21	5A27016-11	0.243 ppb
2015-01-21	5A27016-04	ND
2015-01-21	5A27016-07	0.240 ppb
2015-01-21	5A27016-10	0.263 ppb
2015-01-21	5A27016-09	0.0683 ppb
2015-01-21	5A27016-08	0.250 ppb
2015-01-21	5A27016-13	0.265 ppb
2015-01-21	5A27016-06	0.237 ppb
2015-01-21	5A27016-01	0.202 ppb
2015-01-21	5A27016-03	ND
2015-01-21	5A27016-02	ND
2015-04-01	5D07006-02	0.274 ppb
2015-04-01	5D07006-01	0.269 ppb