Chromium (hexavalent)

City of Beloit

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	0.640 ppb	24	24	0.0520 ppb - 2.08 ppb
2014	N/A	0	0	N/A
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
2013-03-11	709314-8321	0.611 ppb
2013-03-11	709326-8321	0.212 ppb
2013-03-11	709336-8321	0.197 ppb
2013-03-11	709330-8321	2.08 ppb
2013-03-11	709310-8321	0.504 ppb
2013-03-11	709318-8321	0.490 ppb
2013-03-11	709320-8321	0.607 ppb
2013-03-11	709322-8321	0.500 ppb
2013-03-11	709316-8321	0.606 ppb
2013-03-11	709338-8321	0.531 ppb
2013-03-11	709312-8321	1.12 ppb
2013-03-11	709324-8321	0.548 ppb
2013-09-16	745339-9759	0.763 ppb
2013-09-16	745343-9759	0.762 ppb
2013-09-16	745335-9747	0.651 ppb
2013-09-16	745345-9759	0.703 ppb
2013-09-16	745347-9759	0.672 ppb
2013-09-16	745337-9759	0.756 ppb
2013-09-16	745329-9747	0.541 ppb
2013-09-16	745327-9747	1.12 ppb
2013-09-16	745331-9747	0.522 ppb
2013-09-16	745333-9747	0.107 ppb
2013-11-13	758608-10292	0.698 ppb
2013-11-13	758607-10292	0.0520 ppb