Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Hibbing

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).

 

9

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0120 ppb31ND - 0.0360 ppb
20150.0177 ppb62ND - 0.0540 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2014-08-2620257340030.0360 ppb
2014-08-262025734001ND
2014-08-262025734006ND
2015-02-2320560790010.0520 ppb
2015-02-232056079006ND
2015-02-232056079003ND
2015-06-162077328002ND
2015-06-1620773280010.0540 ppb
2015-06-162077328003ND