Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Loudon Utilities Board

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).

 

16

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.153 ppb87ND - 0.330 ppb
20150.148 ppb87ND - 0.320 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 Result
2014-09-180.330 ppb
2014-09-180.170 ppb
2014-09-180.250 ppb
2014-09-180.0300 ppb
2014-12-110.280 ppb
2014-12-110.1000 ppb
2014-12-110.0600 ppb
2014-12-11ND
2015-03-250.130 ppb
2015-03-250.0900 ppb
2015-03-250.0800 ppb
2015-03-250.220 ppb
2015-06-250.320 ppb
2015-06-250.210 ppb
2015-06-250.130 ppb
2015-06-25ND