Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Erwin Utilities

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).

 

24

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.265 ppb880.160 ppb - 0.460 ppb
20150.257 ppb16160.170 ppb - 0.420 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
2014-10-220.170 ppb
2014-10-220.460 ppb
2014-10-220.260 ppb
2014-10-220.160 ppb
2014-10-220.180 ppb
2014-10-220.300 ppb
2014-10-220.240 ppb
2014-10-220.350 ppb
2015-01-220.280 ppb
2015-01-220.370 ppb
2015-01-220.240 ppb
2015-01-220.170 ppb
2015-04-230.180 ppb
2015-04-230.170 ppb
2015-04-230.230 ppb
2015-04-230.190 ppb
2015-04-230.330 ppb
2015-04-230.220 ppb
2015-04-230.320 ppb
2015-04-230.420 ppb
2015-07-230.240 ppb
2015-07-230.170 ppb
2015-07-230.330 ppb
2015-07-230.250 ppb