Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Ruston Water System

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).

 

37

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0114 ppb367ND - 0.140 ppb
2015ND10ND
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
2014-05-013019264ND
2014-05-013019324ND
2014-05-013019356ND
2014-05-013019343ND
2014-05-013019290ND
2014-05-013019272ND
2014-05-013019312ND
2014-05-0130192460.0500 ppb
2014-05-013019364ND
2014-05-013019338ND
2014-05-013019351ND
2014-05-0130192380.0500 ppb
2014-05-023019259ND
2014-05-0230192850.0400 ppb
2014-05-023019233ND
2014-05-023019225ND
2014-05-023019277ND
2014-05-023019251ND
2014-11-113138084ND
2014-11-113137988ND
2014-11-1131382950.140 ppb
2014-11-113137898ND
2014-11-113138197ND
2014-11-113138162ND
2014-11-1131383450.0400 ppb
2014-11-113138182ND
2014-11-1131383660.0500 ppb
2014-11-113138327ND
2014-11-113137906ND
2014-11-113138257ND
2014-11-113138151ND
2014-11-113138005ND
2014-11-113138285ND
2014-11-113138104ND
2014-11-113138243ND
2014-11-1131383190.0400 ppb
2015-01-123168376ND