Know Your Environment. Protect Your Health.

Chromium (total)

Pulaski County Public Water Supply District 2

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019N/A00N/A
2020N/A00N/A
2021ND60ND
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-28AD14551ND
2018-02-28AD14552ND
2018-02-28AD14553ND
2018-02-28AD14554ND
2018-02-28AD14555ND
2018-03-05AD17400ND
2021-02-222100420ND
2021-02-222100785ND
2021-02-222100421ND
2021-02-222100786ND
2021-02-222100418ND
2021-02-222100419ND