Know Your Environment. Protect Your Health.

Chromium (total)

Woden Water Supply Corporation

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
2018N/A00N/A
2019N/A00N/A
2020ND60ND
2021N/A00N/A
2022N/A00N/A
20230.550 ppb61ND - 3.30 ppb

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
2020-04-07Q2014004015ND
2020-04-07Q2014004016ND
2020-04-07Q2014004017ND
2020-11-04Q2042876014ND
2020-11-04Q2042876015ND
2020-11-04Q2042876016ND
2023-03-01Q23082610093.30 ppb
2023-06-27Q2324601019ND
2023-06-27Q2324601020ND
2023-06-27Q2324601021ND
2023-06-27Q2324601022ND
2023-06-27Q2324601023ND