Know Your Environment. Protect Your Health.

Chromium (total)

City of Brady Water System

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
2019ND60ND
2020N/A00N/A
2021N/A00N/A
2022ND60ND
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
2019-04-15AE62464ND
2019-04-15AE62465ND
2019-04-15AE62466ND
2019-07-15AE74555ND
2019-07-15AE74556ND
2019-07-15AE74557ND
2022-03-08AF87961ND
2022-03-08AF87963ND
2022-03-08AF87964ND
2022-03-08AF87965ND
2022-03-08AF87966ND
2022-03-08AF87967ND