Know Your Environment. Protect Your Health.

Chromium (total)

Travis County Municipal Utility District 4

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
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-02-15AE13979ND
2018-08-13AE36529ND
2019-02-14AE54531ND
2019-02-14AE54532ND
2020-03-03AF00801ND
2020-07-23AF20311ND
2021-01-25AF40610ND
2021-01-25AF40615ND
2022-02-10AF84174ND
2022-04-28AF94756ND
2023-02-14AG28752ND
2023-02-14AG28753ND