Know Your Environment. Protect Your Health.

Chromium (total)

City of Ballinger

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20192.10 ppb112.10 ppb
20201.60 ppb111.60 ppb
2021ND10ND
20221.90 ppb111.90 ppb
2023ND10ND

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
2018-02-22Q1807533006ND
2019-03-07Q19098300062.10 ppb
2020-06-09Q20231400051.60 ppb
2021-03-09Q2106093004ND
2022-02-28Q22067420021.90 ppb
2023-03-13Q2309647008ND