Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chromium (total)

US Army South Fort Hood

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
20150.117 ppb62ND - 0.500 ppb
2016ND30ND
2017ND30ND
2018ND30ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-10-153133225ND
2014-10-163133227ND
2015-01-1228027801ND
2015-02-0528442201ND
2015-04-1328659601ND
2015-05-14292463010.500 ppb
2015-07-1029541401ND
2015-07-10295413010.200 ppb