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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Bell County Water Control and Improvement District 1

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
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
2014-02-06AC41661ND
2014-06-20AC57570ND
2014-06-20AC57571ND
2015-04-28AC89678ND
2015-04-28AC89669ND
2015-04-28AC89677ND
2016-04-26AD34138ND
2016-04-26AD34137ND
2016-04-26AD34136ND
2017-03-13AD74596ND
2017-03-13AD74592ND
2017-09-08AD95264ND
2018-02-28AE15943ND
2018-02-28AE15944ND
2018-02-28AE15947ND
2019-03-27AE60178ND
2019-05-31AE68720ND