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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

De Kalb

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND120ND
2014N/A00N/A
2015ND50ND
2016N/A00N/A
2017N/A00N/A

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
2012-04-101204492-001AND
2012-04-101204492-002AND
2012-04-101204492-003AND
2012-04-111204637-001AND
2012-04-111204637-002AND
2013-06-1222498601ND
2013-06-1222498501ND
2013-06-1222499001ND
2013-06-1222498701ND
2013-06-1222498901ND
2013-06-1222498801ND
2013-12-1024244601ND
2013-12-1024244801ND
2013-12-1024244701ND
2013-12-1024244901ND
2013-12-1024244401ND
2013-12-1024244501ND
2015-04-081504828-005AND
2015-04-081504828-004AND
2015-04-081504828-003AND
2015-04-081504828-002AND
2015-04-081504828-001AND