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EWG's Tap Water Database

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Chromium (total)

Columbus

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
2010ND10ND
2011ND10ND
2012ND30ND
2013ND10ND
20140.0556 ppb92ND - 0.260 ppb
2015ND20ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)100 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-03-09AG84277ND
2011-03-24AH26109ND
2012-05-07AH58334ND
2012-10-22AH82402ND
2012-12-03AH85003ND
2013-07-08AI05834ND
2014-02-04201402050222AMND
2014-02-04201402050226AMND
2014-02-26AI28736ND
2014-05-06201405080358AMND
2014-05-06201405080339AMND
2014-08-18201408190129AMND
2014-08-18201408190494AMND
2014-11-11201411120138AM0.260 ppb
2014-11-11201411120140AM0.240 ppb
2015-01-27AI63479ND
2015-11-10AJ00827ND