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EWG's Tap Water Database

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Chromium (total)

City of Flint

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND20ND
2013ND20ND
20140.0556 ppb91ND - 0.500 ppb
2015N/A00N/A

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
2010-11-05LLD59541ND
2011-12-02LLE11088ND
2012-05-03LLE26411ND
2012-07-29LLE35013ND
2013-01-18LLE61821ND
2013-07-18LLE83917ND
2014-01-232962376ND
2014-01-232962381ND
2014-04-233014295ND
2014-04-233014312ND
2014-05-22LLF19430ND
2014-07-283072704ND
2014-08-06LLF31222ND
2014-10-2731300000.500 ppb
2014-10-28LLF44687ND