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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Waukesha Water Utility

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND150ND
2015ND40ND
2016N/A00N/A
2017ND70ND

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
2014-03-26776756ND
2014-03-26776754ND
2014-05-07784420ND
2014-05-07784423ND
2014-05-07784426ND
2014-06-11796101ND
2014-06-11796104ND
2014-09-08816380-12319ND
2014-09-08816376-12319ND
2014-09-08816378-12319ND
2014-09-08816374-12319ND
2014-09-09816776-12361ND
2014-09-09816774-12361ND
2014-09-09816778-12361ND
2014-09-23820801-12514ND
2015-03-10847850ND
2015-03-10847852ND
2015-03-11847854ND
2015-09-29886381ND
2017-03-28980085ND
2017-03-28980082ND
2017-03-28980079ND
2017-05-02986365ND
2017-05-02986362ND
2017-05-31994541ND
2017-05-31994538ND