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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Emporia

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
20140.0222 ppb91ND - 0.200 ppb
20151.50 ppb111.50 ppb
2016ND10ND
2017ND10ND

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
2012-04-30578189WSND
2013-04-24595101WSND
2014-02-282984514ND
2014-02-282984523ND
2014-04-22100811ND
2014-05-2230324640.200 ppb
2014-05-223032456ND
2014-08-283094156ND
2014-08-283094127ND
2014-11-193142666ND
2014-11-193142662ND
2015-05-213358281.50 ppb
2016-04-19529774ND
2017-04-24746455ND