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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Federal Heights

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.

 

12

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
2013ND10ND
20140.474 ppb87ND - 0.850 ppb
20150.355 ppb220.340 ppb - 0.370 ppb
2016ND10ND
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 Result
2013-06-20ND
2014-06-18ND
2014-06-180.370 ppb
2014-06-180.360 ppb
2014-08-260.730 ppb
2014-09-250.850 ppb
2014-11-190.640 ppb
2014-11-190.560 ppb
2014-11-190.280 ppb
2015-02-240.370 ppb
2015-02-240.340 ppb
2016-03-15ND