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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Hope Water Light Comm.

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.

MORE ABOUT THIS CONTAMINANT

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
20150.0487 ppb153ND - 0.260 ppb
2016ND80ND
2017ND10ND
2018ND10ND
20190.156 ppb91ND - 1.40 ppb

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
2014-10-29Y143030005ND
2015-03-11Y1507100370.260 ppb
2015-03-11Y150710041ND
2015-03-11Y150710040ND
2015-03-11Y1507100420.210 ppb
2015-03-11Y150710038ND
2015-03-11Y150710039ND
2015-06-10Y1516200140.260 ppb
2015-06-10Y151620015ND
2015-09-09Y152530012ND
2015-09-09Y152530014ND
2015-09-09Y152530015ND
2015-09-09Y152530016ND
2015-09-09Y152530017ND
2015-09-09Y152530013ND
2015-10-05Y152820006ND
2016-07-20Y162030006ND
2016-07-20Y162030007ND
2016-07-20Y162030008ND
2016-07-20Y162030009ND
2016-07-20Y162030010ND
2016-07-20Y162030004ND
2016-07-20Y162030005ND
2016-10-05Y162800009ND
2017-10-03Y172780003ND
2018-10-03Y182770002ND
2019-08-05Y192200003ND
2019-08-05Y192200006ND
2019-08-05Y192200005ND
2019-08-05Y192200004ND
2019-08-05Y1922000011.40 ppb
2019-08-05Y192200007ND
2019-08-05Y192200002ND
2019-10-16Y192900002ND
2019-11-18Y193250108ND