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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Salt Lake City Water System

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.

 

119

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND150ND
20130.516 ppb4927ND - 7.00 ppb
2014ND140ND
2015ND160ND
20160.240 ppb251ND - 6.00 ppb
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
2012-01-25ND
2012-01-25ND
2012-01-26ND
2012-05-25ND
2012-06-01ND
2012-06-01ND
2012-06-01ND
2012-06-05ND
2012-06-05ND
2012-06-29ND
2012-06-29ND
2012-06-29ND
2012-07-13ND
2012-07-17ND
2012-07-17ND
2013-01-18ND
2013-01-25ND
2013-01-25ND
2013-02-120.370 ppb
2013-02-120.360 ppb
2013-02-120.810 ppb
2013-02-12ND
2013-02-120.850 ppb
2013-02-200.210 ppb
2013-05-10ND
2013-05-14ND
2013-05-14ND
2013-05-140.430 ppb
2013-05-14ND
2013-05-14ND
2013-05-157.00 ppb
2013-05-15ND
2013-05-16ND
2013-06-041.40 ppb
2013-06-040.780 ppb
2013-06-18ND
2013-06-18ND
2013-06-18ND
2013-06-25ND
2013-06-28ND
2013-06-28ND
2013-07-30ND
2013-07-30ND
2013-08-130.330 ppb
2013-08-130.830 ppb
2013-08-131.50 ppb
2013-08-13ND
2013-08-131.10 ppb
2013-08-130.820 ppb
2013-08-13ND
2013-08-130.210 ppb
2013-08-130.800 ppb
2013-08-130.820 ppb
2013-08-132.20 ppb
2013-08-131.50 ppb
2013-08-130.660 ppb
2013-08-130.390 ppb
2013-08-130.300 ppb
2013-08-27ND
2013-12-030.220 ppb
2013-12-030.330 ppb
2013-12-040.360 ppb
2013-12-060.440 ppb
2013-12-180.280 ppb
2014-01-10ND
2014-05-23ND
2014-05-30ND
2014-05-30ND
2014-06-03ND
2014-06-11ND
2014-06-25ND
2014-06-25ND
2014-07-01ND
2014-07-01ND
2014-07-02ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2015-01-23ND
2015-01-23ND
2015-01-30ND
2015-01-30ND
2015-02-27ND
2015-05-01ND
2015-05-08ND
2015-05-15ND
2015-06-19ND
2015-06-19ND
2015-06-19ND
2015-06-19ND
2015-07-10ND
2015-07-10ND
2015-07-10ND
2015-07-17ND
2016-01-08ND
2016-01-08ND
2016-01-15ND
2016-02-12ND
2016-02-26ND
2016-03-25ND
2016-05-19ND
2016-05-19ND
2016-06-03ND
2016-06-03ND
2016-06-10ND
2016-06-10ND
2016-06-10ND
2016-06-24ND
2016-06-24ND
2016-06-24ND
2016-06-286.00 ppb
2016-06-28ND
2016-07-08ND
2016-07-08ND
2016-07-13ND
2016-07-29ND
2016-07-29ND
2016-07-29ND
2016-09-08ND