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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Suez

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

 

114

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.429 ppb5125ND - 3.00 ppb
2015ND60ND
2016ND90ND
20170.556 ppb183ND - 4.00 ppb
20180.533 ppb152ND - 5.00 ppb
20190.200 ppb151ND - 3.00 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
2014-01-27201401280213AMND
2014-01-27201401280197AMND
2014-01-27201401280199AM1.40 ppb
2014-01-27201401280230AMND
2014-04-23201404240197AM0.310 ppb
2014-04-23201404240378AM1.40 ppb
2014-04-23201404240342AM0.520 ppb
2014-04-23201404240561AMND
2014-04-23201404240478AMND
2014-04-23201404240446AMND
2014-04-29201404300473AMND
2014-04-29201404300466AM1.20 ppb
2014-04-29201404300766AM2.10 ppb
2014-04-29201404300470AM1.20 ppb
2014-04-29201404300778AM0.260 ppb
2014-04-29201404300479AM0.490 ppb
2014-04-30201405010475AM0.230 ppb
2014-04-30201405010391AM0.970 ppb
2014-04-30201405010503AMND
2014-04-30201405010429AMND
2014-04-30201405010408AMND
2014-04-30201405010395AM0.440 ppb
2014-06-09I1420772ND
2014-06-10I1421075ND
2014-06-10I14210743.00 ppb
2014-06-17I1422335ND
2014-06-17I1422330ND
2014-07-29201407300198AM2.00 ppb
2014-07-29201407300200AMND
2014-07-29201407300313AMND
2014-07-29201407300233AMND
2014-07-30I1429113ND
2014-07-30I1429112ND
2014-10-06201410070343AM0.780 ppb
2014-10-06201410070289AMND
2014-10-06201410070321AMND
2014-10-06201410070313AM0.710 ppb
2014-10-07201410080388AM0.200 ppb
2014-10-07201410080382AMND
2014-10-07201410080463AMND
2014-10-07201410080467AM0.580 ppb
2014-10-09201410100225AM1.20 ppb
2014-10-09201410100267AM0.290 ppb
2014-10-14201410150227AMND
2014-10-14201410150150AM0.260 ppb
2014-10-14201410150153AM1.40 ppb
2014-10-14201410150249AMND
2014-10-15201410160378AM0.350 ppb
2014-10-15201410160328AM0.200 ppb
2014-10-15201410160296AM0.400 ppb
2014-10-15201410160351AMND
2015-03-09I1508865ND
2015-05-27I1520479ND
2015-06-04I1521779ND
2015-06-16I1523455ND
2015-06-24I1525301ND
2015-07-24I1530230ND
2016-06-23I1627647ND
2016-06-24I1627840ND
2016-06-24I1627839ND
2016-06-27I1628124ND
2016-06-27I1628125ND
2016-06-27I1628127ND
2016-06-28I1628440ND
2016-06-28I1628441ND
2016-06-29I1628657ND
2017-03-13I1709901ND
2017-03-14I1710137ND
2017-03-14I1710137ND
2017-03-14I1710140ND
2017-05-30I1722574ND
2017-05-31I17227533.00 ppb
2017-05-31I1722759ND
2017-05-31I1722763ND
2017-06-19I17261073.00 ppb
2017-06-19I1726109ND
2017-06-21I1726771ND
2017-07-20I1732215ND
2017-07-25I17328114.00 ppb
2017-07-25I1732813ND
2017-08-03I1734567ND
2017-08-03I1734565ND
2017-08-14I1736476ND
2017-08-17I1737329ND
2018-02-05I1804986ND
2018-02-06I1805280ND
2018-02-12I1806151ND
2018-05-15I1821863ND
2018-05-15I1821851ND
2018-06-06I1825583ND
2018-06-06I1825581ND
2018-06-21I1828604ND
2018-06-21I1828603ND
2018-06-21I1828606ND
2018-06-21I1828608ND
2018-06-26I1829342ND
2018-06-26I18293453.00 ppb
2018-06-26I1829341ND
2018-07-02I18305785.00 ppb
2019-02-19I1907388ND
2019-02-19I1907386ND
2019-03-06I1909865ND
2019-03-06I1909868ND
2019-04-17I1917321ND
2019-06-12I1927972ND
2019-06-20I1929654ND
2019-07-03I1932118ND
2019-07-10I19333463.00 ppb
2019-07-10I1933345ND
2019-07-19I1935267ND
2019-07-19I1935266ND
2019-08-28I1942930ND
2019-08-28I1942932ND
2019-09-05I1944523ND