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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Palm Beach County Water Utilities

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20131.10 ppb42ND - 2.60 ppb
20140.523 ppb129ND - 2.00 ppb
20150.264 ppb128ND - 0.600 ppb
2016ND40ND
20170.550 ppb41ND - 2.20 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 Result
2012-05-07ND
2012-05-09ND
2012-05-10ND
2012-05-14ND
2013-05-13ND
2013-05-161.80 ppb
2013-05-202.60 ppb
2013-05-22ND
2014-05-15ND
2014-05-20ND
2014-05-222.00 ppb
2014-05-29ND
2014-09-230.550 ppb
2014-09-230.300 ppb
2014-09-230.610 ppb
2014-09-230.480 ppb
2014-09-230.210 ppb
2014-09-230.300 ppb
2014-09-230.860 ppb
2014-09-230.960 ppb
2015-03-160.400 ppb
2015-03-160.200 ppb
2015-03-160.560 ppb
2015-03-160.600 ppb
2015-03-160.230 ppb
2015-03-160.560 ppb
2015-03-160.390 ppb
2015-03-160.230 ppb
2015-06-16ND
2015-06-16ND
2015-06-17ND
2015-06-22ND
2016-05-04ND
2016-05-11ND
2016-05-17ND
2016-05-24ND
2017-05-03ND
2017-05-10ND
2017-05-172.20 ppb
2017-05-30ND