Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chromium (total)

City of Newport Beach

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20130.0286 ppb71ND - 0.200 ppb
20140.1000 ppb51ND - 0.500 ppb
2015ND60ND
2016ND30ND
2017ND40ND

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
2012-02-234417-004-0800ND
2012-03-274417-005-0850ND
2012-05-174417-002-0830ND
2012-05-244417-003-0900ND
2013-03-043010023803ND
2013-03-1830100239910.200 ppb
2013-06-103010023803-2ND
2013-06-113010023991-2ND
2013-09-033010023803-3ND
2013-09-043010023991-3ND
2013-12-103010023991-4ND
2014-01-073010023992-1ND
2014-01-073010023802-1ND
2014-02-053010023803-4A0.500 ppb
2014-06-103010023802-2ND
2014-06-103010023992-2ND
2015-03-024417-005-0835ND
2015-03-024417-004-0815ND
2015-05-044417-003-1115ND
2015-05-044417-002-1050ND
2015-12-144417-005-0810ND
2015-12-144417-005-0755ND
2016-02-294417-003-0850ND
2016-02-294417-005-0820ND
2016-05-094417-003-0905ND
2017-02-094417-004-0950ND
2017-05-034417-003-1220ND
2017-05-034417-005-1145ND
2017-05-034417-002-1235ND