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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

California American Water Company - Coronado

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for chromium (total). Sample information shown below was taken by City of San Diego.

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.

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
20130.138 ppb84ND - 0.400 ppb
20140.300 ppb880.200 ppb - 0.400 ppb
2015ND120ND
2016ND110ND
2017ND120ND

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

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for chromium (total). Sample information shown below was taken by City of San Diego.

Date Lab ID Result
2012-02-069437-001-0000ND
2012-02-069437-006-0000ND
2012-02-069437-010-0000ND
2012-05-079437-006-0000ND
2012-05-079437-001-0000ND
2012-05-079437-010-0000ND
2012-08-069437-001-0000ND
2012-08-079437-010-0000ND
2012-08-079437-006-0000ND
2012-11-289437-010-0000ND
2013-02-049437-001-0000ND
2013-02-049437-010-0000ND
2013-05-069437-010-0000ND
2013-05-069437-001-0000ND
2013-05-299437-006-0000ND
2013-08-059437-006-0000ND
2013-08-059437-001-0000ND
2013-08-059437-010-0000ND
2013-08-191308684-001AND
2013-08-191308683-001AND
2013-08-201308735-001AND
2013-08-201308736-001AND
2013-08-211308768-001A0.210 ppb
2013-08-211308767-001AND
2013-11-049437-010-0000ND
2013-11-049437-001-0000ND
2013-11-049437-006-0000ND
2013-11-121311404-001AND
2013-11-121311405-001AND
2013-11-121311402-001AND
2013-11-121311403-001AND
2013-11-131311448-001AND
2013-11-131311446-001AND
2014-02-039437-001-0000ND
2014-02-039437-010-0000ND
2014-02-039437-006-0000ND
2014-02-101402420-001AND
2014-02-101402419-001AND
2014-02-101402418-001A0.310 ppb
2014-02-101402421-001AND
2014-02-111402513-001AND
2014-02-111402514-001AND
2014-05-059437-010-0000ND
2014-05-059437-006-0000ND
2014-05-059437-001-0000ND
2014-05-121405469-001AND
2014-05-121405468-001AND
2014-05-121405512-001AND
2014-05-121405511-001AND
2014-05-131405606-001AND
2014-05-131405607-001AND
2014-08-049437-006-0000ND
2014-08-049437-001-0000ND
2014-08-049437-010-0000ND
2014-11-039437-010-0000ND
2014-11-039437-001-0000ND
2014-11-039437-006-0000ND
2015-02-029437-006-0000ND
2015-02-029437-010-0000ND
2015-02-029437-001-0000ND
2015-05-049437-001-0000ND
2015-05-049437-006-0000ND
2015-05-049437-010-0000ND
2015-08-039437-001-0000ND
2015-08-039437-010-0000ND
2015-08-039437-006-0000ND
2015-11-029437-006-0000ND
2015-11-029437-010-0000ND
2015-11-029437-001-0000ND
2016-02-019437-010-0000ND
2016-02-019437-001-0000ND
2016-02-019437-006-0000ND
2016-05-029437-010-0000ND
2016-05-029437-001-0000ND
2016-08-019437-001-0000ND
2016-08-019437-010-0000ND
2016-08-019437-006-0000ND
2016-11-079437-006-0000ND
2016-11-079437-001-0000ND
2016-11-079437-010-0000ND
2017-02-069437-001-0000ND
2017-02-069437-006-0000ND
2017-02-229437-010-0000ND
2017-05-019437-010-0000ND
2017-05-019437-001-0000ND
2017-06-059437-006-0000ND
2017-08-079437-001-0000ND
2017-08-079437-010-0000ND
2017-08-079437-006-0000ND
2017-11-069437-001-0000ND
2017-11-069437-010-0000ND
2017-11-069437-006-0000ND