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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

South Coast Water District - Capistrano 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
20140.272 ppb148ND - 1.20 ppb
2015N/A00N/A
2016N/A00N/A
2017ND20ND

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
2012-08-291805-007-1047ND
2012-08-291805-010-1045ND
2013-10-021805-007-1524ND
2013-10-021805-010-1522ND
2014-02-12201402120885AM1.20 ppb
2014-02-12201402120889AM1.10 ppb
2014-02-12201402120905AMND
2014-02-12201402120903AMND
2014-05-14201405150281AMND
2014-05-21201405210523AMND
2014-08-12201408120507AM0.250 ppb
2014-08-12201408120367AM0.210 ppb
2014-08-12201408120363AM0.220 ppb
2014-08-12201408120504AM0.320 ppb
2014-09-021805-010-1422ND
2014-09-021805-007-1426ND
2014-11-06201411070510AM0.250 ppb
2014-11-06201411070522AM0.260 ppb
2017-08-081805-010-1136ND
2017-08-081805-007-1139ND