Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chromium (total)

City of San Benito

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND120ND
2014ND70ND
2015ND10ND
2016ND10ND
2017ND10ND

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
2013-05-063E08037-02AND
2013-05-063E08037-03AND
2013-05-063E08037-01AND
2013-05-063E08037-04AND
2013-08-193H21033-07AND
2013-08-193H21033-05AND
2013-08-193H21033-01AND
2013-08-193H21033-03AND
2013-10-22AC32818ND
2013-11-183K19024-07AND
2013-11-183K19024-05AND
2013-11-183K19024-03AND
2014-01-064A07012-01AND
2014-03-034C04096-03AND
2014-03-034C04096-07AND
2014-03-034C04096-05AND
2014-03-034C04096-01AND
2014-03-05AC45630ND
2014-06-03AC55771ND
2015-03-18AC84943ND
2016-03-08AD27499ND
2017-03-15AD75110ND