Know Your Environment. Protect Your Health.

Chromium (total)

Valencia Water Company Town Division

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201821.5 ppb3320.8 ppb - 22.3 ppb
2019N/A00N/A
2020N/A00N/A
202122.3 ppb4420.0 ppb - 24.0 ppb
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-09572883-00120.8 ppb
2018-01-09572883-00222.3 ppb
2018-01-09572883-00321.3 ppb
2021-01-0621A0636-0122.0 ppb
2021-01-0621A0639-0120.0 ppb
2021-01-0621A0642-0124.0 ppb
2021-01-1121A1007-0123.0 ppb