Know Your Environment. Protect Your Health.

Chromium (total)

Malaga County Water District

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.30 ppb333.10 ppb - 4.90 ppb
2019N/A00N/A
2020N/A00N/A
20214.17 ppb333.40 ppb - 4.60 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
2018-09-17CA1010042_006_006-2018091713504.90 ppb
2018-09-17CA1010042_007_007-2018091713304.90 ppb
2018-09-17CA1010042_012_012-2018091714103.10 ppb
2021-08-16CA1010042_007_007-2021081612273.40 ppb
2021-08-16CA1010042_012_012-2021081612584.60 ppb
2021-08-16CA1010042_006_006-2021081612444.50 ppb