Know Your Environment. Protect Your Health.

Chromium (total)

Denair Community Services 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND20ND
2021ND20ND
2022N/A00N/A
2023ND20ND

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
2018-06-05CA5010021_009_009-201806051037ND
2018-08-15CA5010021_010_010-201808150905ND
2020-03-03CA5010021_008_008-202003030901ND
2020-05-13CA5010021_007_007-202005131316ND
2021-06-22CA5010021_009_009-202106221205ND
2021-08-18CA5010021_010_010-20210818NULND
2023-03-15CA5010021_008_008-202303150908ND
2023-05-11CA5010021_007_007-202305110925ND