Know Your Environment. Protect Your Health.

Chromium (total)

City of Blythe

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND20ND
2021N/A00N/A
2022ND30ND
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
2019-11-20CA3310003_030_030-201911201315ND
2019-11-20CA3310003_031_031-201911201400ND
2019-12-17CA3310003_010_010-201912171330ND
2020-12-28CA3310003_015_015-202012280630ND
2020-12-28CA3310003_006_006-202012280600ND
2022-11-02CA3310003_031_031-202211020730ND
2022-11-02CA3310003_030_030-202211020700ND
2022-12-21CA3310003_010_010-202212210930ND
2023-12-19CA3310003_006_006-202312190800ND
2023-12-19CA3310003_015_015-202312190700ND