Know Your Environment. Protect Your Health.

Chromium (total)

Csa 70-f Morongo

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
2018N/A00N/A
2019ND30ND
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023ND10ND

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
2019-06-10CA3600226_002_002-201906101100ND
2019-06-10CA3600226_001_001-201906101045ND
2019-06-10CA3600226_003_003-201906101030ND
2022-06-29CA3600226_002_002-202206290855ND
2022-06-29CA3600226_003_003-202206290915ND
2022-12-21CA3600226_001_001-202212210910ND
2023-01-30CA3600226_001_001-202301301330ND