Know Your Environment. Protect Your Health.

Chromium (total)

West Baton Rouge Water Works District 2

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.

 

12

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
2019ND40ND
2020ND20ND
2021ND30ND
2022ND20ND
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
2019-06-18B1902548-001ND
2019-06-18B1902548-001ND
2019-10-08B1904494-001ND
2019-10-08B1904494-001ND
2020-01-15B2000168-001ND
2020-11-10B2005996-001ND
2021-02-04B2100489-001ND
2021-05-18B2102268-001ND
2021-09-20B2104674-001ND
2022-06-21B2202887-001ND
2022-10-17B2205085-001ND
2023-01-10B2300124-001ND