Know Your Environment. Protect Your Health.

Chromium (total)

Leagueville Water Supply Corporation

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.

 

5

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
20190.650 ppb21ND - 1.30 ppb
2020ND10ND
2021N/A00N/A
20222.40 ppb112.40 ppb
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
2019-07-15AE74300ND
2019-07-15Q19447730031.30 ppb
2020-07-08Q2026823009ND
2022-07-19Q22206840032.40 ppb
2023-06-22Q2324029008ND