Know Your Environment. Protect Your Health.

Chromium (total)

Westchester County WD #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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND20ND
2021ND20ND
2022ND20ND
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
2018-05-117051461001 INPND
2019-05-317091711001 INPND
2020-05-0870130562 INPND
2020-11-12AW21843-INPND
2021-06-0470175718001-INPND
2021-07-27AX14931-INPND
2022-05-1370214739001-INPND
2022-09-21AY17010-INPND
2023-05-0570255449001-INPND
2023-07-27AZ13680-INPND