Know Your Environment. Protect Your Health.

Chromium (total)

Mount Kisco Water Department

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND60ND
2021ND60ND
20222.33 ppb62ND - 7.00 ppb
2023ND60ND

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
2018-06-28420-138864-1-INPND
2018-06-28420-138864-2-INPND
2019-10-24420-162378-2-INPND
2019-10-24420-162378-1-INPND
2020-04-23AW07616-INPND
2020-04-23AW07618-INPND
2020-04-23AW07614-INPND
2020-08-28420-179605-2-INPND
2020-08-28420-179605-1-INPND
2020-10-05AW19196-INPND
2021-02-17AX03237-INPND
2021-06-22420-200400-1-INPND
2021-06-22420-200400-2-INPND
2021-08-03AX15582-INPND
2021-08-03AX15584-INPND
2021-08-03AX15580-INPND
2022-03-10AY04233-INPND
2022-06-16420-226818-2-INP7.00 ppb
2022-06-16420-226818-1-INP7.00 ppb
2022-09-13AY16358-INPND
2022-09-13AY16360-INPND
2022-09-13AY16356-INPND
2023-01-24AZ01477-INPND
2023-05-10AZ08475-INPND
2023-05-10AZ08476-INPND
2023-08-16AZ15166-INPND
2023-08-16AZ15162-INPND
2023-08-16AZ15164-INPND