Chromium (total)
Elmsford Village
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | 0.250 ppb | 4 | 1 | ND - 1.000 ppb |
| 2023 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2018-03-20 | AU05646INP | ND |
| 2019-05-03 | AV08922INP | ND |
| 2020-03-09 | AW04779INP | ND |
| 2020-05-12 | AW08771INP | ND |
| 2020-12-08 | AW23394-INP | ND |
| 2020-12-08 | AW23392-INP | ND |
| 2021-03-18 | AX05116-INP | ND |
| 2021-04-14 | AX07011-INP | ND |
| 2021-10-12 | AX20659-INP | ND |
| 2021-10-12 | AX20657-INP | ND |
| 2022-05-17 | AY08347-INP | ND |
| 2022-10-13 | AY18505-INP | ND |
| 2022-10-13 | AY18507-INP | ND |
| 2022-12-21 | AY22628-INP | 1.000 ppb |
| 2023-04-04 | AZ05872-INP | ND |
| 2023-11-28 | AZ21646-INP | ND |
| 2023-11-28 | AZ21644-INP | ND |
| 2023-12-04 | AZ21927-INP | ND |