Chromium (total)
Veolia - Mechanicsburg Pennsylvania
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 | 1.45 ppb | 2 | 1 | ND - 2.90 ppb |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 2.60 ppb | 1 | 1 | 2.60 ppb |
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 |
|---|---|---|
| 2018-02-23 | 2297488001 | ND |
| 2018-02-23 | 2297488002 | 2.90 ppb |
| 2019-01-15 | H9A0708-01 | ND |
| 2020-02-05 | 21790413.00 | ND |
| 2021-01-19 | 23836172.00 | ND |
| 2021-01-19 | 23836116.00 | ND |
| 2022-02-10 | 26237337.00 | ND |
| 2023-02-13 | 28470018.00 | 2.60 ppb |