Chromium (total)
Gettysburg Municipal Authority
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 | 7 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-05-14 | 8013329-01 | ND |
| 2018-05-14 | 8013329-02 | ND |
| 2018-05-14 | 8013329-03 | ND |
| 2018-05-14 | 8013329-04 | ND |
| 2018-06-07 | 8016337-01 | ND |
| 2018-06-07 | 8016337-02 | ND |
| 2018-06-07 | 8016337-03 | ND |
| 2019-03-19 | 9009257-01 | ND |
| 2020-08-24 | 22937022.00 | ND |
| 2021-05-10 | 24574013.00 | ND |
| 2021-05-10 | 24574000.00 | ND |
| 2021-05-10 | 24573987.00 | ND |
| 2021-05-10 | 24573974.00 | ND |
| 2021-05-10 | 24573961.00 | ND |
| 2021-05-10 | 24573948.00 | ND |
| 2021-05-10 | 24573935.00 | ND |
| 2022-06-28 | 26978890.00 | ND |
| 2023-05-23 | 29040729.00 | ND |