Chromium (total)
Beauregard Water Works District #3
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 | 22 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 11 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 11 | 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 |
|---|---|---|
| 2018-02-27 | AE20777 | ND |
| 2018-02-27 | AE20777 | ND |
| 2018-03-19 | AE21166 | ND |
| 2018-03-19 | AE21163 | ND |
| 2018-03-19 | AE21154 | ND |
| 2018-03-19 | AE21157 | ND |
| 2018-03-19 | AE21160 | ND |
| 2018-03-19 | AE21163 | ND |
| 2018-03-19 | AE21166 | ND |
| 2018-03-19 | AE21160 | ND |
| 2018-03-19 | AE21157 | ND |
| 2018-03-19 | AE21154 | ND |
| 2018-04-16 | AE21403 | ND |
| 2018-04-16 | AE21400 | ND |
| 2018-04-16 | AE21412 | ND |
| 2018-04-16 | AE21406 | ND |
| 2018-04-16 | AE21403 | ND |
| 2018-04-16 | AE21400 | ND |
| 2018-04-16 | AE21412 | ND |
| 2018-04-16 | AE21409 | ND |
| 2018-04-16 | AE21406 | ND |
| 2018-04-16 | AE21409 | ND |
| 2021-02-02 | B2100535-003 | ND |
| 2021-02-02 | B2100535-002 | ND |
| 2021-02-02 | B2100535-001 | ND |
| 2021-02-02 | B2100535-004 | ND |
| 2021-03-16 | B2101237-002 | ND |
| 2021-03-16 | B2101237-003 | ND |
| 2021-03-16 | B2101237-004 | ND |
| 2021-03-16 | B2101237-005 | ND |
| 2021-03-16 | B2101237-001 | ND |
| 2021-04-27 | B2101879-001 | ND |
| 2021-04-27 | B2101879-002 | ND |
| 2023-07-24 | B2302949-001 | ND |
| 2023-07-24 | B2302949-002 | ND |
| 2023-07-24 | B2302949-003 | ND |
| 2023-07-24 | B2302949-004 | ND |
| 2023-07-24 | B2302949-005 | ND |
| 2023-08-07 | B2303189-001 | ND |
| 2023-08-07 | B2303189-002 | ND |
| 2023-08-07 | B2303189-003 | ND |
| 2023-08-07 | B2303189-004 | ND |
| 2023-08-07 | B2303189-005 | ND |
| 2023-08-07 | B2303189-006 | ND |