Chromium (total)
High Desert Detention Center
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 | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-04-24 | CA3601182_001_001-201804241100 | ND |
| 2018-07-09 | CA3601182_001_001-201807091100 | ND |
| 2021-06-08 | CA3601182_DST_800-202106081215 | ND |
| 2021-09-21 | CA3601182_001_001-202109211132 | ND |
| 2021-12-15 | CA3601182_001_001-202112151142 | ND |
| 2022-03-15 | CA3601182_001_001-202203151207 | ND |
| 2022-05-25 | CA3601182_001_001-202205251008 | ND |
| 2022-07-19 | CA3601182_001_001-202207191233 | ND |
| 2022-12-14 | CA3601182_001_001-202212141113 | ND |