Chromium (total)
Newellton Water System
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 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-01-08 | 35367824001 | ND |
| 2018-01-08 | 35367824001 | ND |
| 2019-01-14 | 35442603002 | ND |
| 2019-01-14 | 35442603002 | ND |
| 2020-01-06 | B2000115-001 | ND |
| 2021-01-18 | B2100155-001 | ND |
| 2021-02-08 | B2100544-001 | ND |
| 2021-05-25 | B2102462-001 | ND |
| 2022-01-18 | B2200300-001 | ND |
| 2022-04-11 | B2201825-001 | ND |
| 2022-12-07 | B2205823-001 | ND |
| 2023-01-10 | B2300176-001 | ND |
| 2023-02-06 | B2300558-001 | ND |
| 2023-11-07 | B2304935-001 | ND |