1,2,4-Trichlorobenzene
Elkins City Of
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
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 | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against hormone disruption.
EPA Maximum Contaminant
Level (MCL): 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-25 | 286783-2018-DW | ND |
| 2018-08-23 | 292675-2018-DW | ND |
| 2018-11-08 | 296696-2018-DW | ND |
| 2019-02-22 | 301352-2019-DW | ND |
| 2019-06-21 | 307737-2019-DW | ND |
| 2019-08-28 | 311397-2019-DW | ND |
| 2019-11-06 | 315505-2019-DW | ND |
| 2020-02-12 | 320295-2020-DW | ND |
| 2020-02-12 | 320295-2020-DW | ND |
| 2020-05-13 | 324855-2020-DW | ND |
| 2020-10-21 | 334311-2020-DW | ND |
| 2022-01-24 | 810-13292-1 | ND |
| 2022-10-26 | 2105258-01 | ND |
| 2023-11-02 | 3112764-02 | ND |