1,2,4-Trichlorobenzene
Watseka
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2020-01-28 | 0014982-01 | ND |
| 2020-01-28 | 0014982-02 | ND |
| 2020-10-29 | 0105534-01 | ND |
| 2021-03-03 | EC00772-01 | ND |
| 2021-05-12 | EE02329-01 | ND |
| 2021-07-07 | EG01127-01 | ND |
| 2021-11-10 | EK02421-01 | ND |
| 2021-12-08 | EL01853-01 | ND |
| 2022-01-05 | 22A0132-02 | ND |
| 2022-01-12 | 22A0274-02 | ND |
| 2022-01-12 | 22A0272-02 | ND |
| 2022-05-04 | FE00793-01 | ND |
| 2022-05-04 | FE00793-02 | ND |
| 2022-08-17 | FH03848-01 | ND |
| 2022-08-17 | FH03848-07 | ND |
| 2022-11-02 | FK00562-02 | ND |
| 2022-11-02 | FK00562-01 | ND |
| 2023-04-18 | GD03221-01 | ND |
| 2023-04-18 | GD03221-02 | ND |
| 2023-05-03 | GE01334-01 | ND |
| 2023-05-03 | GE01334-02 | ND |