1,2,4-Trichlorobenzene
Bgwc Pollys Circle (sc4660073)
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 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-03-07 | AE26870 | ND |
| 2019-05-06 | AE29806 | ND |
| 2019-08-06 | AE34771 | ND |
| 2019-10-16 | AE38827 | ND |
| 2020-03-12 | AE46095 | ND |
| 2020-05-27 | AE49081 | ND |
| 2020-07-22 | AE51791 | ND |
| 2020-10-21 | AE56196 | ND |
| 2021-03-11 | AE62652 | ND |
| 2021-05-26 | AE66574 | ND |
| 2021-07-21 | AE69237 | ND |
| 2021-07-21 | AE69238 | ND |
| 2021-10-20 | AE73729 | ND |
| 2022-02-23 | AE79543 | ND |
| 2022-04-20 | AE82475 | ND |
| 2022-08-23 | AE88766 | ND |