1,2,4-Trichlorobenzene
Amber Acres
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 | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-07-19 | 7232-071918-E02V | ND |
| 2018-07-24 | 7232-072418-E01V | ND |
| 2018-07-24 | 7232-072418-E02V | ND |
| 2018-10-23 | 7232-102318-E01V | ND |
| 2019-05-07 | CC02733-01RE1 | ND |
| 2019-07-02 | CC09096-01 | ND |
| 2019-10-15 | CC14979-01 | ND |
| 2020-01-16 | CC19426-01 | ND |
| 2021-02-23 | CD20384-01 | ND |
| 2021-08-19 | CE08728-01 | ND |
| 2022-02-15 | CE17575-01 | ND |
| 2023-02-13 | 752-2931-1 | ND |