1,2,4-Trichlorobenzene
Aquarion Water Company of Connecticut - Mystic
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 | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-05-07 | 201806155-VOC1 | ND |
| 2019-05-07 | 201906220-VOC1 | ND |
| 2019-10-28 | 201917770-VOC1 | ND |
| 2020-05-04 | 202006226-VOC1 | ND |
| 2020-10-19 | 202017023-VOC1 | ND |
| 2021-05-03 | 202106129-VOC1 | ND |
| 2021-05-03 | 202106135-VOC1 | ND |
| 2022-05-02 | 202206699-VOC1 | ND |
| 2022-08-29 | 202215061-VOC1 | ND |
| 2023-05-01 | 202306890-VOC1 | ND |
| 2023-06-20 | 202310453-VOC1 | ND |