1,2,4-Trichlorobenzene
Briarcliff Manor Village
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 | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2018-09-24 | AU20760-POCS | ND |
| 2019-11-13 | AV23866-POCS | ND |
| 2020-02-04 | AW02346POCS | ND |
| 2020-07-28 | AW14390-POCS | ND |
| 2020-07-28 | AW14392-POCS | ND |
| 2020-11-23 | AW21634-POCS | ND |
| 2021-02-03 | AX02231-POCS | ND |
| 2021-08-17 | AX16690-POCS | ND |
| 2021-08-17 | AX16692-POCS | ND |
| 2021-09-20 | AX19184-POCS-BRI | ND |
| 2021-09-20 | AX19180-POCS-BRI | ND |
| 2022-08-02 | AY13527-POCS | ND |
| 2022-08-02 | AY13529-POCS | ND |
| 2022-10-24 | AY19130-POCS-BRI | ND |
| 2022-10-28 | AY19476-POCS-BRI | ND |
| 2023-08-30 | AZ16072-POCS | ND |
| 2023-08-30 | AZ16070-POCS | ND |
| 2023-10-19 | AZ19385-POCS-BRI | ND |
| 2023-10-19 | AZ19384-POCS-BRI | ND |