1,2,4-Trichlorobenzene
NJ Water Supply Authority Manasquan
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 | 6 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-03-27 | 380327079 | ND |
| 2018-03-27 | 380327077 | ND |
| 2018-03-27 | 380327078 | ND |
| 2018-09-04 | 380904735 | ND |
| 2018-09-04 | 380904737 | ND |
| 2018-09-04 | 380904736 | ND |
| 2019-03-26 | 390326704 | ND |
| 2019-09-10 | 390910713 | ND |
| 2019-09-11 | 390912720 | ND |
| 2020-03-17 | 3093847001 | ND |
| 2020-09-17 | 200917023-02 | ND |
| 2021-03-09 | 210309060-02 | ND |
| 2023-03-28 | 230328034-01 | ND |