1,2,4-Trichlorobenzene
Plumstead Township Summer Hill Mead
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 | 3 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-04-13 | 8009708-01 | ND |
| 2019-06-27 | 9021152-01 | ND |
| 2019-08-16 | 9027726-01 | ND |
| 2019-10-11 | 9034969-01 | ND |
| 2020-01-17 | 21491339.00 | ND |
| 2020-02-24 | 21655453.00 | ND |
| 2021-05-21 | 24626297.00 | ND |
| 2021-05-21 | 24425561.00 | ND |
| 2021-07-16 | 24816622.00 | ND |
| 2021-10-13 | 25392663.00 | ND |
| 2022-01-14 | 25930584.00 | ND |
| 2022-01-14 | 25930563.00 | ND |
| 2022-04-08 | 26451653.00 | ND |
| 2023-01-13 | 28161032.00 | ND |
| 2023-01-13 | 28161053.00 | ND |
| 2023-04-27 | 28689284.00 | ND |