1,2,4-Trichlorobenzene
Pawc Pocono District
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 9 | 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 |
|---|---|---|
| 2018-02-14 | 38535301 | ND |
| 2018-02-14 | 38535401 | ND |
| 2018-02-22 | 38936801 | ND |
| 2019-02-11 | 42849401 | ND |
| 2019-02-11 | 42849501 | ND |
| 2019-02-11 | 42849301 | ND |
| 2020-02-18 | 21688465.00 | ND |
| 2020-02-18 | 21688528.00 | ND |
| 2020-02-18 | 21688444.00 | ND |
| 2020-02-18 | 21688591.00 | ND |
| 2020-02-18 | 21688549.00 | ND |
| 2020-02-18 | 21688507.00 | ND |
| 2020-02-18 | 21688486.00 | ND |
| 2020-02-18 | 21688570.00 | ND |
| 2020-03-10 | 21869677.00 | ND |
| 2021-02-23 | 23909454.00 | ND |
| 2021-02-23 | 23909475.00 | ND |
| 2021-02-23 | 23909433.00 | ND |
| 2022-02-17 | 26138313.00 | ND |
| 2022-02-17 | 26138346.00 | ND |
| 2022-02-17 | 26138291.00 | ND |
| 2023-02-06 | 28370383.00 | ND |
| 2023-02-07 | 28370224.00 | ND |
| 2023-02-07 | 28370320.00 | ND |
| 2023-02-07 | 28370299.00 | ND |
| 2023-02-07 | 28370257.00 | ND |
| 2023-02-07 | 28370341.00 | ND |
| 2023-02-07 | 28370362.00 | ND |
| 2023-02-07 | 28370205.00 | ND |
| 2023-02-07 | 28370278.00 | ND |