1,2,4-Trichlorobenzene
Harleton Water Supply Corporation
NOTE: Harleton Water Supply Corporation purchases water from Northeast Texas Municipal Water District which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Northeast Texas Municipal Water 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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 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
NOTE: Harleton Water Supply Corporation purchases water from Northeast Texas Municipal Water District which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Northeast Texas Municipal Water District.
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-20 | Q1837729001 | ND |
| 2019-08-14 | Q1954876001 | ND |
| 2020-04-23 | Q2016185003 | ND |
| 2020-08-18 | Q2032884003 | ND |
| 2021-02-09 | Q2103854003 | ND |
| 2022-03-01 | Q2206887005 | ND |
| 2023-01-18 | Q2302651002 | ND |