1,2,4-Trichlorobenzene
City Of Glen Rose
NOTE: City Of Glen Rose purchases water from Somervell County Water District - Wheele which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Somervell County Water District - Wheele.
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 5 | 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: City Of Glen Rose purchases water from Somervell County Water District - Wheele which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Somervell County Water District - Wheele.
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-26 | Q1817130006 | ND |
| 2019-02-13 | Q1906633002 | ND |
| 2020-11-03 | Q2042995003 | ND |
| 2021-06-01 | Q2114024004 | ND |
| 2022-02-22 | Q2206240008 | ND |
| 2023-10-11 | Q2343452001 | ND |