1,2,4-Trichlorobenzene
City of Gilmer
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 | 3 | 0 | ND |
| 2021 | ND | 3 | 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 |
|---|---|---|
| 2018-08-30 | Q1834899003 | ND |
| 2018-08-30 | Q1834899006 | ND |
| 2018-08-30 | Q1834899002 | ND |
| 2019-10-10 | Q1972218001 | ND |
| 2019-10-10 | Q1972218003 | ND |
| 2019-10-10 | Q1972218005 | ND |
| 2020-08-24 | Q2033825020 | ND |
| 2020-08-24 | Q2033825022 | ND |
| 2020-08-24 | Q2033825024 | ND |
| 2021-04-01 | Q2108379004 | ND |
| 2021-04-01 | Q2108379008 | ND |
| 2021-04-01 | Q2108379006 | ND |
| 2022-06-14 | Q2216508001 | ND |
| 2022-10-24 | Q2231975002 | ND |
| 2022-10-24 | Q2231975004 | ND |
| 2023-06-15 | Q2322781013 | ND |
| 2023-06-15 | Q2322781015 | ND |
| 2023-06-15 | Q2322781017 | ND |