1,2,4-Trichlorobenzene
Jefferson Parish
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 | 6 | 0 | ND |
| 2019 | ND | 12 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 6 | 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 |
|---|---|---|
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451094001 | ND |
| 2019-02-27 | 35451094001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-09-05 | 35495383002 | ND |
| 2019-09-05 | 35495383002 | ND |
| 2019-09-05 | 35495383001 | ND |
| 2019-09-05 | 35495383003 | ND |
| 2019-09-05 | 35495383001 | ND |
| 2019-09-05 | 35495383003 | ND |
| 2020-03-26 | 35540013001 | ND |
| 2020-03-26 | 35540015001 | ND |
| 2020-03-26 | 35540021001 | ND |
| 2021-01-28 | 35608086001 | ND |
| 2021-01-28 | 35608082001 | ND |
| 2021-01-28 | 35608080001 | ND |
| 2021-03-10 | 35618309001 | ND |
| 2021-03-10 | 35618308001 | ND |
| 2021-03-10 | 35618306001 | ND |
| 2022-01-25 | 35692989001 | ND |
| 2022-01-25 | 35692990001 | ND |
| 2022-01-25 | 35692991001 | ND |
| 2023-01-11 | 35772258001 | ND |
| 2023-01-11 | 35772259001 | ND |
| 2023-01-11 | 35772260001 | ND |