1,2,4-Trichlorobenzene
City of Rusk
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 | 5 | 0 | ND |
| 2021 | ND | 4 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-21 | Q1811395006 | ND |
| 2018-03-21 | Q1811395010 | ND |
| 2018-03-21 | Q1811395014 | ND |
| 2018-03-21 | Q1811395001 | ND |
| 2019-10-09 | Q1972207001 | ND |
| 2019-10-09 | Q1972207003 | ND |
| 2019-10-09 | Q1972207005 | ND |
| 2019-10-09 | Q1972207007 | ND |
| 2020-10-01 | Q2038626020 | ND |
| 2020-10-01 | Q2038626022 | ND |
| 2020-10-01 | Q2038626024 | ND |
| 2020-10-01 | Q2038626026 | ND |
| 2020-11-19 | Q2046158001 | ND |
| 2021-11-02 | Q2130691005 | ND |
| 2021-11-02 | Q2130691011 | ND |
| 2021-11-02 | Q2130691009 | ND |
| 2021-11-02 | Q2130691007 | ND |
| 2022-10-24 | Q2231983010 | ND |
| 2022-10-24 | Q2231983012 | ND |
| 2022-10-24 | Q2231983014 | ND |
| 2022-10-24 | Q2231983016 | ND |
| 2023-06-28 | Q2325031005 | ND |
| 2023-06-28 | Q2325031007 | ND |
| 2023-06-28 | Q2325031009 | ND |
| 2023-06-28 | Q2325031011 | ND |
| 2023-09-11 | Q2338755002 | ND |