1,2,4-Trichlorobenzene
Fridley
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 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 |
|---|---|---|
| 2018-11-28 | 18K1046-02 | ND |
| 2020-01-27 | 20A1007-01 | ND |
| 2020-06-16 | 20F1254-01 | ND |
| 2020-09-01 | 20I0064-01 | ND |
| 2021-11-23 | 21K1264-01 | ND |
| 2021-11-23 | 21K1267-03 | ND |
| 2022-01-31 | 22A1136-01 | ND |
| 2022-03-03 | 22C0143-01 | ND |
| 2022-04-15 | 22D0801-01 | ND |
| 2023-06-01 | 23F0145-01 | ND |
| 2023-06-01 | 23F0145-02 | ND |
| 2023-08-17 | 23H2067-01 | ND |