1,2,4-Trichlorobenzene
Abbotsford Waterworks
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 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 |
|---|---|---|
| 2018-01-09 | 1036349 | ND |
| 2018-01-09 | 1036352 | ND |
| 2019-01-15 | 1101346 | ND |
| 2019-01-15 | 1101343 | ND |
| 2021-01-12 | 1235673 | ND |
| 2021-01-12 | 1235676 | ND |
| 2022-04-20 | 1309013 | ND |
| 2022-04-20 | 1309016 | ND |
| 2023-01-18 | CB00580-05 | ND |
| 2023-01-18 | CB00580-10 | ND |
| 2023-01-18 | CB00580-13 | ND |