1,2,4-Trichlorobenzene
Eugene Water & Electric Board
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 | 7 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-02-06 | 180223101B-V | ND |
| 2018-05-09 | 180543001B-V | ND |
| 2018-08-15 | 180873902A-V | ND |
| 2018-11-07 | 201811080534-V | ND |
| 2019-02-04 | 201902050084-V | ND |
| 2019-05-13 | 201905140039-V | ND |
| 2019-08-05 | 201908060215-V | ND |
| 2019-11-04 | 201911051086-V | ND |
| 2020-02-03 | 202002040124-V | ND |
| 2020-08-03 | 202008040087-V | ND |
| 2020-09-10 | 202009110103-V | ND |
| 2020-09-14 | 202009150221-V | ND |
| 2020-09-21 | 202009220096-V | ND |
| 2020-11-03 | 202011040128-V | ND |
| 2020-11-16 | 202011170113-V | ND |
| 2021-02-02 | 202102030239-V | ND |
| 2021-05-10 | 202105110438-V | ND |
| 2021-08-02 | 202108030522-V | ND |
| 2021-11-01 | 202111020067-V | ND |
| 2022-02-02 | 202202040410-V | ND |
| 2022-08-01 | 22080056-01B-V | ND |
| 2022-11-07 | 22110349-01C-V | ND |
| 2023-02-06 | 23020244-01B-V | ND |
| 2023-05-08 | 23050406-01B-V | ND |
| 2023-08-01 | 380-57291-1-V | ND |
| 2023-11-06 | 380-69947-1-V | ND |