1,2,4-Trichlorobenzene
Edina
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 | 12 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 9 | 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 |
|---|---|---|
| 2018-03-14 | 18C0569-01 | ND |
| 2018-06-20 | 18F1383-01 | ND |
| 2018-08-01 | 18H0091-01 | ND |
| 2018-08-01 | 18H0091-02 | ND |
| 2019-03-28 | 19C1245-01 | ND |
| 2019-05-29 | 19E2109-01 | ND |
| 2019-08-05 | 19H0333-03 | ND |
| 2019-08-05 | 19H0333-04 | ND |
| 2019-08-05 | 19H0333-02 | ND |
| 2019-08-05 | 19H0333-01 | ND |
| 2019-08-05 | 19H0330-02 | ND |
| 2019-08-05 | 19H0329-01 | ND |
| 2019-08-20 | 19H1758-02 | ND |
| 2019-10-10 | 19J0709-01 | ND |
| 2019-10-10 | 19J0709-04 | ND |
| 2019-10-10 | 19J0712-01 | ND |
| 2020-02-10 | 20B0464-01 | ND |
| 2020-06-09 | 20F0692-02 | ND |
| 2020-08-06 | 20H0428-02 | ND |
| 2020-08-06 | 20H0425-02 | ND |
| 2020-08-06 | 20H0422-02 | ND |
| 2020-08-06 | 20H0425-01 | ND |
| 2020-12-08 | 20L0325-01 | ND |
| 2021-06-04 | 21F0277-01 | ND |
| 2021-09-23 | 21I1339-01 | ND |
| 2021-12-14 | 21L0590-01 | ND |
| 2021-12-14 | 21L0591-01 | ND |
| 2022-09-29 | 22I2256-02 | ND |
| 2022-09-29 | 22I2256-03 | ND |
| 2022-09-29 | 22I2264-01 | ND |
| 2022-10-11 | 22J0377-02 | ND |
| 2022-10-11 | 22J0382-01 | ND |
| 2022-10-11 | 22J0377-01 | ND |
| 2022-11-22 | 22K1042-01 | ND |
| 2023-03-21 | 23C1011-01 | ND |
| 2023-06-28 | 23F2171-01 | ND |
| 2023-09-28 | 23I1574-01 | ND |
| 2023-09-28 | 23I1577-02 | ND |
| 2023-09-28 | 23I1577-04 | ND |
| 2023-09-28 | 23I1581-01 | ND |
| 2023-10-23 | 23J1132-01 | ND |
| 2023-10-23 | 23J1132-02 | ND |
| 2023-10-23 | 23J1133-01 | ND |