1,2,4-Trichlorobenzene
Bloomington
NOTE: Bloomington purchases water from Minneapolis which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Minneapolis.
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 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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
NOTE: Bloomington purchases water from Minneapolis which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Minneapolis.
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-03 | 18E0324-01 | ND |
| 2019-10-09 | 19J0500-01 | ND |
| 2020-03-18 | 20C0794-01 | ND |
| 2020-03-18 | 20C0794-02 | ND |
| 2020-05-20 | 20E1211-01 | ND |
| 2020-07-24 | 20G1757-01 | ND |
| 2020-10-27 | 20J1367-01 | ND |
| 2021-04-20 | 21D1030-02 | ND |
| 2021-10-21 | 21J1097-01 | ND |
| 2022-01-26 | 22A0928-01 | ND |
| 2022-02-07 | 22B0406-01 | ND |
| 2023-04-13 | 23D0754-01 | ND |
| 2023-04-13 | 23D0754-02 | ND |