1,2,4-Trichlorobenzene
City of Rexburg
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 | 1 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 13 | 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 |
|---|---|---|
| 2018-06-29 | VB18070188001 | ND |
| 2018-08-01 | V1813281 | ND |
| 2019-01-08 | V1851921 | ND |
| 2020-06-29 | VB20070003001 | ND |
| 2020-06-29 | VB20062582001 | ND |
| 2020-06-29 | VB20062582002 | ND |
| 2020-06-29 | VB20062582003 | ND |
| 2020-06-29 | VB20062582004 | ND |
| 2020-06-29 | VB20062582005 | ND |
| 2020-06-29 | VB20062582006 | ND |
| 2020-11-30 | VB20120066001 | ND |
| 2020-11-30 | VB20120071001 | ND |
| 2021-01-25 | VB21011641001 | ND |
| 2021-01-25 | VB21011645001 | ND |
| 2021-04-26 | VB21041974001 | ND |
| 2021-04-26 | VB21041931001 | ND |
| 2021-07-28 | VB21072453001 | ND |
| 2021-07-28 | VB21072453002 | ND |
| 2022-06-27 | VB22062447005 | ND |
| 2022-06-27 | VB22062447006 | ND |
| 2023-06-14 | VMDF068709 | ND |
| 2023-06-14 | VMDF068708 | ND |
| 2023-06-14 | VMDF068706 | ND |
| 2023-06-14 | VMDF068705 | ND |
| 2023-06-14 | VMDF068702 | ND |
| 2023-09-11 | VMDI035501 | ND |
| 2023-09-11 | VMDI035901 | ND |
| 2023-09-11 | VMDI034801 | ND |
| 2023-09-11 | VMDI035401 | ND |
| 2023-10-30 | VMDJ094501 | ND |
| 2023-10-30 | VMDJ094504 | ND |
| 2023-10-30 | VMDJ094502 | ND |
| 2023-10-30 | VMDJ094505 | ND |