1,2,4-Trichlorobenzene
Wild Oaks Water Company
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-12-05 | 420-146460-2POCS | ND |
| 2018-12-05 | 420-146460-1-POCS | ND |
| 2018-12-05 | 420-146460-3POCS | ND |
| 2019-07-23 | 420-157380-3POCS | ND |
| 2019-07-23 | 420-157380-2POCS | ND |
| 2019-07-23 | 420-157380-1POCS | ND |
| 2020-05-26 | AW09699-POCS | ND |
| 2020-05-26 | AW09697-POCS | ND |
| 2020-10-20 | AW20296-POCS | ND |
| 2020-11-20 | 420-185836-3POCS | ND |
| 2020-11-20 | 420-185836-1POCS | ND |
| 2020-11-20 | 420-185836-5POCS | ND |
| 2021-02-24 | 420-191749-1-POCS | ND |
| 2021-02-24 | 420-191749-3-POCS | ND |
| 2021-02-24 | 420-191749-2-POCS | ND |
| 2021-05-19 | AX09636-POCS | ND |
| 2021-05-19 | AX09638-POCS | ND |
| 2021-10-06 | AX20388-POCS | ND |
| 2022-03-16 | 420-219294-3-POCS | ND |
| 2022-03-16 | 420-219294-2-POCS | ND |
| 2022-03-16 | 420-219294-1-POCS | ND |
| 2022-06-07 | AY09594-POCS | ND |
| 2022-06-07 | AY09596-POCS | ND |
| 2022-10-04 | AY17877-POCS | ND |
| 2023-04-20 | 23D2369-02-POCS | ND |
| 2023-04-20 | 23D2369-04-POCS | ND |
| 2023-04-20 | 23D2369-06-POCS | ND |
| 2023-05-03 | AZ08003-POCS | ND |
| 2023-05-03 | AZ08005-POCS | ND |
| 2023-11-02 | AZ20329-POCS | ND |