1,2,4-Trichlorobenzene
East Ridge Mobile Home Park
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 | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 1 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-13 | 1804057-01 | ND |
| 2019-04-25 | 1903717-01 | ND |
| 2019-05-31 | 1909092-01 | ND |
| 2019-08-28 | 1913889-01 | ND |
| 2019-10-24 | 1918559-01 | ND |
| 2020-01-22 | 2000435-01 | ND |
| 2020-04-23 | 2006370-01 | ND |
| 2020-07-27 | 2013008-01 | ND |
| 2020-12-16 | 2019693-01 | ND |
| 2021-05-27 | 2104891-01 | ND |
| 2021-08-11 | 2112112-01 | ND |
| 2021-11-10 | 2119361-01 | ND |
| 2022-09-14 | 2215393-01 | ND |
| 2023-12-21 | 2304199-01 | ND |