1,2,4-Trichlorobenzene
Cedar Point
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 | 3 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-02-15 | AE14107 | ND |
| 2018-03-28 | AE20642 | ND |
| 2019-02-28 | AE56560 | ND |
| 2019-02-28 | AE56596 | ND |
| 2019-05-28 | AE68232 | ND |
| 2020-02-18 | AE98742 | ND |
| 2020-02-18 | AE98744 | ND |
| 2020-06-08 | AF14416 | ND |
| 2020-09-01 | AF26048 | ND |
| 2020-11-05 | AF33500 | ND |
| 2021-03-11 | AF46545 | ND |
| 2021-03-11 | AF46547 | ND |
| 2021-05-24 | AF55139 | ND |
| 2021-09-13 | AF69548 | ND |
| 2021-11-02 | AF75613 | ND |
| 2022-01-31 | AF82593 | ND |
| 2022-01-31 | AF82597 | ND |
| 2022-04-19 | AF93661 | ND |
| 2022-08-18 | AG10060 | ND |
| 2022-12-20 | AG22382 | ND |
| 2023-02-21 | AG29727 | ND |
| 2023-02-21 | AG29729 | ND |
| 2023-04-19 | AG37371 | ND |
| 2023-09-06 | AG55147 | ND |
| 2023-12-21 | AG67280 | ND |