1,2,4-Trichlorobenzene
Elizabethtown Area Water
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 | 5 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 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 |
|---|---|---|
| 2018-04-23 | 8044341-01 | ND |
| 2018-04-23 | 8044341-02 | ND |
| 2018-04-23 | 8044341-03 | ND |
| 2019-06-10 | 9045803-02RE | ND |
| 2019-06-10 | 9045803-03 | ND |
| 2019-06-10 | 9045803-01 | ND |
| 2020-05-26 | 22371315.00 | ND |
| 2020-05-26 | 22371273.00 | ND |
| 2020-05-26 | 22371252.00 | ND |
| 2020-05-26 | 22371294.00 | ND |
| 2020-05-26 | 22371231.00 | ND |
| 2021-02-12 | 24019991.00 | ND |
| 2021-04-05 | 24395285.00 | ND |
| 2021-04-05 | 24395264.00 | ND |
| 2021-04-05 | 24395306.00 | ND |
| 2022-04-18 | 26609231.00 | ND |
| 2022-04-18 | 26609252.00 | ND |
| 2022-04-18 | 26609210.00 | ND |
| 2023-04-24 | 28860136.00 | ND |
| 2023-04-24 | 28860137.00 | ND |
| 2023-04-24 | 28860135.00 | ND |
| 2023-05-08 | 29061791.00 | ND |
| 2023-05-08 | 29061792.00 | ND |
| 2023-05-08 | 29061793.00 | ND |