1,2,4-Trichlorobenzene
Santa Claus Water Utility
NOTE: Santa Claus Water Utility purchases water from Patoka Lake Regional Water which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Patoka Lake Regional 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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 2 | 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
NOTE: Santa Claus Water Utility purchases water from Patoka Lake Regional Water which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Patoka Lake Regional Water.
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-08 | 425304RV-1803 | ND |
| 2019-08-27 | 463440RV-1903 | ND |
| 2020-06-09 | 4645714 | ND |
| 2021-07-27 | 4966013 | ND |
| 2022-08-09 | 1-810-33419-1_IN | ND |
| 2023-08-17 | 1-810-74525-1_IN | ND |