1,2,4-Trichlorobenzene
Decatur Waterworks
NOTE: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Benton - Washington Regional Public Water Authority.
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 | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 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
NOTE: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Benton - Washington Regional Public Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-15 | 18137013001 | ND |
| 2018-07-31 | 18213008801 | ND |
| 2018-10-24 | 18298011801 | ND |
| 2019-01-09 | 19010016401 | ND |
| 2019-04-02 | 19093000801 | ND |
| 2020-04-14 | 20107008808 | ND |
| 2021-05-04 | 21126011201 | ND |
| 2022-04-05 | O196530-VOC-1 | ND |
| 2023-04-04 | O207446-VOC-1 | ND |