1,2,4-Trichlorobenzene
Sullivan County Complex
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 |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-10-07 | 49334.1 | ND |
| 2014-10-07 | 49335.1 | ND |
| 2014-11-13 | 49738 | ND |
| 2015-01-15 | 50104 | ND |
| 2015-04-09 | 50684 | ND |
| 2015-08-06 | 52309 | ND |
| 2016-10-13 | 56944.1 | ND |
| 2016-10-13 | 56945.1 | ND |
| 2016-10-13 | 56946.1 | ND |
| 2017-11-06 | 1711-00895-001 | ND |
| 2017-11-06 | 1711-00922-001 | ND |
| 2017-11-06 | 1711-00919-001 | ND |
| 2018-10-16 | 65529 | ND |
| 2018-10-16 | 65530 | ND |
| 2018-10-16 | 65531 | ND |
| 2019-10-15 | 71514.2 | ND |
| 2019-10-15 | 71515.1 | ND |
| 2019-10-15 | 71516.1 | ND |