1,2,4-Trichlorobenzene
Brookfield Water Utility
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 | 17 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 14 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-03-10 | 773786 | ND |
| 2014-03-10 | 773793 | ND |
| 2014-03-10 | 773789 | ND |
| 2014-03-10 | 773794 | ND |
| 2014-03-10 | 773796 | ND |
| 2014-03-10 | 773790 | ND |
| 2014-03-10 | 773799 | ND |
| 2014-03-10 | 773788 | ND |
| 2014-03-10 | 773797 | ND |
| 2014-03-10 | 773791 | ND |
| 2014-03-10 | 773800 | ND |
| 2014-03-10 | 773801 | ND |
| 2014-03-10 | 773787 | ND |
| 2014-03-10 | 773785 | ND |
| 2014-03-10 | 773792 | ND |
| 2014-03-10 | 773798 | ND |
| 2014-03-10 | 773795 | ND |
| 2017-07-11 | 1003069 | ND |
| 2017-07-11 | 1003071 | ND |
| 2017-07-11 | 1003067 | ND |
| 2017-07-11 | 1003072 | ND |
| 2017-07-11 | 1003068 | ND |
| 2017-07-11 | 1003070 | ND |
| 2017-07-12 | 1003516 | ND |
| 2017-07-12 | 1003517 | ND |
| 2017-07-12 | 1003521 | ND |
| 2017-07-12 | 1003518 | ND |
| 2017-07-12 | 1003523 | ND |
| 2017-07-12 | 1003520 | ND |
| 2017-07-12 | 1003522 | ND |
| 2017-07-12 | 1003519 | ND |
| 2018-08-21 | 1075293 | ND |
| 2019-10-10 | 1154415 | ND |