1,2,4-Trichlorobenzene
Bethany
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-02-28 | 4B28008-01 | ND |
| 2014-06-02 | 4F02034-01 | ND |
| 2014-09-01 | 4I02021-02 | ND |
| 2014-12-03 | 4L03017-02 | ND |
| 2015-03-04 | 5C04003-02 | ND |
| 2015-06-03 | 5F03132-02 | ND |
| 2015-09-02 | 5I02044-02 | ND |
| 2015-12-02 | 5L02031-02 | ND |
| 2016-03-03 | 6C03032-01 | ND |
| 2016-06-02 | 6F02019-01 | ND |
| 2016-09-07 | 6I07033-01 | ND |
| 2016-12-01 | 6L01012-01 | ND |
| 2017-03-02 | 7C02012-01 | ND |
| 2017-05-16 | 7E16051-01 | ND |
| 2017-09-05 | 7I05076-01 | ND |
| 2017-12-04 | 7L04019-01 | ND |
| 2018-03-05 | AC05029-01 | ND |
| 2018-06-05 | AF05114-01 | ND |
| 2019-03-14 | BC14002-01RE1 | ND |