1,2,4-Trichlorobenzene
Benkelman, City of
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 | 2 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 7 | 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 |
|---|---|---|
| 2014-09-22 | 324649 | ND |
| 2014-09-22 | 324648 | ND |
| 2015-03-16 | 348750 | ND |
| 2015-03-16 | 348751 | ND |
| 2015-06-15 | 364989 | ND |
| 2015-06-15 | 364990 | ND |
| 2015-09-21 | 378776 | ND |
| 2015-09-21 | 378777 | ND |
| 2015-12-14 | 402241 | ND |
| 2015-12-14 | 402242 | ND |
| 2016-03-14 | ND | |
| 2016-03-14 | ND | |
| 2016-06-20 | ND | |
| 2016-06-20 | ND | |
| 2016-09-20 | ND | |
| 2016-09-20 | ND | |
| 2016-12-19 | ND | |
| 2016-12-19 | ND | |
| 2017-03-20 | ND | |
| 2017-03-20 | ND | |
| 2017-06-19 | ND | |
| 2017-06-19 | ND | |
| 2017-09-18 | ND | |
| 2017-09-18 | ND | |
| 2017-10-23 | ND | |
| 2018-09-10 | 571944 | ND |
| 2018-09-10 | 571945 | ND |
| 2019-09-09 | 630431 | ND |