1,2,4-Trichlorobenzene
Schuylkill County. Municipal 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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-07-22 | L5170812-2 | ND |
| 2014-07-22 | L5170812-3 | ND |
| 2014-07-22 | L5170812-4 | ND |
| 2014-07-22 | L5170812-1 | ND |
| 2015-07-21 | 13055189 | ND |
| 2015-07-21 | 13055243 | ND |
| 2015-07-21 | 13055297 | ND |
| 2015-07-21 | 13055351 | ND |
| 2016-07-19 | 14793921 | ND |
| 2016-07-19 | 14793811 | ND |
| 2016-07-19 | 14793866 | ND |
| 2016-07-25 | 14627357 | ND |
| 2017-07-11 | 16465737 | ND |
| 2017-07-11 | 16465757 | ND |
| 2017-07-11 | 16465797 | ND |
| 2017-07-11 | 16465777 | ND |
| 2018-07-17 | 8020362-01 | ND |
| 2018-07-17 | 8020365-01 | ND |
| 2018-07-17 | 8020364-01 | ND |
| 2018-07-17 | 8020366-01 | ND |
| 2019-07-16 | 9024930-01RE | ND |
| 2019-07-16 | 9024930-02 | ND |
| 2019-07-16 | 9024930-03 | ND |
| 2019-07-16 | 9024930-04 | ND |