1,2,4-Trichlorobenzene
East Cocalico Township
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 | 10 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 15 | 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 |
|---|---|---|
| 2014-05-23 | 14030254-04 | ND |
| 2014-05-23 | 14030254-05 | ND |
| 2014-05-23 | 14030254-06 | ND |
| 2014-05-23 | 14032953-06 | ND |
| 2014-05-23 | 14030254-08 | ND |
| 2014-05-23 | 14032953-08 | ND |
| 2014-05-30 | 14032953-02 | ND |
| 2014-05-30 | 14030254-03 | ND |
| 2014-05-30 | 14030254-07 | ND |
| 2014-05-30 | 14030254-01 | ND |
| 2015-04-28 | 12984597 | ND |
| 2015-04-28 | 12984596 | ND |
| 2015-04-28 | 12984595 | ND |
| 2016-01-25 | 13957853 | ND |
| 2016-04-19 | 14217166 | ND |
| 2016-08-15 | 14869698 | ND |
| 2016-08-15 | 14869727 | ND |
| 2016-08-15 | 14869751 | ND |
| 2016-09-23 | 15042103 | ND |
| 2016-10-31 | 15336646 | ND |
| 2017-03-03 | 15902754 | ND |
| 2017-09-22 | 16992077 | ND |
| 2017-09-22 | 16846645 | ND |
| 2017-09-22 | 16992140 | ND |
| 2017-09-22 | 16846608 | ND |
| 2017-09-22 | 16846603 | ND |
| 2017-09-22 | 16991929 | ND |
| 2017-09-22 | 16991950 | ND |
| 2017-09-22 | 16991971 | ND |
| 2017-09-22 | 16991992 | ND |
| 2017-09-22 | 16992013 | ND |
| 2017-09-22 | 16992035 | ND |
| 2017-09-22 | 16992056 | ND |
| 2017-09-22 | 16992098 | ND |
| 2017-09-22 | 16992119 | ND |
| 2018-04-27 | 8045051-02RE | ND |
| 2018-04-27 | 8045051-08 | ND |
| 2018-04-27 | 8045051-11 | ND |
| 2018-04-27 | 8045051-10 | ND |
| 2019-04-29 | 9041601-02 | ND |
| 2019-04-29 | 9041601-06 | ND |
| 2019-04-29 | 9041601-08 | ND |
| 2019-04-29 | 9041601-09 | ND |