1,2,4-Trichlorobenzene
Aqua Pa Hatboro
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 | 9 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-01-07 | AE19909 | ND |
| 2014-02-04 | AE22451 | ND |
| 2014-02-04 | AE22453 | ND |
| 2014-02-04 | AE22450 | ND |
| 2014-02-21 | AE23907 | ND |
| 2014-04-08 | AE28690 | ND |
| 2014-06-17 | AE36363 | ND |
| 2014-07-24 | AE40860 | ND |
| 2014-11-19 | AE56461 | ND |
| 2015-02-03 | 12401075 | ND |
| 2015-02-03 | 12401117 | ND |
| 2015-02-03 | 12401096 | ND |
| 2015-02-03 | 12401054 | ND |
| 2015-02-03 | 12401033 | ND |
| 2015-12-15 | 13632482 | ND |
| 2016-01-19 | 13751831 | ND |
| 2016-01-19 | 13751747 | ND |
| 2016-01-19 | 13751768 | ND |
| 2016-01-19 | 13751789 | ND |
| 2016-01-19 | 13751810 | ND |
| 2017-03-28 | 15794754 | ND |
| 2017-03-28 | 15794733 | ND |
| 2017-06-20 | 16256722 | ND |
| 2017-06-20 | 16256701 | ND |
| 2017-12-13 | 17161005 | ND |
| 2018-03-14 | AF77909 | ND |
| 2018-03-14 | AF77910 | ND |
| 2018-03-14 | AF77911 | ND |
| 2018-03-14 | AF77912 | ND |
| 2018-03-14 | AF77913 | ND |
| 2019-03-13 | AG10399 | ND |
| 2019-03-13 | AG10400 | ND |
| 2019-03-13 | AG10406 | ND |
| 2019-03-13 | AG10402 | ND |
| 2019-03-20 | AG12154 | ND |