1,2,4-Trichlorobenzene
Aqua Pa Perkiomen 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 | 5 | 0 | ND |
| 2015 | ND | 5 | 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 |
|---|---|---|
| 2014-02-04 | AE22408 | ND |
| 2014-02-05 | AE22411 | ND |
| 2014-02-19 | AE23934 | ND |
| 2014-02-19 | AE23933 | ND |
| 2014-02-19 | AE23939 | ND |
| 2015-02-03 | 12404361 | ND |
| 2015-02-03 | 12404382 | ND |
| 2015-02-03 | 12404403 | ND |
| 2015-02-03 | 12404424 | ND |
| 2015-02-03 | 12404445 | ND |
| 2016-01-20 | 13755348 | ND |
| 2016-01-20 | 13755390 | ND |
| 2016-01-20 | 13755369 | ND |
| 2016-01-20 | 13755306 | ND |
| 2016-01-20 | 13755327 | ND |
| 2017-02-21 | 15658844 | ND |
| 2017-03-28 | 15799026 | ND |
| 2017-04-19 | 15941125 | ND |
| 2017-06-21 | 16260399 | ND |
| 2017-12-20 | 17165037 | ND |
| 2018-02-27 | AF76926 | ND |
| 2018-02-27 | AF76923 | ND |
| 2018-02-27 | AF76925 | ND |
| 2018-02-27 | AF76922 | ND |
| 2018-07-19 | AF90332 | ND |
| 2019-04-24 | AG14547 | ND |
| 2019-04-24 | AG14545 | ND |
| 2019-04-24 | AG14549 | ND |
| 2019-04-24 | AG14552 | ND |
| 2019-05-08 | AG17044 | ND |