1,2,4-Trichlorobenzene
Pennsylvania American Water Company Yardley
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-04-02 | 25324901 | ND |
2014-08-05 | 26501001 | ND |
2014-08-05 | 26500201 | ND |
2015-04-01 | 12620824 | ND |
2015-08-12 | 13123098 | ND |
2015-08-12 | 13123064 | ND |
2016-04-05 | 14089331 | ND |
2016-08-04 | 14719948 | ND |
2016-08-04 | 14719927 | ND |
2017-04-06 | 15922053 | ND |
2017-08-02 | 16550790 | ND |
2017-09-29 | 17288520 | ND |
2017-10-31 | 16866926 | ND |
2018-04-11 | 39062701 | ND |
2018-08-14 | 40630801 | ND |
2018-08-14 | 40630201 | ND |
2019-04-04 | 43649801 | ND |
2019-08-22 | 45815901 | ND |
2019-08-22 | 45816001 | ND |