1,2,4-Trichlorobenzene
Tempe Water Supply Corporation 1
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 | 6 | 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 |
---|---|---|
2014-01-15 | AC38992 | ND |
2014-01-15 | AC38994 | ND |
2014-01-15 | AC39002 | ND |
2015-02-24 | AC81713 | ND |
2015-02-24 | AC81699 | ND |
2015-02-24 | AC81709 | ND |
2015-02-24 | AC81697 | ND |
2015-09-10 | AD06572 | ND |
2015-12-03 | AD15456 | ND |
2016-02-25 | AD25795 | ND |
2016-02-25 | AD25785 | ND |
2016-02-25 | AD25783 | ND |
2016-02-25 | AD25791 | ND |
2017-06-01 | AD86432 | ND |
2017-06-01 | AD86412 | ND |
2017-06-01 | AD86408 | ND |
2017-06-01 | AD86426 | ND |
2018-02-13 | AE13596 | ND |
2018-02-13 | AE13554 | ND |
2018-02-13 | AE13556 | ND |
2018-02-13 | AE13592 | ND |
2019-02-26 | AE55996 | ND |
2019-02-26 | AE55992 | ND |
2019-02-26 | AE56002 | ND |
2019-02-26 | AE56004 | ND |