1,2,4-Trichlorobenzene
Strong Waterworks
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 | 1 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 6 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-01-14 | 14016010901 | ND |
2015-03-10 | 15071002401 | ND |
2015-07-14 | 15197005801 | ND |
2015-10-15 | 15289010401 | ND |
2016-01-13 | 16015008601 | ND |
2017-02-27 | 17060000401 | ND |
2018-02-27 | 18060003401 | ND |
2018-05-01 | 18123007101 | ND |
2018-09-17 | 18263004401 | ND |
2018-09-17 | 18263004501 | ND |
2018-10-29 | 18305001401 | ND |
2018-11-26 | 18333002201 | ND |
2019-02-11 | 19045009701 | ND |