1,2,4-Trichlorobenzene
City of Atwater
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 8 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 8 | 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 |
---|---|---|
2014-03-12 | 5806-903-0910 | ND |
2014-03-12 | 5806-902-0935 | ND |
2014-03-12 | 5806-901-0815 | ND |
2014-03-12 | 5806-900-0735 | ND |
2016-03-23 | 5806-018-0900 | ND |
2016-03-23 | 5806-021-1000 | ND |
2016-03-23 | 5806-019-0930 | ND |
2016-03-23 | 5806-013-0630 | ND |
2016-03-23 | 5806-017-0830 | ND |
2016-03-23 | 5806-016-0800 | ND |
2016-03-23 | 5806-015-0730 | ND |
2016-03-23 | 5806-014-0700 | ND |
2019-02-27 | 5806-017-0730 | ND |
2019-02-27 | 5806-016-1020 | ND |
2019-02-27 | 5806-018-0820 | ND |
2019-02-27 | 5806-019-0855 | ND |
2019-02-27 | 5806-015-0650 | ND |
2019-02-27 | 5806-021-1155 | ND |
2019-02-27 | 5806-014-1130 | ND |
2019-02-27 | 5806-013-1100 | ND |