1,2,4-Trichlorobenzene
Galveston County Water Control and Improvement District 8
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 | 4 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-02-27 | AC45085 | ND |
2014-05-28 | AC55339 | ND |
2014-08-13 | AC63441 | ND |
2014-11-20 | AC72687 | ND |
2015-01-27 | AC77967 | ND |
2015-06-02 | AC94162 | ND |
2016-03-23 | AD30141 | ND |
2017-02-07 | AD69218 | ND |
2018-03-19 | AE18872 | ND |
2018-03-19 | AE18882 | ND |
2019-02-04 | AE52698 | ND |