1,2,4-Trichlorobenzene
Tignall Water System
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 | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 6 | 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 |
---|---|---|
2014-05-12 | AI40373 | ND |
2014-05-12 | AI40374 | ND |
2015-03-30 | AI69883 | ND |
2016-11-30 | AJ34371 | ND |
2016-11-30 | AJ34372 | ND |
2016-11-30 | AJ34373 | ND |
2016-12-21 | AJ37328 | ND |
2017-11-13 | AJ73618 | ND |
2019-08-06 | AK24846 | ND |
2019-08-06 | AK24847 | ND |
2019-08-06 | AK24848 | ND |
2019-08-06 | AK24849 | ND |
2019-08-13 | AK26033 | ND |
2019-10-15 | AK35214 | ND |