1,2,4-Trichlorobenzene
Town of Woodsboro
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 | 1 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-07-07 | 0100027_02_00061 | ND |
2015-10-01 | E16001442004 | ND |
2015-10-01 | E16001442006 | ND |
2015-10-01 | E16001442008 | ND |
2016-08-25 | E17000799001 | ND |
2017-05-10 | E17004452001 | ND |
2018-03-14 | E18003358010 | ND |
2019-05-30 | E19004087006 | ND |
2019-05-30 | E19004087004 | ND |
2019-05-30 | E19004087001 | ND |