1,2,4-Trichlorobenzene
Huntington Water Department
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 | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 2 | 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 |
---|---|---|
2014-04-29 | 2014041556RV-140 | ND |
2014-09-08 | 2014090647RV-140 | ND |
2014-10-06 | 2014100638RV-140 | ND |
2015-01-19 | 2015010728RV-150 | ND |
2015-04-13 | 2015040786RV-150 | ND |
2015-05-11 | 2015050678RV-150 | ND |
2016-04-04 | 2016040215RV-160 | ND |
2016-05-16 | 2016051280RV-160 | ND |
2017-04-17 | 2017041080RV-170 | ND |
2018-04-17 | 2018041261RV-180 | ND |
2018-04-17 | 2018041264RV-180 | ND |
2019-04-16 | 2019041302RV-190 | ND |