1,2,4-Trichlorobenzene
Tatitlek 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 | 4 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-02-05 | VO*A1402070-01A | ND |
2014-04-30 | VO*A1405006-01A | ND |
2014-09-23 | VO*A1409411-01A | ND |
2014-11-14 | VO*A1411200-01A | ND |
2015-02-09 | VO*3189813 | ND |
2016-02-01 | VO*1160451001 | ND |
2017-02-27 | VO*440-178508-1 | ND |
2018-10-05 | VO*4083226 | ND |
2019-02-20 | 4207324 | ND |