1,2,4-Trichlorobenzene
Montgomery Trace 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 | 1 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 7 | 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 |
---|---|---|
2014-06-25 | AC58039 | ND |
2015-03-31 | AC86777 | ND |
2015-03-31 | AC86797 | ND |
2015-03-31 | AC86757 | ND |
2015-05-29 | AC93869 | ND |
2015-05-29 | AC93865 | ND |
2016-01-11 | AD17344 | ND |
2016-01-11 | AD17336 | ND |
2016-01-11 | AD17340 | ND |
2016-01-11 | AD17356 | ND |
2016-01-11 | AD17354 | ND |
2017-01-23 | AD66118 | ND |
2017-01-23 | AD66116 | ND |
2017-01-23 | AD66100 | ND |
2017-01-23 | AD66110 | ND |
2017-01-23 | AD66120 | ND |
2018-02-20 | AE14431 | ND |
2018-02-20 | AE14437 | ND |
2018-02-20 | AE14439 | ND |
2018-02-20 | AE14441 | ND |
2018-02-20 | AE14435 | ND |
2018-09-11 | AE39610 | ND |
2018-11-05 | AE45253 | ND |
2019-01-16 | AE50130 | ND |
2019-01-16 | AE50174 | ND |
2019-01-16 | AE50172 | ND |
2019-01-16 | AE50146 | ND |
2019-01-16 | AE50134 | ND |
2019-01-16 | AE50138 | ND |
2019-04-16 | AE62574 | ND |