1,2,4-Trichlorobenzene
City of Horseshoe Bay
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 | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-08-14 | AC63675 | ND |
2014-08-14 | AC63677 | ND |
2015-08-03 | AD02089 | ND |
2015-08-03 | AD02081 | ND |
2016-07-20 | AD44977 | ND |
2016-07-20 | AD45005 | ND |
2017-07-06 | AD88504 | ND |
2017-07-06 | AD88512 | ND |
2018-07-05 | AE32454 | ND |
2018-07-05 | AE32446 | ND |
2019-09-04 | AE82025 | ND |
2019-09-04 | AE82027 | ND |