1,2,4-Trichlorobenzene
El Monte 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 |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-01-28 | 9588-006-1035 | ND |
2014-07-28 | 9588-009-1030 | ND |
2015-01-13 | 9588-006-1015 | ND |
2016-01-11 | 9588-006-1045 | ND |
2016-07-07 | 9588-009-0950 | ND |
2017-01-30 | 9588-006-1350 | ND |
2017-08-03 | 9588-009-0945 | ND |
2018-01-25 | 9588-006-1130 | ND |
2018-07-25 | 9588-009-1300 | ND |
2019-01-31 | 9588-006-1050 | ND |
2019-05-28 | 9588-043-1310 | ND |
2019-05-28 | 9588-044-1240 | ND |
2019-05-28 | 9588-045-1255 | ND |
2019-07-25 | 9588-009-1430 | ND |