1,2,4-Trichlorobenzene
California Water Service Company-Lancaster
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 | 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 |
---|---|---|
2014-05-20 | 5701-001-1000 | ND |
2014-06-24 | 5701-005-1112 | ND |
2015-05-19 | 5701-001-0937 | ND |
2015-06-16 | 5701-005-1347 | ND |
2016-05-24 | 5701-001-1342 | ND |
2016-06-28 | 5701-005-1145 | ND |
2017-05-09 | 5701-001-1025 | ND |
2017-06-20 | 5701-005-1501 | ND |
2018-05-08 | 5701-001-1310 | ND |
2019-06-04 | 5701-001-1319 | ND |