1,2,4-Trichlorobenzene
City of San Luis
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 | 6 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 6 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-13 | 479280-003-2 | ND |
2014-02-13 | 479280-003-1 | ND |
2015-05-20 | 508161-07D | ND |
2015-05-20 | 508161-07C | ND |
2015-05-20 | 508161-07B | ND |
2015-05-20 | 508161-07A | ND |
2015-05-20 | 508161-008B | ND |
2015-05-20 | 508161-008A | ND |
2016-05-23 | 530530-002 | ND |
2016-05-23 | 530530-001 | ND |
2017-06-05 | 554618-002 | ND |
2017-06-05 | 554618-001 | ND |
2018-03-27 | 201803280588V | ND |
2018-03-27 | 201803280599V | ND |
2018-03-27 | 201803280598V | ND |
2018-03-27 | 201803280597V | ND |
2018-03-27 | 201803280596V | ND |
2018-03-27 | 201803280589V | ND |