1,2,4-Trichlorobenzene
Quartz Hill Water District
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 | 9 | 0 | ND |
2015 | ND | 9 | 0 | ND |
2016 | ND | 9 | 0 | ND |
2017 | ND | 9 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-10-28 | 3761-021-0655 | ND |
2014-10-28 | 3761-018-0836 | ND |
2014-10-28 | 3761-017-0844 | ND |
2014-10-28 | 3761-016-0707 | ND |
2014-10-28 | 3761-015-0904 | ND |
2014-10-28 | 3761-012-0736 | ND |
2014-10-28 | 3761-009-0821 | ND |
2014-10-28 | 3761-006-0758 | ND |
2014-10-28 | 3761-005-0742 | ND |
2015-10-13 | 3761-017-0838 | ND |
2015-10-13 | 3761-021-0908 | ND |
2015-10-13 | 3761-018-0848 | ND |
2015-10-13 | 3761-005-0735 | ND |
2015-10-13 | 3761-016-0900 | ND |
2015-10-13 | 3761-006-0800 | ND |
2015-10-13 | 3761-015-0825 | ND |
2015-10-13 | 3761-009-0815 | ND |
2015-10-13 | 3761-012-0720 | ND |
2016-07-19 | 3761-021-0715 | ND |
2016-07-19 | 3761-005-0845 | ND |
2016-07-19 | 3761-006-0810 | ND |
2016-07-19 | 3761-009-0755 | ND |
2016-07-19 | 3761-012-0830 | ND |
2016-07-19 | 3761-018-0725 | ND |
2016-07-19 | 3761-017-0740 | ND |
2016-07-19 | 3761-016-0705 | ND |
2016-07-19 | 3761-015-0650 | ND |
2017-07-18 | 3761-018-0805 | ND |
2017-07-18 | 3761-015-0735 | ND |
2017-07-18 | 3761-021-0715 | ND |
2017-07-18 | 3761-012-0850 | ND |
2017-07-18 | 3761-009-0815 | ND |
2017-07-18 | 3761-017-0750 | ND |
2017-07-18 | 3761-006-0840 | ND |
2017-07-18 | 3761-016-0700 | ND |
2017-07-18 | 3761-005-0900 | ND |