1,2,4-Trichlorobenzene
Angola Pump 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 | 5 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 9 | 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 |
---|---|---|
2014-01-30 | S438310 | ND |
2014-04-30 | S479081 | ND |
2014-07-16 | L5163369-1 | ND |
2014-09-24 | S481386 | ND |
2014-09-24 | S479246 | ND |
2015-08-26 | S602018 | ND |
2015-09-22 | S602047 | ND |
2015-09-22 | S602046 | ND |
2016-07-20 | S614692 | ND |
2016-07-20 | S614689 | ND |
2016-07-20 | S614690 | ND |
2016-07-20 | S614691 | ND |
2016-09-23 | S670411 | ND |
2016-09-23 | S670389 | ND |
2016-10-19 | S614695 | ND |
2017-01-24 | S670503 | ND |
2017-04-25 | S730782 | ND |
2017-07-25 | S679347 | ND |
2017-09-21 | S730869 | ND |
2017-09-21 | S730837 | ND |
2017-10-23 | S769406 | ND |
2018-01-23 | S730855 | ND |
2018-07-26 | S811985 | ND |
2018-09-21 | S812493 | ND |
2018-09-21 | S812489 | ND |
2018-11-09 | S812579 | ND |
2019-01-17 | S770888 | ND |
2019-04-29 | S847991 | ND |
2019-07-24 | S770597 | ND |
2019-07-24 | S770595 | ND |
2019-07-24 | S770592 | ND |
2019-07-24 | S770588 | ND |
2019-09-19 | S864741 | ND |
2019-09-19 | S864737 | ND |
2019-10-03 | S919889 | ND |