1,2,4-Trichlorobenzene
Towering Oaks and Rosewood Hills Subdivisionivi
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 5 | 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 |
---|---|---|
2015-02-23 | AC81483 | ND |
2015-02-23 | AC81473 | ND |
2015-02-23 | AC81481 | ND |
2016-02-17 | AD23949 | ND |
2016-02-17 | AD23953 | ND |
2016-02-17 | AD23945 | ND |
2017-02-07 | AD69276 | ND |
2017-02-07 | AD69248 | ND |
2017-02-07 | AD69250 | ND |
2018-01-22 | AE09615 | ND |
2018-01-22 | AE09621 | ND |
2018-01-22 | AE09611 | ND |
2018-08-03 | AE35870 | ND |
2018-10-30 | AE44876 | ND |
2019-02-20 | AE55073 | ND |
2019-02-20 | AE55095 | ND |
2019-02-20 | AE55067 | ND |
2019-02-20 | AE55055 | ND |
2019-04-25 | AE63736 | ND |