1,2,4-Trichlorobenzene
Lee County WSC
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 | ND | 4 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 9 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-02-25 | AC44508 | ND |
| 2014-02-25 | AC44512 | ND |
| 2014-05-13 | AC53987 | ND |
| 2014-05-13 | AC53985 | ND |
| 2015-03-04 | AC82892 | ND |
| 2015-03-04 | AC82934 | ND |
| 2015-03-04 | AC82932 | ND |
| 2015-03-04 | AC82926 | ND |
| 2015-03-04 | AC82930 | ND |
| 2015-03-04 | AC82924 | ND |
| 2015-06-17 | AC96390 | ND |
| 2015-06-17 | AC96380 | ND |
| 2016-01-27 | AD20413 | ND |
| 2016-01-27 | AD20415 | ND |
| 2016-01-27 | AD20423 | ND |
| 2016-01-27 | AD20427 | ND |
| 2016-04-12 | AD32845 | ND |
| 2016-04-12 | AD32843 | ND |
| 2016-09-08 | AD48502 | ND |
| 2016-10-31 | AD55564 | ND |
| 2017-01-30 | AD67529 | ND |
| 2017-01-30 | AD67533 | ND |
| 2017-01-30 | AD67539 | ND |
| 2017-05-04 | AD82775 | ND |
| 2017-05-04 | AD82781 | ND |
| 2017-05-04 | AD82777 | ND |
| 2017-05-30 | AD85893 | ND |
| 2017-07-24 | AD90394 | ND |
| 2017-10-04 | AD99282 | ND |
| 2018-02-20 | AE14425 | ND |
| 2018-02-20 | AE14429 | ND |
| 2018-02-20 | AE14427 | ND |
| 2018-02-20 | AE14423 | ND |
| 2018-05-03 | AE25072 | ND |
| 2018-05-03 | AE25074 | ND |
| 2018-05-03 | AE25082 | ND |
| 2018-07-10 | AE32804 | ND |
| 2019-01-15 | AE49827 | ND |
| 2019-01-15 | AE49821 | ND |
| 2019-01-15 | AE49825 | ND |
| 2019-01-15 | AE49831 | ND |
| 2019-01-15 | AE49823 | ND |
| 2019-04-10 | AE61828 | ND |
| 2019-07-26 | AE76071 | ND |