1,2,4-Trichlorobenzene
Mustang SUD
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 | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-16 | Q1401487002 | ND |
| 2015-04-07 | Q1512608012 | ND |
| 2015-04-07 | Q1512608009 | ND |
| 2015-07-06 | Q1525681012 | ND |
| 2015-07-06 | Q1525681009 | ND |
| 2016-01-07 | Q1600448016 | ND |
| 2016-01-07 | Q1600448011 | ND |
| 2016-01-07 | Q1600448010 | ND |
| 2016-01-07 | Q1600448014 | ND |
| 2017-03-22 | Q1712369006 | ND |
| 2017-03-22 | Q1712369008 | ND |
| 2017-03-22 | Q1712369004 | ND |
| 2017-03-22 | Q1712369002 | ND |
| 2017-10-04 | Q1749048001 | ND |
| 2018-07-10 | Q1827459007 | ND |
| 2018-07-10 | Q1827459006 | ND |
| 2018-07-10 | Q1827459004 | ND |
| 2018-07-10 | Q1827459002 | ND |
| 2019-01-08 | Q1900592007 | ND |
| 2019-01-08 | Q1900592020 | ND |
| 2019-01-08 | Q1900592008 | ND |
| 2019-01-08 | Q1900592017 | ND |