1,2,4-Trichlorobenzene
Kimzey Regional Water District
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-03-17 | 14079002301 | ND |
| 2014-11-17 | 14324002501 | ND |
| 2015-01-26 | 15029005201 | ND |
| 2015-10-07 | 15282003501 | ND |
| 2016-01-07 | 16008011909 | ND |
| 2016-01-25 | 16028002509 | ND |
| 2016-11-22 | 16327002701 | ND |
| 2017-01-03 | 17005010801 | ND |
| 2017-10-02 | 17278007901 | ND |
| 2018-01-23 | 18025001601 | ND |
| 2018-10-03 | 18277014001 | ND |
| 2019-01-08 | 19010004909 | ND |
| 2019-10-03 | 19277000901 | ND |
| 2019-11-18 | 19324000101 | ND |