1,2,4-Trichlorobenzene
Anderson Water Department
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 | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-02-10 | 2014020374RV-140 | ND |
| 2014-02-10 | 2014020379RV-140 | ND |
| 2014-05-11 | 2011050367RV-140 | ND |
| 2014-05-11 | 2011050368RV-140 | ND |
| 2015-09-22 | 2015091969RV-150 | ND |
| 2016-10-25 | 2016101663RV-160 | ND |
| 2017-05-09 | 2017051066RV-170 | ND |
| 2017-05-10 | 2017051143RV-170 | ND |
| 2017-08-08 | 2017082394RV-170 | ND |
| 2017-11-14 | 2017111330RV-170 | ND |
| 2018-05-09 | 18051457001RV-18 | ND |
| 2018-09-17 | 18092076RV-1803 | ND |
| 2018-11-15 | 18111870001RV-18 | ND |
| 2019-03-26 | 2019031464RV-190 | ND |
| 2019-04-03 | 2019040922RV-190 | ND |
| 2019-07-09 | 2019072432RV-190 | ND |
| 2019-10-03 | 2019101030RV-190 | ND |