1,2,4-Trichlorobenzene
City of Ceres
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-07-10 | 5806-035-0940 | ND |
| 2014-07-10 | 5806-034-0800 | ND |
| 2014-07-10 | 5806-032-0840 | ND |
| 2014-07-10 | 5806-016-1120 | ND |
| 2014-07-10 | 5806-014-0800 | ND |
| 2016-07-12 | 5806-022-1235 | ND |
| 2016-07-12 | 5806-023-1320 | ND |
| 2016-07-12 | 5806-027-0810 | ND |
| 2016-07-12 | 5806-028-0945 | ND |
| 2016-07-12 | 5806-040-0855 | ND |
| 2016-07-12 | 5806-038-0925 | ND |
| 2016-07-12 | 5806-039-0848 | ND |
| 2016-11-15 | 5806-027-0950 | ND |
| 2017-07-20 | 5806-035-1040 | ND |
| 2017-07-20 | 5806-040-0930 | ND |
| 2017-07-20 | 5806-039-0940 | ND |
| 2017-07-20 | 5806-038-0830 | ND |
| 2017-07-20 | 5806-014-1245 | ND |
| 2017-07-20 | 5806-034-1110 | ND |
| 2017-07-20 | 5806-032-0720 | ND |
| 2017-07-20 | 5806-016-0910 | ND |
| 2019-07-09 | 5806-028-0915 | ND |
| 2019-07-09 | 5806-023-1015 | ND |
| 2019-07-09 | 5806-022-1125 | ND |
| 2019-08-19 | 5806-039-1415 | ND |
| 2019-08-19 | 5806-040-1420 | ND |
| 2019-10-08 | 5806-027-0930 | ND |