1,2,4-Trichlorobenzene
Woodstock
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 15 | 0 | ND |
| 2019 | ND | 10 | 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 |
|---|---|---|
| 2018-04-10 | AJ87090 | ND |
| 2018-04-10 | AJ87089 | ND |
| 2018-04-10 | AJ87088 | ND |
| 2018-04-10 | AJ87087 | ND |
| 2018-04-10 | AJ87086 | ND |
| 2018-07-10 | AJ93446 | ND |
| 2018-07-10 | AJ93445 | ND |
| 2018-07-10 | AJ93444 | ND |
| 2018-07-10 | AJ93443 | ND |
| 2018-07-10 | AJ93442 | ND |
| 2018-12-18 | AK08331 | ND |
| 2018-12-18 | AK08333 | ND |
| 2018-12-18 | AK08332 | ND |
| 2018-12-18 | AK08330 | ND |
| 2018-12-18 | AK08329 | ND |
| 2019-01-08 | AK09031 | ND |
| 2019-01-08 | AK09030 | ND |
| 2019-01-08 | AK09029 | ND |
| 2019-01-08 | AK09028 | ND |
| 2019-01-08 | AK09027 | ND |
| 2019-04-15 | AK15169 | ND |
| 2019-04-15 | AK15173 | ND |
| 2019-04-15 | AK15172 | ND |
| 2019-04-15 | AK15171 | ND |
| 2019-04-15 | AK15170 | ND |