1,2,4-Trichlorobenzene
Auburn Water Works
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 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-03-04 | 80403042014-4 | ND |
| 2014-06-04 | 80406042014-2 | ND |
| 2014-06-04 | 80406042014-3 | ND |
| 2014-08-19 | 80408192014-3 | ND |
| 2014-10-16 | 80410162014-1 | ND |
| 2015-03-18 | 80403182015-1 | ND |
| 2015-06-23 | 80406232015-1 | ND |
| 2015-09-03 | 80409032015-2V | ND |
| 2015-10-21 | 80410212015-1V | ND |
| 2016-04-06 | 804-040616-VOC-2 | ND |
| 2016-04-06 | 804-040616-VOC-1 | ND |
| 2017-05-31 | 804-053117-VOC-1 | ND |
| 2017-05-31 | 804-053171-VOC-2 | ND |
| 2018-04-18 | 178083-01VOC | ND |
| 2018-04-18 | 178084-01VOC | ND |
| 2019-05-23 | 191127-03VOC | ND |
| 2019-05-23 | 191127-01VOC | ND |