1,2,4-Trichlorobenzene
Arizona Water Company - Pinal Valley
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 | 11 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 11 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-05-05 | 4050314-01V | ND |
| 2014-05-05 | 4050312-01V | ND |
| 2014-05-05 | 4050311-01V | ND |
| 2014-05-05 | 4050309-01V | ND |
| 2014-05-05 | 4050308-01 | ND |
| 2014-05-05 | 4050306-01 | ND |
| 2014-05-05 | 4050303-01 | ND |
| 2014-06-10 | 4060913-02 | ND |
| 2014-06-10 | 4060913-01 | ND |
| 2014-06-18 | 4061539-01 | ND |
| 2014-09-03 | 4090304-01V | ND |
| 2015-05-14 | 5051251-01 | ND |
| 2016-04-27 | 6042352-01V | ND |
| 2017-03-13 | 7031063-01 | ND |
| 2017-05-03 | 7050545-01VOC | ND |
| 2017-05-03 | 7050544-01VOC | ND |
| 2017-05-03 | 7050541-01VOC | ND |
| 2017-05-04 | 7050644-01VOC | ND |
| 2017-05-04 | 7050640-01VOC | ND |
| 2017-05-04 | 7050636-01VOC | ND |
| 2017-05-04 | 7050632-01VOC | ND |
| 2017-05-04 | 7050621-01VOC | ND |
| 2017-08-16 | 7081780-01VOC | ND |
| 2017-10-31 | 7110133-01VOC | ND |
| 2018-02-26 | 18B2395-01 VOC | ND |
| 2019-01-22 | 19A2350-01 | ND |