1,2,4-Trichlorobenzene
City of Paint Rock
NOTE: City of Paint Rock purchases water from Millersview-doole Water Supply Corporation which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Millersview-doole Water Supply Corporation.
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 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
NOTE: City of Paint Rock purchases water from Millersview-doole Water Supply Corporation which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Millersview-doole Water Supply Corporation.
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-27 | AC45091 | ND |
| 2015-05-19 | AC92583 | ND |
| 2015-05-19 | AC92575 | ND |
| 2016-02-17 | AD24301 | ND |
| 2016-02-17 | AD24303 | ND |
| 2017-03-01 | Q1708974002 | ND |
| 2017-05-17 | Q1720172002 | ND |
| 2018-02-22 | Q1807532003 | ND |
| 2018-05-15 | Q1819705008 | ND |
| 2019-03-07 | Q1909828003 | ND |
| 2019-05-08 | Q1922600002 | ND |