1,2,4-Trichlorobenzene
Alabaster Water Board
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 | 3 | 0 | ND |
| 2015 | ND | 2 | 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 |
|---|---|---|
| 2014-02-25 | 140225028-2 | ND |
| 2014-02-25 | 140225028-1 | ND |
| 2014-08-26 | 140826012-1 | ND |
| 2015-03-19 | 150319025-1 | ND |
| 2015-09-22 | 150922016-1 | ND |
| 2016-03-22 | 160322012-1 | ND |
| 2016-08-23 | 160823019-1 | ND |
| 2017-03-17 | 170317018-1 | ND |
| 2017-09-01 | 170901029-1 | ND |
| 2018-01-22 | 180122004-1 | ND |
| 2018-08-30 | 18080773-001A | ND |
| 2019-02-04 | 19020037-001A | ND |
| 2019-07-17 | 20113347001_IVOC | ND |