1,2,4-Trichlorobenzene
Paw Blue Mountain Division
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-01-15 | 24407701 | ND |
2014-01-15 | 24407401 | ND |
2014-01-15 | 24407301 | ND |
2015-01-20 | 12325178 | ND |
2015-01-20 | 12325156 | ND |
2016-01-06 | 13792947 | ND |
2016-01-06 | 13792926 | ND |
2017-01-11 | 15563555 | ND |
2017-01-11 | 15563534 | ND |
2017-01-27 | 15563576 | ND |
2018-01-10 | 38160101 | ND |
2019-01-09 | 42498201 | ND |
2019-07-16 | 45238801 | ND |