1,2,4-Trichlorobenzene
Grayling Water System
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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2016-01-06 | VO*1160115001 | ND |
2016-10-18 | VO*280-89971-1 | ND |
2017-02-08 | VO*440-176497-1 | ND |
2017-07-31 | VO*3747962 | ND |
2017-08-08 | VO*3754552 | ND |
2018-03-27 | VO*3900375 | ND |
2018-05-15 | VO*3940361 | ND |
2018-07-18 | VO*680-155584-3 | ND |
2018-10-25 | VO*4104539 | ND |
2019-07-29 | 440-247039-2 | ND |