1,2,4-Trichlorobenzene
Galveston County WCID 1
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 | 3 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-06-03 | AC55813 | ND |
2014-06-03 | AC55811 | ND |
2014-06-03 | AC55805 | ND |
2015-01-15 | AC76456 | ND |
2015-01-15 | AC76466 | ND |
2015-01-15 | AC76462 | ND |
2016-01-26 | AD20090 | ND |
2016-01-26 | AD20084 | ND |
2016-06-27 | AD41911 | ND |
2016-09-29 | AD52074 | ND |
2016-11-29 | AD59385 | ND |
2017-01-26 | AD67185 | ND |
2017-01-26 | AD67177 | ND |
2017-01-26 | AD67201 | ND |
2017-04-25 | AD81207 | ND |
2018-02-26 | AE15475 | ND |
2018-02-26 | AE15473 | ND |
2018-02-26 | AE15471 | ND |
2019-01-31 | AE52457 | ND |
2019-01-31 | AE52453 | ND |
2019-06-21 | AE71729 | ND |