1,2,4-Trichlorobenzene
City of La Porte
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 | 1 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 6 | 0 | ND |
2019 | ND | 6 | 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 |
---|---|---|
2014-03-19 | AC47589 | ND |
2015-01-26 | AC77607 | ND |
2015-01-26 | AC77593 | ND |
2015-01-26 | AC77591 | ND |
2015-01-26 | AC77595 | ND |
2015-01-26 | AC77583 | ND |
2015-01-26 | AC77585 | ND |
2016-01-20 | AD18950 | ND |
2016-01-20 | AD18946 | ND |
2016-01-20 | AD18962 | ND |
2016-01-20 | AD18988 | ND |
2016-01-20 | AD18968 | ND |
2016-04-12 | AD32819 | ND |
2017-01-18 | AD65403 | ND |
2017-01-18 | AD65383 | ND |
2017-01-18 | AD65399 | ND |
2017-01-18 | AD65401 | ND |
2017-01-18 | AD65377 | ND |
2017-01-18 | AD65407 | ND |
2018-01-29 | AE11024 | ND |
2018-01-29 | AE10994 | ND |
2018-01-29 | AE11056 | ND |
2018-01-29 | AE10996 | ND |
2018-01-29 | AE11048 | ND |
2018-01-29 | AE11032 | ND |
2019-01-09 | AE49193 | ND |
2019-01-09 | AE49199 | ND |
2019-01-09 | AE49203 | ND |
2019-01-09 | AE49195 | ND |
2019-01-09 | AE49197 | ND |
2019-01-09 | AE49201 | ND |