1,2,4-Trichlorobenzene
Berkley Beach - Ebb Tide Beach
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 | 5 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 3 | 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 |
---|---|---|
2014-02-10 | 25028501 | ND |
2014-02-10 | 25028401 | ND |
2014-02-10 | 25028301 | ND |
2014-09-17 | 27051301 | ND |
2014-09-17 | 27051201 | ND |
2015-04-14 | 00001_EXP-AMERIC | ND |
2015-04-14 | 00001_EXP-AMERIC | ND |
2015-04-14 | 00001_EXP-AMERIC | ND |
2015-07-21 | 460274-AMERICAN | ND |
2015-07-21 | 460274-AMERICAN | ND |
2015-07-21 | 460274-AMERICAN | ND |
2016-01-11 | 31010101 | ND |
2016-01-11 | 31009901 | ND |
2016-01-11 | 31009701 | ND |
2016-05-17 | 32049901 | ND |
2016-05-17 | 32049701 | ND |
2016-05-17 | 32049801 | ND |
2017-01-23 | 34238601 | ND |
2017-01-23 | 34238801 | ND |
2017-02-21 | 34238401 | ND |
2018-01-16 | 38194501 | ND |
2018-01-16 | 38194701 | ND |
2018-01-16 | 38194901 | ND |
2019-01-28 | 42533801-VOC | ND |
2019-01-28 | 42534001-VOC | ND |
2019-01-28 | 42534201-VOC | ND |