1,2,4-Trichlorobenzene
Westside Rural Water Supply Corporation
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 3 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2015-07-14 | Q1526983005 | ND |
2015-07-14 | Q1526983003 | ND |
2015-07-14 | Q1526983001 | ND |
2016-11-07 | Q1647711006 | ND |
2016-11-07 | Q1647711012 | ND |
2016-11-07 | Q1647711017 | ND |
2016-11-07 | Q1647711009 | ND |
2017-01-17 | Q1701920022 | ND |
2017-01-17 | Q1701920010 | ND |
2017-01-17 | Q1701920012 | ND |
2017-01-17 | Q1701920009 | ND |
2017-04-19 | Q1716217002 | ND |
2017-08-08 | Q1733371001 | ND |
2018-10-30 | Q1843596007 | ND |
2018-10-30 | Q1843596006 | ND |
2018-10-30 | Q1843596003 | ND |
2018-10-30 | Q1843596002 | ND |
2019-05-07 | Q1920849002 | ND |
2019-05-07 | Q1920849008 | ND |
2019-05-07 | Q1920849006 | ND |
2019-05-07 | Q1920849004 | ND |