o-Dichlorobenzene
Westchester Joint Water Works
o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.
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 | 1 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 600 ppb
The EWG Health Guideline of 600 ppb for o-dichlorobenzene 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 harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 600 ppb
The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-03-17 | AQ04609POC | ND |
2014-10-23 | AQ22037POC | ND |
2014-12-01 | AQ2601POC | ND |
2015-10-27 | AR23195POC | ND |
2015-10-27 | AR23193POC | ND |
2015-10-27 | AR23194POC | ND |
2016-09-06 | AS19150POC WJWW | ND |
2017-11-13 | AT23824POC-WJWW | ND |
2017-11-13 | AT23822POC-WJWW | ND |
2018-02-21 | AU03660POCS | ND |
2018-09-24 | AU20757WJWWPOCS | ND |
2018-10-24 | AU23144POCS | ND |
2019-10-21 | AV22258POCS | ND |
2019-11-12 | AV23850WJWW-POCS | ND |