o-Dichlorobenzene
Deforest Waterworks
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 | 7 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 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 |
---|---|---|
2014-06-24 | 140960001 | ND |
2014-06-24 | 140958001 | ND |
2014-06-24 | 140959001 | ND |
2014-07-23 | 147208001 | ND |
2014-08-12 | 150736001 | ND |
2014-09-10 | 156235001 | ND |
2014-10-15 | 163748001 | ND |
2015-02-17 | 179800001 | ND |
2015-02-17 | 179800003 | ND |
2015-09-15 | 217481001 | ND |
2016-04-18 | 249026001 | ND |
2016-04-18 | 249027001 | ND |
2016-09-26 | 279964001 | ND |
2017-06-20 | 999039 | ND |
2017-06-20 | 999036 | ND |
2018-03-13 | 1044929 | ND |
2018-03-13 | 1044928 | ND |
2018-08-29 | 404007001 | ND |
2019-06-19 | 1129331 | ND |
2019-06-19 | 1129330 | ND |