o-Dichlorobenzene
Orleans Water Department
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 3 | 0 | ND |
2015 | ND | 12 | 0 | ND |
2016 | ND | 10 | 0 | ND |
2017 | ND | 4 | 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 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 | Result |
---|---|
2014-05-14 | ND |
2014-05-14 | ND |
2014-05-14 | ND |
2015-06-10 | ND |
2015-06-10 | ND |
2015-06-10 | ND |
2015-08-12 | ND |
2015-08-12 | ND |
2015-08-12 | ND |
2015-10-01 | ND |
2015-10-14 | ND |
2015-10-14 | ND |
2015-10-14 | ND |
2015-10-14 | ND |
2015-10-14 | ND |
2016-02-10 | ND |
2016-02-10 | ND |
2016-02-10 | ND |
2016-06-08 | ND |
2016-06-08 | ND |
2016-06-08 | ND |
2016-08-10 | ND |
2016-08-10 | ND |
2016-08-10 | ND |
2016-11-16 | ND |
2017-01-31 | ND |
2017-05-23 | ND |
2017-05-23 | ND |
2017-05-23 | ND |
2018-06-13 | ND |
2018-06-13 | ND |
2018-06-13 | ND |
2019-05-15 | ND |
2019-05-15 | ND |
2019-05-15 | ND |