o-Dichlorobenzene
Bristol 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 |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 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 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 |
---|---|---|
2014-01-10 | E401597-2VOC | ND |
2014-01-10 | E401597-3VOC | ND |
2014-01-10 | E401597-4VOC | ND |
2014-01-10 | E401597-1VOC | ND |
2015-03-09 | E503529-1VOC | ND |
2015-03-09 | E503529-4VOC | ND |
2015-03-09 | E503529-3VOC | ND |
2015-03-09 | E503529-2VOC | ND |
2016-03-11 | E603B92-1VOC | ND |
2016-03-11 | E603B92-4VOC | ND |
2016-03-11 | E603B92-3VOC | ND |
2016-03-11 | E603B92-2VOC | ND |
2017-05-04 | D7E0514-01VOC | ND |
2017-05-04 | D7E0514-02VOC | ND |
2017-05-04 | D7E0514-03VOC | ND |
2017-05-04 | D7E0514-04VOC | ND |
2018-01-10 | D8A0568-01VOC | ND |
2018-01-10 | D8A0568-04VOC | ND |
2018-01-10 | D8A0568-03VOC | ND |
2018-01-10 | D8A0568-02VOC | ND |
2019-10-28 | D9J2584-01VOC | ND |
2019-10-28 | D9J2584-04VOC | ND |
2019-10-28 | D9J2584-03VOC | ND |
2019-10-28 | D9J2584-02VOC | ND |