o-Dichlorobenzene
Bridgewater 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 | 5 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 5 | 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 | Result |
---|---|
2014-06-11 | ND |
2014-07-15 | ND |
2014-07-15 | ND |
2014-07-15 | ND |
2014-10-14 | ND |
2015-07-02 | ND |
2015-07-02 | ND |
2015-07-07 | ND |
2015-07-07 | ND |
2015-10-07 | ND |
2015-10-08 | ND |
2016-01-12 | ND |
2016-07-18 | ND |
2016-07-18 | ND |
2016-07-19 | ND |
2016-10-04 | ND |
2017-07-10 | ND |
2017-07-10 | ND |
2017-09-28 | ND |
2017-10-13 | ND |
2018-07-17 | ND |
2018-07-17 | ND |
2018-07-17 | ND |
2018-10-25 | ND |
2019-09-23 | ND |
2019-09-23 | ND |
2019-09-23 | ND |
2019-12-18 | ND |