o-Dichlorobenzene
South Berwick Water District
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 |
---|---|---|
2014-05-01 | ND | |
2014-05-01 | ND | |
2014-05-01 | ND | |
2014-05-01 | ND | |
2015-05-27 | K006684001 | ND |
2015-05-27 | K006683001 | ND |
2015-05-27 | K006682001 | ND |
2015-05-27 | K006681001 | ND |
2016-07-28 | L010667001 | ND |
2016-07-28 | L010666001 | ND |
2016-07-28 | L010665001 | ND |
2016-07-28 | L010664001 | ND |
2017-06-06 | 1702253-01 | ND |
2017-06-06 | 1702250-01 | ND |
2017-06-06 | 1702251-01 | ND |
2017-06-06 | 1702252-01 | ND |
2018-06-27 | 1804719-01 | ND |
2018-06-27 | 1804720-01 | ND |
2018-06-27 | 1804721-01 | ND |
2018-06-27 | 1804722-01 | ND |
2019-06-06 | 1904422-01 | ND |
2019-06-06 | 1904421-01 | ND |
2019-06-06 | 1904423-01 | ND |
2019-06-06 | 1904420-01 | ND |