o-Dichlorobenzene
Rockbridge S/d
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 | 3 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-03-11 | 8567-031114-E02V | ND |
2014-06-04 | 8567-060414-E02V | ND |
2014-09-16 | 8567-091614-E02V | ND |
2014-11-10 | 8567-111014-E02V | ND |
2015-03-02 | ND | |
2015-05-05 | ND | |
2015-08-18 | ND | |
2015-10-27 | ND | |
2016-01-13 | 072-16 | ND |
2016-04-05 | 407-16 | ND |
2016-07-06 | 814-16 | ND |
2016-10-04 | 1468-16 | ND |
2017-01-03 | 030-17 | ND |
2017-04-04 | 479-17 | ND |
2017-07-05 | 963-17 | ND |
2018-07-10 | 1254-18 | ND |