o-Dichlorobenzene
Ridgebrook Bluff 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 | 2 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-01-31 | C316269-01 | ND |
2014-03-17 | C316267-01 | ND |
2015-01-22 | ND | |
2015-01-22 | ND | |
2015-05-07 | ND | |
2016-02-02 | C516079-01 | ND |
2017-01-31 | CZ18910-01 | ND |
2018-01-16 | CA18423-01 | ND |
2018-04-11 | CB03473-01 | ND |
2018-04-11 | CB03473-03 | ND |
2018-08-21 | CB08227-01 | ND |
2018-10-23 | CB14402-01 | ND |
2019-01-23 | CB18898-01 | ND |
2019-05-07 | CC04281-01RE1 | ND |