o-Dichlorobenzene
Keeler Field
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 | 5 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-01-14 | 1.400146-POC | ND |
2014-04-15 | 1.401241 | ND |
2014-08-06 | 1.402633 | ND |
2014-11-06 | 1.403925 | ND |
2015-02-18 | 1.500400-POC | ND |
2015-02-18 | 1.500401-POC | ND |
2015-04-27 | 1.500953 | ND |
2015-08-03 | 1.502088 | ND |
2015-11-03 | 420-97027-2 | ND |
2019-08-15 | 420-158790-2POCS | ND |
2019-08-15 | 420-158790-1POCS | ND |