o-Dichlorobenzene
Okarche Rural Water District Inc.
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 | 21 | 0 | ND |
2015 | ND | 21 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-24 | 039507.001 | ND |
2014-03-25 | 039953.005 | ND |
2014-03-25 | 039953.004 | ND |
2014-03-25 | 039953.003 | ND |
2014-03-25 | 039953.002 | ND |
2014-03-25 | 039953.001 | ND |
2014-05-15 | 043119.001 | ND |
2014-05-15 | 043119.002 | ND |
2014-05-15 | 043119.003 | ND |
2014-05-15 | 043119.004 | ND |
2014-05-15 | 043119.005 | ND |
2014-12-01 | 049790.005 | ND |
2014-12-01 | 049790.004 | ND |
2014-12-01 | 049790.003 | ND |
2014-12-01 | 049790.002 | ND |
2014-12-01 | 049790.001 | ND |
2014-12-08 | 051648.005 | ND |
2014-12-08 | 051648.004 | ND |
2014-12-08 | 051648.003 | ND |
2014-12-08 | 051648.002 | ND |
2014-12-08 | 051648.001 | ND |
2015-02-04 | 052989.001 | ND |
2015-03-17 | 054546.005 | ND |
2015-03-17 | 054546.004 | ND |
2015-03-17 | 054546.003 | ND |
2015-03-17 | 054546.002 | ND |
2015-03-17 | 054546.001 | ND |
2015-07-09 | 059179.005 | ND |
2015-07-09 | 059179.004 | ND |
2015-07-09 | 059179.003 | ND |
2015-07-09 | 059179.002 | ND |
2015-07-09 | 059179.001 | ND |
2015-09-16 | 062700.005 | ND |
2015-09-16 | 062700.001 | ND |
2015-09-16 | 062700.002 | ND |
2015-09-16 | 062700.003 | ND |
2015-09-16 | 062700.004 | ND |
2015-12-16 | 066320.005 | ND |
2015-12-16 | 066320.004 | ND |
2015-12-16 | 066320.003 | ND |
2015-12-16 | 066320.002 | ND |
2015-12-16 | 066320.001 | ND |
2016-03-23 | SDWA-1015703-00 | ND |
2017-06-22 | SDWA-1166324-03 | ND |