o-Dichlorobenzene
Wickson Creek SUD
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 | N/A | 0 | 0 | N/A |
2015 | ND | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2015-03-03 | AC82575 | ND |
2015-03-03 | AC82547 | ND |
2015-09-11 | AD06936 | ND |
2015-11-09 | AD13029 | ND |
2016-03-15 | AD28844 | ND |
2017-02-01 | AD68131 | ND |
2018-05-08 | AE25599 | ND |
2018-05-08 | AE25597 | ND |
2019-01-18 | AE50573 | ND |
2019-02-21 | AE55310 | ND |
2019-04-10 | AE61824 | ND |
2019-07-17 | AE74858 | ND |
2019-10-02 | AE85536 | ND |