o-Dichlorobenzene
Clearwater
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 | 1 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-06-17 | 14F1226-01 | ND |
2015-08-04 | 15H0116-01 | ND |
2015-08-04 | 15H0116-02 | ND |
2015-08-04 | 15H0120-01 | ND |
2016-04-21 | 3435234 | ND |
2016-04-21 | 3435258 | ND |
2016-04-21 | 3435266 | ND |
2017-02-27 | 17B1349-01 | ND |
2018-03-20 | 18C0824-02 | ND |
2018-03-20 | 18C0827-01 | ND |
2019-12-03 | 19L0090-01 | ND |