o-Dichlorobenzene
Red Oak Ranch Water System
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 | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-06-26 | AC58243 | ND |
2014-06-26 | AC58225 | ND |
2015-03-18 | AC85027 | ND |
2015-03-18 | AC85021 | ND |
2015-04-22 | AC89222 | ND |
2016-06-02 | AD39197 | ND |
2016-06-02 | AD39191 | ND |
2017-07-31 | AD91375 | ND |
2017-07-31 | AD91389 | ND |
2018-07-25 | AE34524 | ND |
2018-07-25 | AE34520 | ND |
2019-08-15 | AE78950 | ND |
2019-08-15 | AE78962 | ND |