o-Dichlorobenzene
City of Giddings
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 | 2 | 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 |
---|---|---|
2014-02-11 | AC42063 | ND |
2015-02-09 | AC79710 | ND |
2015-02-09 | AC79718 | ND |
2016-04-12 | AD32839 | ND |
2016-07-26 | AD45687 | ND |
2017-09-05 | AD94743 | ND |
2017-09-05 | AD94759 | ND |
2018-06-14 | AE30046 | ND |
2018-06-14 | AE30044 | ND |
2019-06-12 | AE70353 | ND |
2019-06-12 | AE70359 | ND |