o-Dichlorobenzene
Verona Waterworks
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 | 9 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-03-17 | 123462001 | ND |
2014-06-10 | 138119001 | ND |
2014-08-20 | 152641001 | ND |
2014-09-24 | 159456001 | ND |
2014-09-24 | 159458001 | ND |
2014-09-24 | 159453001 | ND |
2014-09-24 | 159451001 | ND |
2014-10-07 | 162051001 | ND |
2014-12-08 | 171343001 | ND |
2015-08-17 | 211952001 | ND |
2015-08-17 | 211954001 | ND |
2016-08-23 | 273571001 | ND |
2016-08-23 | 273555001 | ND |
2017-08-28 | 338309001 | ND |
2017-08-28 | 338312001 | ND |
2017-08-28 | 338307001 | ND |
2017-08-28 | 338306001 | ND |
2017-08-28 | 338311001 | ND |
2017-08-29 | 338627001 | ND |
2018-08-29 | 404005001 | ND |
2019-08-27 | 466100001 | ND |