o-Dichlorobenzene
Washington County Railroad
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 |
---|---|---|
2014-04-10 | AC50146 | ND |
2014-04-10 | AC50136 | ND |
2015-01-28 | AC78160 | ND |
2015-01-28 | AC78190 | ND |
2015-05-06 | AC90784 | ND |
2016-10-31 | AD55530 | ND |
2016-10-31 | AD55528 | ND |
2017-07-13 | AD89331 | ND |
2017-07-13 | AD89333 | ND |
2018-05-22 | AE27278 | ND |
2018-05-22 | AE27288 | ND |
2019-10-15 | AE86635 | ND |
2019-10-15 | AE86641 | ND |