o-Dichlorobenzene
Northwest Park MUD
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 3 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2015-09-15 | AD07117 | ND |
2015-09-15 | AD07121 | ND |
2015-09-15 | AD07133 | ND |
2016-08-03 | AD46879 | ND |
2016-08-03 | AD46881 | ND |
2016-08-03 | AD46883 | ND |
2016-11-15 | AD58081 | ND |
2017-04-28 | AD81834 | ND |
2017-04-28 | AD81840 | ND |
2017-04-28 | AD81862 | ND |
2017-04-28 | AD81854 | ND |
2018-06-07 | AE29031 | ND |
2018-06-07 | AE29025 | ND |
2018-06-07 | AE29027 | ND |
2019-07-25 | AE76005 | ND |
2019-07-25 | AE76007 | ND |
2019-12-19 | AE92875 | ND |