o-Dichlorobenzene
School Hill Association Inc.
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 | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-06-02 | E406031-3VOC | ND |
2015-05-18 | E505F74-3VOC | ND |
2015-09-17 | E509K17-5VOC | ND |
2015-09-17 | E509K17-4VOC | ND |
2015-09-17 | E509K17-6VOC | ND |
2016-06-06 | E606510-3VOC | ND |
2017-06-22 | D7F2109-03VOC | ND |
2018-05-18 | D8E1723-03VOC | ND |
2019-03-25 | CC74889 | ND |
2019-03-25 | CC74889R | ND |