o-Dichlorobenzene
Liberty Water Rio Rico
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 | 2 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-02-12 | 14B0450-02(4V) | ND |
2014-02-12 | 14B0450-01(4V) | ND |
2015-02-11 | 15B0485-02(4V) | ND |
2015-02-11 | 15B0485-01(4V) | ND |
2016-04-22 | 16D0684-02(4V) | ND |
2016-04-22 | 16D0684-06(4V) | ND |
2016-04-22 | 16D0684-05(4V) | ND |
2016-04-22 | 16D0684-04(4V) | ND |
2016-04-22 | 16D0684-03(4V) | ND |
2016-04-22 | 16D0684-01(4V) | ND |
2016-07-20 | 16G0684-01(4V) | ND |
2017-04-04 | 17D0194-03(4V) | ND |
2017-04-04 | 17D0194-01(4V) | ND |
2017-04-13 | 17D0493-01(4V) | ND |
2017-07-25 | 17G0714-01(4V) | ND |
2018-05-15 | 18E0429-01(4V) | ND |
2019-04-09 | 19D0334-01(4V) | ND |