o-Dichlorobenzene
Coal Valley
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 | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 3 | 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 |
---|---|---|
2014-05-12 | SE40517-01_01 | ND |
2014-05-27 | SE41211-01_01 | ND |
2015-05-04 | SE50079-01_01 | ND |
2015-07-13 | SG50693-01_01 | ND |
2015-11-04 | SK50224-01_01 | ND |
2016-02-09 | 16B0344-01_01 | ND |
2016-05-18 | 16E0793-01_01 | ND |
2016-05-18 | 16E0793-02_01 | ND |
2016-07-20 | 16G0971-01_01 | ND |
2016-11-21 | 16K0672-01_01 | ND |
2017-01-03 | 17A0025-01_01 | ND |
2017-04-10 | 17D0302-02_01 | ND |
2017-04-10 | 17D0302-01_01 | ND |
2017-07-17 | 17G0707-01_01 | ND |
2017-10-02 | 17J0043-01_01 | ND |
2018-03-27 | 18C0598-01_03 | ND |
2018-04-04 | 18D0149-01_01 | ND |
2018-10-10 | 18J0383-01_01 | ND |
2019-05-13 | 19E0449-01 | ND |
2019-10-28 | 19J0977-01 | ND |