o-Dichlorobenzene
Waialee-sunset Beach
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 | 4 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 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 |
---|---|---|
2014-02-19 | 201402210361 | ND |
2014-02-20 | 201402220088 | ND |
2014-07-21 | 201407230664 | ND |
2014-07-21 | 201407230666 | ND |
2015-01-29 | 201501300117 | ND |
2015-04-28 | 201504300075 | ND |
2016-01-13 | ND | |
2016-07-05 | ND | |
2017-01-04 | ND | |
2017-02-23 | ND | |
2017-10-10 | ND | |
2017-10-31 | ND | |
2018-01-09 | 201712280239 | ND |
2018-04-25 | 201804300496 | ND |
2018-08-13 | 201808160452 | ND |
2019-02-19 | 201902210382 | ND |