o-Dichlorobenzene
Norphlet
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 | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-08-04 | 14219009001 | ND |
2015-07-15 | 15197006701 | ND |
2016-01-12 | 16015007301 | ND |
2016-09-07 | 16252008401 | ND |
2017-08-02 | 17215006501 | ND |
2017-11-01 | 17306001201 | ND |
2018-02-26 | 18060002201 | ND |
2018-04-30 | 18123005501 | ND |
2018-07-10 | 18193006501 | ND |
2018-10-29 | 18305001801 | ND |
2019-02-19 | 19052004401 | ND |
2019-02-19 | 19052004301 | ND |
2019-07-15 | 19198002501 | ND |