o-Dichlorobenzene
Ridgecrest North Subdivision
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 | N/A | 0 | 0 | N/A |
2015 | ND | 3 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 6 | 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 |
---|---|---|
2015-02-09 | 5021938-01 | ND |
2015-02-09 | 5021938-02 | ND |
2015-10-26 | 5104297-01 | ND |
2018-03-30 | 1803K47-001A | ND |
2018-03-30 | 1803K47-003A | ND |
2018-06-29 | 1806M50-001A | ND |
2018-06-29 | 1806M50-003A | ND |
2018-10-23 | 1810I52-001A | ND |
2018-10-23 | 1810I52-003A | ND |
2019-02-07 | 1902526-001A | ND |
2019-05-22 | 1905I90-001 | ND |
2019-07-23 | 1907L06-001A | ND |