o-Dichlorobenzene
SBNDO County Service Area 70J
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 | 5 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 1 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-03 | 3761-001-1130 | ND |
2014-02-03 | 3761-002-1030 | ND |
2014-02-03 | 3761-003-0930 | ND |
2014-02-03 | 3761-005-1345 | ND |
2014-02-04 | 3761-004-1300 | ND |
2015-01-06 | 3761-002-1350 | ND |
2015-01-06 | 3761-003-1425 | ND |
2015-01-06 | 3761-005-1210 | ND |
2015-07-29 | 3761-004-1000 | ND |
2017-07-26 | 3761-001-1300 | ND |
2018-07-03 | 3761-002-1130 | ND |
2018-07-03 | 3761-003-1100 | ND |
2018-07-03 | 3761-004-1200 | ND |
2018-07-03 | 3761-005-0945 | ND |