o-Dichlorobenzene
Metropolitan Water District of So. Cal.
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 | 5 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 7 | 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 |
---|---|---|
2014-10-07 | 4412-026-1000 | ND |
2014-10-07 | 4412-020-1120 | ND |
2014-10-07 | 4412-013-1020 | ND |
2014-10-07 | 4412-005-0840 | ND |
2014-10-07 | 4412-003-0819 | ND |
2015-01-06 | 4412-020-1055 | ND |
2015-01-06 | 4412-026-0820 | ND |
2015-01-06 | 4412-003-0810 | ND |
2015-01-06 | 4412-013-1015 | ND |
2015-01-06 | 4412-005-0845 | ND |
2016-04-04 | 4412-003-1015 | ND |
2016-04-04 | 4412-026-0920 | ND |
2016-04-04 | 4412-005-0730 | ND |
2016-04-04 | 4412-020-1030 | ND |
2016-04-04 | 4412-013-1020 | ND |
2017-07-31 | 4412-003-1000 | ND |
2017-07-31 | 4412-005-0905 | ND |
2017-07-31 | 4412-013-0900 | ND |
2017-08-01 | 4412-026-1110 | ND |
2017-08-02 | 4412-020-0835 | ND |
2018-10-02 | 4412-013-1010 | ND |
2018-10-02 | 4412-020-1020 | ND |
2018-10-02 | 4412-003-1046 | ND |
2018-10-02 | 4412-005-0742 | ND |
2018-10-02 | 4412-026-0950 | ND |
2019-01-02 | 4412-003-0910 | ND |
2019-01-02 | 4412-020-1040 | ND |
2019-01-02 | 4412-026-0737 | ND |
2019-01-02 | 4412-005-0715 | ND |
2019-01-14 | 4412-013-0825 | ND |
2019-10-21 | 9588-005-0745 | ND |
2019-10-22 | 9588-020-1315 | ND |