o-Dichlorobenzene
Highridge Water Authority
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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 4 | 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 | 14022960-001 | ND |
2014-02-19 | 14022960-002 | ND |
2015-02-18 | 12465604 | ND |
2015-02-18 | 12465624 | ND |
2016-02-18 | 13934821 | ND |
2016-02-18 | 13934842 | ND |
2017-04-05 | 16027015 | ND |
2017-04-05 | 16027038 | ND |
2018-06-13 | 7054911001 | ND |
2018-06-13 | 7054911002 | ND |
2019-06-12 | 7093386001 | ND |
2019-06-12 | 7093386002 | ND |
2019-07-16 | 7097758001 | ND |
2019-07-16 | 7097758002 | ND |