o-Dichlorobenzene
Cedar Hills Water Association
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 | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-03-21 | G14030536-001D | ND |
2014-11-20 | G14110327-001 V | ND |
2015-03-18 | G15030402-001F | ND |
2015-05-12 | G15050230-001C | ND |
2015-09-22 | G15090429-001C | ND |
2015-12-01 | G15120003-001C | ND |
2016-12-19 | G16120265-001A | ND |
2017-02-27 | G17020404-001F | ND |
2017-02-27 | G17020405-001C | ND |
2018-10-03 | G18100105-001A | ND |