o-Dichlorobenzene
Verona Water Department
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 | ND | 4 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-03-11 | 4030283-02 | ND |
2014-04-25 | 4040771-04 | ND |
2014-04-25 | 4040771-02 | ND |
2014-08-06 | 4080178-02 | ND |
2014-11-05 | 4110103-03 | ND |
2015-03-09 | 5030204-02 | ND |
2015-04-08 | 5040234-02 | ND |
2015-08-13 | 5080425-02 | ND |
2015-11-06 | 5110241-02 | ND |
2016-03-23 | 6030831-02 | ND |
2016-05-12 | 6050472-02 | ND |
2016-08-03 | 6080165-02 | ND |
2016-12-07 | 6120297-02 | ND |
2017-02-08 | 7020311-02 | ND |
2017-05-08 | 7050318-02 | ND |
2017-08-11 | 7080475-03 | ND |
2017-08-11 | 7080475-01 | ND |
2017-11-30 | 7120012-02 | ND |
2018-02-09 | 8020285-02 | ND |
2019-03-29 | 9031220-02 | ND |
2019-05-30 | 9051313-03 | ND |
2019-08-14 | 9080681-03 | ND |
2019-12-11 | 9120473-03 | ND |