o-Dichlorobenzene
City of Broussard Highway 90 Water System
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 | 24 | 0 | ND |
2015 | 0.250 ppb | 4 | 2 | ND - 0.500 ppb |
2016 | ND | 12 | 0 | ND |
2017 | ND | 6 | 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 |
---|---|---|
2014-02-17 | AD89082 | ND |
2014-02-17 | AD89082 | ND |
2014-03-24 | AD89953 | ND |
2014-03-24 | AD89952 | ND |
2014-03-24 | AD89953 | ND |
2014-03-24 | AD89952 | ND |
2014-05-05 | AD91181 | ND |
2014-05-05 | AD91179 | ND |
2014-05-05 | AD91180 | ND |
2014-05-05 | AD91181 | ND |
2014-05-05 | AD91180 | ND |
2014-05-05 | AD91179 | ND |
2014-09-15 | AD96936 | ND |
2014-09-15 | AD96937 | ND |
2014-09-15 | AD96938 | ND |
2014-09-15 | AD96936 | ND |
2014-09-15 | AD96937 | ND |
2014-09-15 | AD96938 | ND |
2014-11-17 | AD99809 | ND |
2014-11-17 | AD99810 | ND |
2014-11-17 | AD99811 | ND |
2014-11-17 | AD99809 | ND |
2014-11-17 | AD99810 | ND |
2014-11-17 | AD99811 | ND |
2015-11-30 | 35218949002 | ND |
2015-11-30 | 35218949001 | 0.500 ppb |
2015-11-30 | 35218949002 | ND |
2015-11-30 | 35218949001 | 0.500 ppb |
2016-06-07 | 35248530008 | ND |
2016-06-07 | 35248530006 | ND |
2016-06-07 | 35248530007 | ND |
2016-06-07 | 35248530006 | ND |
2016-06-07 | 35248530007 | ND |
2016-06-07 | 35248530008 | ND |
2016-11-01 | 35274958005 | ND |
2016-11-01 | 35274958005 | ND |
2016-11-01 | 35274958004 | ND |
2016-11-01 | 35274958003 | ND |
2016-11-01 | 35274958003 | ND |
2016-11-01 | 35274958004 | ND |
2017-03-03 | 35299127005 | ND |
2017-03-03 | 35299127004 | ND |
2017-03-03 | 35299127003 | ND |
2017-03-03 | 35299127003 | ND |
2017-03-03 | 35299127004 | ND |
2017-03-03 | 35299127005 | ND |
2018-06-12 | 35398353001 | ND |
2018-06-12 | 35398353002 | ND |
2018-06-12 | 35398353001 | ND |
2018-06-12 | 35398353002 | ND |