o-Dichlorobenzene
City of Opelousas 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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 4 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 2 | 0 | ND |
2018 | ND | 10 | 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 |
---|---|---|
2014-09-08 | AD96570 | ND |
2014-09-08 | AD96570 | ND |
2014-10-06 | AD98315 | ND |
2014-10-06 | AD98315 | ND |
2015-03-09 | 35178831003 | ND |
2015-03-09 | 35178831001 | ND |
2015-03-09 | 35178831002 | ND |
2015-03-09 | 35178831003 | ND |
2015-03-09 | 35178831005 | ND |
2015-03-09 | 35178831004 | ND |
2015-03-09 | 35178831002 | ND |
2015-03-09 | 35178831001 | ND |
2015-03-09 | 35178831004 | ND |
2015-03-09 | 35178831005 | ND |
2017-09-18 | 35336897005 | ND |
2017-09-18 | 35336897005 | ND |
2018-01-09 | 35367792001 | ND |
2018-01-09 | 35367792005 | ND |
2018-01-09 | 35367792004 | ND |
2018-01-09 | 35367792003 | ND |
2018-01-09 | 35367792002 | ND |
2018-01-09 | 35367792001 | ND |
2018-01-09 | 35367792005 | ND |
2018-01-09 | 35367792004 | ND |
2018-01-09 | 35367792003 | ND |
2018-01-09 | 35367792002 | ND |