o-Dichlorobenzene
Assumption Parish Waterworks District 1
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 | 8 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-02-03 | AD88681 | ND |
2014-02-03 | AD88681 | ND |
2014-04-14 | AD90510 | ND |
2014-04-14 | AD90510 | ND |
2014-07-21 | AD93831 | ND |
2014-07-21 | AD93831 | ND |
2014-10-06 | AD98268 | ND |
2014-10-06 | AD98268 | ND |
2015-03-31 | 35181766003 | ND |
2015-03-31 | 35181766003 | ND |
2016-03-15 | 35234393001 | ND |
2016-03-15 | 35234393001 | ND |
2017-01-31 | 35292293003 | ND |
2017-01-31 | 35292293003 | ND |
2018-01-25 | 35370415008 | ND |
2018-01-25 | 35370415008 | ND |
2019-01-29 | 35445085001 | ND |
2019-01-29 | 35445085001 | ND |