o-Dichlorobenzene
Indiana American Water - Richmond
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 | 3 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 3 | 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 |
---|---|---|
2014-04-22 | 252191RV-1402 | ND |
2014-04-22 | 252196RV-1402 | ND |
2014-04-22 | 252201RV-1402 | ND |
2015-04-07 | 28646301RV-1502 | ND |
2015-04-07 | 28646801RV-1502 | ND |
2016-04-11 | 317319RV-1602 | ND |
2016-04-11 | 317324RV-1602 | ND |
2017-04-04 | 35194501RV-1702 | ND |
2017-04-04 | 35195001RV-1702 | ND |
2017-04-04 | 35195401RV-1702 | ND |
2017-05-02 | 35710901RV-1702 | ND |
2017-07-17 | 361588RV-1703 | ND |
2017-10-03 | 372170RV-1704 | ND |
2019-04-02 | 43622301RV-1902 | ND |
2019-04-02 | 43622401RV-1902 | ND |
2019-04-02 | 43622901RV-1902 | ND |