o-Dichlorobenzene
City of Lewiston
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 | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-02-25 | V140226039-001 | ND |
2014-06-03 | V140604041-002 | ND |
2014-08-13 | V140814054-004 | ND |
2015-01-21 | V150122025-001 | ND |
2015-04-14 | V150416021-001 | ND |
2015-07-22 | V150723044-003 | ND |
2016-02-09 | V160209050-002 | ND |
2017-03-28 | V170328050-002 | ND |
2017-03-28 | V170328050-001 | ND |
2017-09-19 | V170920029-004 | ND |
2017-09-19 | V170920029-003 | ND |
2018-02-21 | V180221045-001 | ND |
2018-02-22 | V180223004-001 | ND |
2018-12-13 | V181213011-001 | ND |
2018-12-13 | V181213011-002 | ND |
2019-01-24 | V190124017-001 | ND |
2019-04-23 | V190423067-002 | ND |
2019-04-23 | V190423067-001 | ND |
2019-08-14 | V190814075-003 | ND |