o-Dichlorobenzene
Stratford Waterworks
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 | 5 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-02-19 | 771218 | ND |
2014-02-19 | 771212 | ND |
2014-02-19 | 771216 | ND |
2014-02-19 | 771210 | ND |
2014-02-19 | 771214 | ND |
2015-03-09 | 847084 | ND |
2016-04-05 | 913871 | ND |
2017-08-21 | 1012738 | ND |
2017-08-23 | 1013442 | ND |
2017-08-23 | 1013445 | ND |
2017-08-23 | 1013446 | ND |
2017-08-23 | 1013447 | ND |
2018-09-17 | 1080721 | ND |
2019-07-15 | 1134354 | ND |