o-Dichlorobenzene
Fitchburg Utility 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 | 6 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-03-04 | 121708001 | ND |
2014-08-19 | 152080001 | ND |
2014-08-19 | 152081001 | ND |
2014-08-19 | 152086001 | ND |
2014-08-19 | 152071001 | ND |
2014-08-19 | 152068001 | ND |
2015-07-30 | 35199919001-1 | ND |
2015-07-30 | 35199919002-1 | ND |
2015-07-30 | 35199919003-1 | ND |
2015-09-09 | 35206535001-1 | ND |
2016-08-17 | 939978 | ND |
2016-08-17 | 939984 | ND |
2016-08-17 | 939982 | ND |
2016-08-17 | 939980 | ND |
2017-07-19 | 1005313 | ND |
2017-07-19 | 1005316 | ND |
2017-07-19 | 1005319 | ND |
2017-07-19 | 1005322 | ND |
2018-07-26 | 1069933 | ND |
2019-07-24 | 1136903 | ND |