o-Dichlorobenzene
Ellsworth 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 | 6 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 3 | 0 | ND |
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 |
---|---|---|
2014-01-25 | 768450 | ND |
2014-06-24 | 798863 | ND |
2014-08-06 | 808639 | ND |
2014-08-07 | 809093 | ND |
2014-08-27 | 813680 | ND |
2014-11-06 | 830366 | ND |
2015-03-11 | 847949 | ND |
2015-04-14 | 854384 | ND |
2015-07-13 | 870339 | ND |
2016-05-31 | 923556 | ND |
2017-03-14 | 977578 | ND |
2017-05-30 | 994072 | ND |
2017-05-30 | 994069 | ND |
2018-05-30 | 1058049 | ND |
2018-05-30 | 1058050 | ND |
2018-05-30 | 1058048 | ND |
2019-06-04 | 1125125 | ND |
2019-06-04 | 1125128 | ND |
2019-06-04 | 1125124 | ND |