o-Dichlorobenzene
City of Hallettsville
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 | 4 | 0 | ND |
2016 | ND | 4 | 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 |
---|---|---|
2014-01-14 | AC38768 | ND |
2014-01-14 | AC38762 | ND |
2014-10-27 | AC70534 | ND |
2015-03-26 | AC86249 | ND |
2015-03-26 | AC86303 | ND |
2015-03-26 | AC86299 | ND |
2015-06-09 | AC95146 | ND |
2016-03-08 | AD27589 | ND |
2016-03-08 | AD27591 | ND |
2016-03-08 | AD27571 | ND |
2016-03-18 | AD29919 | ND |
2017-12-06 | AE06982 | ND |
2017-12-06 | AE06984 | ND |
2017-12-06 | AE06986 | ND |
2018-09-19 | AE40775 | ND |
2018-09-19 | AE40773 | ND |
2018-09-19 | AE40759 | ND |
2019-08-22 | AE80240 | ND |
2019-08-22 | AE80246 | ND |
2019-08-22 | AE80242 | ND |