o-Dichlorobenzene
Harris County MUD 165
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 | 2 | 0 | ND |
2015 | ND | 7 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 6 | 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 |
---|---|---|
2014-07-16 | AC59847 | ND |
2014-07-16 | AC59843 | ND |
2015-05-27 | AC93425 | ND |
2015-05-27 | AC93397 | ND |
2015-05-27 | AC93395 | ND |
2015-09-09 | AD06257 | ND |
2015-09-09 | AD06255 | ND |
2015-11-10 | AD13188 | ND |
2015-11-10 | AD13186 | ND |
2016-03-21 | AD29673 | ND |
2016-03-21 | AD29633 | ND |
2016-03-21 | AD29639 | ND |
2017-05-04 | AD82785 | ND |
2017-05-04 | AD82787 | ND |
2017-05-04 | AD82793 | ND |
2018-06-07 | AE29019 | ND |
2018-06-07 | AE29017 | ND |
2018-06-07 | AE29021 | ND |
2018-06-07 | AE29023 | ND |
2018-08-24 | AE38544 | ND |
2018-11-30 | AE47612 | ND |
2019-01-31 | AE52445 | ND |
2019-01-31 | AE52443 | ND |
2019-01-31 | AE52449 | ND |
2019-01-31 | AE52451 | ND |