o-Dichlorobenzene
East Hempfield Water Authority
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 | 7 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 13 | 0 | ND |
2018 | ND | 5 | 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 |
---|---|---|
2014-09-30 | 14032956-01 | ND |
2014-09-30 | 14032956-02 | ND |
2014-09-30 | 14032956-03 | ND |
2014-09-30 | 14032956-04 | ND |
2014-12-29 | 14122146-01 | ND |
2014-12-29 | 14122146-02 | ND |
2014-12-29 | 14122146-03 | ND |
2015-09-15 | 13360706 | ND |
2015-09-15 | 13360727 | ND |
2015-09-15 | 13360685 | ND |
2015-09-15 | 13360748 | ND |
2016-12-27 | 15481333 | ND |
2016-12-27 | 15481312 | ND |
2016-12-27 | 15481354 | ND |
2016-12-27 | 15481291 | ND |
2017-03-16 | 15901256 | ND |
2017-03-16 | 15901277 | ND |
2017-03-16 | 15901505 | ND |
2017-03-16 | 15901298 | ND |
2017-03-16 | 15901235 | ND |
2017-05-23 | 16218713 | ND |
2017-05-23 | 16218734 | ND |
2017-05-23 | 16218464 | ND |
2017-05-23 | 16218443 | ND |
2017-08-30 | 16844199 | ND |
2017-08-30 | 16844220 | ND |
2017-11-15 | 17129201 | ND |
2017-11-15 | 17129180 | ND |
2018-02-28 | 7104860-01 | ND |
2018-06-06 | 8044976-01 | ND |
2018-06-06 | 8044976-02 | ND |
2018-06-06 | 8044976-03 | ND |
2018-11-19 | 8015122-01 | ND |
2019-05-20 | 9045072-01 | ND |
2019-05-20 | 9045072-02 | ND |
2019-05-20 | 9045072-03 | ND |
2019-08-21 | 9085002-03 | ND |