o-Dichlorobenzene
Granton 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 | 5 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-03-19 | 775760 | ND |
2014-04-29 | 782996 | ND |
2014-04-29 | 782993 | ND |
2014-08-20 | 812183 | ND |
2014-11-19 | 832438 | ND |
2015-02-17 | 844135 | ND |
2015-02-17 | 844138 | ND |
2015-06-09 | 864449 | ND |
2015-08-04 | 875052 | ND |
2015-11-18 | 894789 | ND |
2016-01-20 | 901915 | ND |
2016-01-20 | 901913 | ND |
2016-06-15 | 927228 | ND |
2016-08-23 | 941021 | ND |
2016-11-30 | 962298 | ND |
2017-02-01 | 971836 | ND |
2017-02-01 | 971839 | ND |
2017-06-19 | 998523 | ND |
2017-09-19 | 1019400 | ND |
2017-12-12 | 1033097 | ND |
2018-03-12 | 1044565 | ND |
2018-05-01 | 1052816 | ND |
2018-08-06 | 1071715 | ND |
2018-10-08 | 1085746 | ND |
2019-01-08 | 1100095 | ND |