o-Dichlorobenzene
Hudson 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 | 8 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 5 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-03-26 | 776792 | ND |
2014-03-26 | 776786 | ND |
2014-03-26 | 776789 | ND |
2014-03-31 | 777341 | ND |
2014-06-16 | 797090 | ND |
2014-06-18 | 797882 | ND |
2014-08-25 | 812921 | ND |
2014-11-05 | 830047 | ND |
2015-02-04 | 841974 | ND |
2015-05-04 | 857799 | ND |
2015-07-14 | 870837 | ND |
2015-10-21 | 890287 | ND |
2017-04-03 | 980883 | ND |
2017-04-03 | 980874 | ND |
2017-04-03 | 980878 | ND |
2017-04-04 | 981146 | ND |
2017-04-05 | 981439 | ND |
2018-06-25 | 1063650 | ND |
2018-10-23 | 1088635 | ND |
2019-02-26 | 1106795 | ND |
2019-05-08 | 1119849 | ND |
2019-08-06 | 1139065 | ND |