o-Dichlorobenzene
Meadow District
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 | 6 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-06-30 | S504511 | ND |
2014-07-24 | L5171754-3 | ND |
2014-07-24 | L5171754-2 | ND |
2014-08-25 | S479228 | ND |
2014-08-25 | S479187 | ND |
2014-10-24 | S251490 | ND |
2015-01-22 | S588750 | ND |
2015-08-12 | S612424 | ND |
2015-08-12 | S612423 | ND |
2015-10-20 | S614748 | ND |
2016-03-01 | S659176 | ND |
2016-08-17 | S670377 | ND |
2016-08-17 | S670376 | ND |
2017-01-25 | S670508 | ND |
2017-07-25 | S730815 | ND |
2017-07-25 | S679349 | ND |
2017-08-29 | S730913 | ND |
2017-08-29 | S730909 | ND |
2018-08-30 | S812183 | ND |
2018-08-30 | S812179 | ND |
2018-11-09 | S812573 | ND |
2019-08-01 | S898798 | ND |
2019-08-01 | S898802 | ND |