o-Dichlorobenzene
Maywood Mutual Water Company #1
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 | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 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 |
---|---|---|
2014-03-21 | 9588-002-1315 | ND |
2014-06-25 | 9588-003-0905 | ND |
2014-07-17 | 9588-003-1045 | ND |
2015-03-26 | 9588-002-1025 | ND |
2016-02-05 | 9588-002-1036 | ND |
2016-02-05 | 9588-003-0955 | ND |
2017-01-20 | 9588-003-1230 | ND |
2017-06-01 | 9588-002-0904 | ND |
2017-07-25 | 3761-003-1250 | ND |
2018-06-29 | 9588-002-0925 | ND |
2018-06-29 | 9588-003-0905 | ND |
2018-10-22 | 9588-003-0905 | ND |
2019-06-25 | 9588-002-0910 | ND |
2019-10-15 | 9588-003-0910 | ND |