o-Dichlorobenzene
Spring Run Estates Water Treatment Plant
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 | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 2 | 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 |
---|---|---|
2014-08-06 | 14072467-01 | ND |
2015-08-17 | 13132523 | ND |
2016-08-24 | 14731258 | ND |
2017-07-11 | 16409360 | ND |
2017-10-24 | 16876475 | ND |
2018-03-15 | 8022071-01 | ND |
2018-04-03 | 8040501-01 | ND |
2018-07-05 | 8070910-01 | ND |
2018-10-04 | 8101122-01 | ND |
2019-02-07 | 9011007-01 | ND |