o-Dichlorobenzene
Tri County Joint Municipal Authority
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 9 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-02-20 | 4021747-01 | ND |
2014-03-21 | 4031896-01 | ND |
2014-04-04 | 4040494-01 | ND |
2014-05-09 | 4051036-01 | ND |
2014-05-09 | 4051036-02 | ND |
2014-08-08 | 4080935-01 | ND |
2014-08-08 | 4080935-02 | ND |
2014-11-07 | 4110753-01 | ND |
2014-11-07 | 4110753-02 | ND |
2015-04-24 | 12698083 | ND |
2015-04-24 | 12698063 | ND |
2016-05-20 | 14338731 | ND |
2017-12-07 | 17241115 | ND |
2018-11-07 | 18K0900-01 | ND |
2019-10-02 | 19J1014-01 | ND |