o-Dichlorobenzene
Turtle Lake 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 | 2 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-06-02 | 793571 | ND |
2014-11-10 | 830716 | ND |
2015-03-11 | 848477 | ND |
2015-05-27 | 861790 | ND |
2015-09-02 | 880577 | ND |
2015-11-18 | 894765 | ND |
2016-03-01 | 907326 | ND |
2016-06-07 | 925252 | ND |
2016-08-30 | 942134 | ND |
2016-11-15 | 959234 | ND |
2017-02-14 | 973721 | ND |
2017-05-16 | 990718 | ND |
2017-08-16 | 1012017 | ND |
2017-11-20 | 1030453 | ND |
2018-03-05 | 1043367 | ND |
2018-05-29 | 1057673 | ND |
2018-08-14 | 1073825 | ND |
2018-11-14 | 1093091 | ND |
2019-06-05 | 1125562 | ND |