o-Dichlorobenzene
Garden City Water and Sewer System
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 | 9 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-05-21 | V1418260 | ND |
2015-05-28 | V1520664 | ND |
2016-05-26 | V1622949 | ND |
2016-05-26 | V1622899 | ND |
2016-05-26 | V1622901 | ND |
2016-05-26 | V1622947 | ND |
2016-05-26 | V1622903 | ND |
2016-05-27 | V1623033 | ND |
2016-05-27 | V1623037 | ND |
2016-08-09 | V1635724 | ND |
2016-11-10 | V1651744 | ND |
2017-02-13 | V1705738 | ND |
2017-05-10 | V1719304 | ND |
2017-05-17 | V1720632 | ND |
2017-07-12 | V1730455 | ND |
2017-10-02 | V1745702 | ND |
2018-07-17 | V1833625 | ND |
2019-07-08 | V1932683 | ND |
2019-07-09 | V1932998 | ND |
2019-07-09 | V1932995 | ND |