o-Dichlorobenzene
Dover Water Department
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 | 10 | 0 | ND |
2015 | ND | 7 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 10 | 0 | ND |
2018 | ND | 9 | 0 | ND |
2019 | ND | 7 | 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 |
---|---|---|
2014-02-18 | A400694002 | ND |
2014-05-08 | A402208001 | ND |
2014-07-10 | A404706001 | ND |
2014-07-14 | A404793001 | ND |
2014-07-14 | A404793003 | ND |
2014-07-23 | A405333001 | ND |
2014-07-23 | A405333002 | ND |
2014-07-23 | A405333004 | ND |
2014-08-07 | A406202001 | ND |
2014-11-03 | A408858001 | ND |
2015-07-21 | A505471001 | ND |
2015-07-21 | A505471002 | ND |
2015-07-21 | A505471003 | ND |
2015-07-21 | A505471004 | ND |
2015-07-23 | A505633002 | ND |
2015-07-23 | A505633003 | ND |
2015-07-23 | A505633001 | ND |
2016-07-06 | B605223001 | ND |
2016-07-06 | B605223003 | ND |
2016-07-07 | B605299002 | ND |
2016-07-07 | B605299003 | ND |
2016-07-07 | B605299004 | ND |
2016-07-13 | B605689002 | ND |
2016-07-25 | B606384002 | ND |
2017-05-12 | B702494001 | ND |
2017-06-01 | B703156002 | ND |
2017-07-19 | B705657002 | ND |
2017-07-19 | B705657004 | ND |
2017-07-19 | B705657001 | ND |
2017-07-20 | B705749002 | ND |
2017-07-20 | B705749004 | ND |
2017-07-20 | B705749006 | ND |
2017-10-10 | B709124001 | ND |
2017-10-10 | B709124002 | ND |
2018-01-22 | B800282001 | ND |
2018-01-22 | B800282002 | ND |
2018-03-27 | B801275001 | ND |
2018-04-19 | B801796001 | ND |
2018-05-15 | B802449002 | ND |
2018-07-24 | B805761001 | ND |
2018-07-24 | B805761002 | ND |
2018-08-15 | B806964001 | ND |
2018-09-05 | B807804001 | ND |
2019-04-11 | B901990001 | ND |
2019-07-02 | B904902001 | ND |
2019-07-02 | B904902002 | ND |
2019-07-10 | B905242002 | ND |
2019-07-10 | B905242004 | ND |
2019-07-10 | B905242005 | ND |
2019-11-14 | B910098001 | ND |