o-Dichlorobenzene
North Wales Water 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 |
---|---|---|---|---|
2014 | ND | 12 | 0 | ND |
2015 | ND | 13 | 0 | ND |
2016 | ND | 14 | 0 | ND |
2017 | ND | 13 | 0 | ND |
2018 | ND | 13 | 0 | ND |
2019 | ND | 12 | 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 |
---|---|---|
2014-03-04 | 20140745 | ND |
2014-03-17 | 20140959 | ND |
2014-03-17 | 20140958 | ND |
2014-03-17 | 20140966 | ND |
2014-03-17 | 20140965 | ND |
2014-03-17 | 20140964 | ND |
2014-03-17 | 20140963 | ND |
2014-03-17 | 20140962 | ND |
2014-03-17 | 20140961 | ND |
2014-03-17 | 20140960 | ND |
2014-06-10 | 20141963 | ND |
2014-08-05 | 20142640 | ND |
2015-03-10 | 12516861 | ND |
2015-03-16 | 12516756 | ND |
2015-03-16 | 12516840 | ND |
2015-03-16 | 12516819 | ND |
2015-03-16 | 12516798 | ND |
2015-03-16 | 12516777 | ND |
2015-03-16 | 12516735 | ND |
2015-03-16 | 12516714 | ND |
2015-03-16 | 12516693 | ND |
2015-03-16 | 12516672 | ND |
2015-07-06 | 13014443 | ND |
2015-09-14 | 13265883 | ND |
2015-12-01 | 13634666 | ND |
2016-03-07 | 13987491 | ND |
2016-03-14 | 13987428 | ND |
2016-03-14 | 13987470 | ND |
2016-03-14 | 13987449 | ND |
2016-03-14 | 13987407 | ND |
2016-03-14 | 13987386 | ND |
2016-03-14 | 13987365 | ND |
2016-03-14 | 13987344 | ND |
2016-03-14 | 13987323 | ND |
2016-03-14 | 13987302 | ND |
2016-06-07 | 14407372 | ND |
2016-06-29 | 14407399 | ND |
2016-09-06 | 14909848 | ND |
2016-12-06 | 15374016 | ND |
2017-03-16 | 15797859 | ND |
2017-05-01 | 16096365 | ND |
2017-05-01 | 16096344 | ND |
2017-05-01 | 16096281 | ND |
2017-05-01 | 16096449 | ND |
2017-05-01 | 16096302 | ND |
2017-05-01 | 16096428 | ND |
2017-05-01 | 16096407 | ND |
2017-05-01 | 16096323 | ND |
2017-05-01 | 16096386 | ND |
2017-06-06 | 16259050 | ND |
2017-09-05 | 16728650 | ND |
2017-12-05 | 17163812 | ND |
2018-03-12 | 20180936 | ND |
2018-03-12 | 20180937 | ND |
2018-03-12 | 20180935 | ND |
2018-03-12 | 20180938 | ND |
2018-03-12 | 20180934 | ND |
2018-03-12 | 20180939 | ND |
2018-03-12 | 20180933 | ND |
2018-03-12 | 20180940 | ND |
2018-03-12 | 20180932 | ND |
2018-03-13 | 20180956 | ND |
2018-06-05 | 20182148 | ND |
2018-09-04 | 20183373 | ND |
2018-12-18 | 20184775 | ND |
2019-03-05 | 20190857 | ND |
2019-03-12 | 20190961 | ND |
2019-03-12 | 20190960 | ND |
2019-03-12 | 20190962 | ND |
2019-03-12 | 20190959 | ND |
2019-03-12 | 20190963 | ND |
2019-03-12 | 20190958 | ND |
2019-03-12 | 20190964 | ND |
2019-03-12 | 20190957 | ND |
2019-03-12 | 20190956 | ND |
2019-09-03 | 20193443 | ND |
2019-12-03 | 20194748 | ND |