o-Dichlorobenzene
Maryland American Water Company
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 | 18 | 0 | ND |
2015 | ND | 13 | 0 | ND |
2016 | ND | 16 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 11 | 0 | ND |
2019 | ND | 15 | 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 |
---|---|---|
2014-01-14 | 0120003_02_24479 | ND |
2014-02-12 | 0120003_02_24872 | ND |
2014-02-12 | 0120003_02_24872 | ND |
2014-02-12 | 0120003_02_24872 | ND |
2014-02-12 | 0120003_02_24872 | ND |
2014-02-14 | 0120003_02_24873 | ND |
2014-02-18 | 0120003_02_24873 | ND |
2014-03-10 | 0120003_02_25038 | ND |
2014-04-08 | 0120003_02_25195 | ND |
2014-05-13 | 0120003_01_25676 | ND |
2014-05-13 | 0120003_02_25671 | ND |
2014-06-18 | 0120003_02_25934 | ND |
2014-07-16 | 0120003_02_26312 | ND |
2014-08-12 | 0120003_02_26567 | ND |
2014-09-04 | 0120003_02_00086 | ND |
2014-09-11 | 0120003_02_26908 | ND |
2014-10-15 | 0120003_02_27258 | ND |
2014-12-08 | 0120003_02_27708 | ND |
2015-01-15 | 0120003_02_28007 | ND |
2015-02-12 | 0120003_02_28168 | ND |
2015-03-04 | 28311401 | ND |
2015-04-14 | 28658101 | ND |
2015-05-12 | 28900201 | ND |
2015-06-16 | 29076501 | ND |
2015-07-14 | 29505701 | ND |
2015-08-11 | 29933801 | ND |
2015-09-08 | 30098901 | ND |
2015-10-06 | E16001485018 | ND |
2015-10-13 | 30312301 | ND |
2015-11-16 | 30555501 | ND |
2015-12-21 | 30763601 | ND |
2016-01-12 | 31004801 | ND |
2016-02-10 | 31164301 | ND |
2016-03-08 | 31416101 | ND |
2016-04-12 | 31602201 | ND |
2016-05-10 | 31993001 | ND |
2016-05-10 | 31992001 | ND |
2016-05-10 | 31991901 | ND |
2016-06-27 | 328777 | ND |
2016-07-12 | 326537 | ND |
2016-08-09 | 328815 | ND |
2016-09-01 | 33187001 | ND |
2016-09-20 | 33597601 | ND |
2016-10-11 | 334095 | ND |
2016-11-08 | 337002 | ND |
2016-11-30 | E17002347004 | ND |
2016-12-14 | 33923101 | ND |
2017-01-17 | 34232601 | ND |
2017-02-14 | 34563201 | ND |
2017-03-14 | 34852301 | ND |
2017-04-11 | 35076401 | ND |
2017-05-09 | 35398301 | ND |
2017-05-09 | 35393101 | ND |
2017-05-30 | 36129801 | ND |
2017-10-31 | E18001764001 | ND |
2018-05-15 | 39313501 | ND |
2018-05-15 | 39311001 | ND |
2018-06-12 | 39750101 | ND |
2018-07-17 | 40177201 | ND |
2018-08-06 | 40553401 | ND |
2018-09-18 | E19000995004 | ND |
2018-09-18 | 40907401 | ND |
2018-09-27 | E19001118001 | ND |
2018-10-09 | 41360801 | ND |
2018-11-05 | 41786201 | ND |
2018-12-05 | 42194901 | ND |
2019-01-15 | 42524401 | ND |
2019-02-13 | 42808201 | ND |
2019-03-13 | 43266901 | ND |
2019-04-10 | 435849 | ND |
2019-05-16 | 438936 | ND |
2019-05-21 | 438937 | ND |
2019-06-25 | 443655 | ND |
2019-07-17 | E20000222010 | ND |
2019-07-18 | 449856 | ND |
2019-08-28 | 455573 | ND |
2019-09-05 | 46211001 | ND |
2019-09-05 | E20000962001 | ND |
2019-10-02 | 46770701 | ND |
2019-11-11 | 47048901 | ND |
2019-12-10 | 47529401 | ND |