o-Dichlorobenzene
City of Seal Beach
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 | 4 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-01-30 | 4417-009-0955 | ND |
2014-01-30 | 4417-002-0900 | ND |
2014-01-30 | 4417-001-0930 | ND |
2014-02-25 | 4417-003-0740 | ND |
2015-01-20 | 4417-002-0830 | ND |
2015-01-20 | 4417-009-0805 | ND |
2016-01-27 | 4417-009-0910 | ND |
2016-01-27 | 4417-002-0930 | ND |
2017-01-12 | 4417-009-0835 | ND |
2017-01-12 | 4417-002-0815 | ND |
2018-01-16 | 4417-002-1030 | ND |
2018-01-16 | 4417-009-1100 | ND |
2018-02-27 | 4417-001-0930 | ND |
2018-05-16 | 4417-001-1100 | ND |
2019-01-24 | 4417-002-0905 | ND |
2019-01-24 | 4417-001-1005 | ND |
2019-03-14 | 4417-009-1335 | ND |
2019-04-30 | 4417-009-1000 | ND |
2019-04-30 | 4417-009-1010 | ND |