o-Dichlorobenzene
Ladd Water
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 | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-04-21 | 14113000301 | ND |
2014-06-05 | 14157003101 | ND |
2015-04-20 | 15113010701 | ND |
2016-05-23 | 16147000901 | ND |
2016-05-23 | 16147000701 | ND |
2016-05-23 | 16147000801 | ND |
2016-05-23 | 16147001001 | ND |
2017-04-18 | 17109001501 | ND |
2018-05-21 | 18144009101 | ND |
2019-04-17 | 19108005101 | ND |
2019-04-17 | 19108005201 | ND |
2019-04-17 | 19108005301 | ND |
2019-04-17 | 19108005001 | ND |