o-Dichlorobenzene
City of Bay City
NOTE: City of Bay City purchases water from Bay Area Water System which is required to test for o-dichlorobenzene. Sample information shown below was taken by Bay Area Water System.
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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 1 | 0 | ND |
2019 | ND | 3 | 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
NOTE: City of Bay City purchases water from Bay Area Water System which is required to test for o-dichlorobenzene. Sample information shown below was taken by Bay Area Water System.
Date | Lab ID | Result |
---|---|---|
2018-04-10 | LLH74980 | ND |
2019-06-03 | LLI40595 | ND |
2019-09-16 | LLI64542 | ND |
2019-10-08 | LLI70019 | ND |