Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Domestic Water Company Royal Forest Subdivision

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND30ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-05-09AE25753ND
2018-05-09AE25755ND
2019-03-04AE56877ND
2019-03-04AE56881ND
2020-02-20AE99297ND
2020-02-20AE99313ND
2020-05-26AF12600ND
2021-06-11AF57836ND
2021-12-22AF79282ND
2022-04-12AF92919ND
2022-04-12AF92923ND
2023-08-16AG52846ND
2023-08-16AG52856ND