Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Castroville Community Services District

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND40ND
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023N/A00N/A

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
2019-01-28CA2710005_003_003-201901281035ND
2019-01-28CA2710005_005_005-201901281050ND
2019-01-28CA2710005_009_009-201901281045ND
2019-01-28CA2710005_004_004-201901281055ND
2022-01-10CA2710005_003_003-202201100900ND
2022-01-10CA2710005_005_005-202201100955ND
2022-01-10CA2710005_009_009-202201100905ND