Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Columbia Water Company

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND40ND
2021ND10ND
2022ND10ND
2023ND40ND

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
2018-04-022306480001ND
2019-04-109042204-01ND
2020-04-0722172648.00ND
2020-04-0722172669.00ND
2020-04-1322172770.00ND
2020-04-2322173050.00ND
2021-04-1224395231.00ND
2022-04-1126608859.00ND
2023-03-0628662967.00ND
2023-04-0328859668.00ND
2023-04-1729061115.00ND
2023-04-1728859830.00ND