Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Mount Houston Road Municipal Utility 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
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
2018-06-18AE30242ND
2018-06-18AE30246ND
2019-07-15AE74415ND
2019-07-15AE74417ND
2020-07-09AF18907ND
2020-07-09AF18911ND
2021-06-14AF57828ND
2021-06-14AF57830ND
2022-05-05AF95728ND
2022-05-05AF95730ND
2023-06-01AG42806ND
2023-11-09AG63063ND